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The neuron specific RNA-binding proteins NOVA1 and NOVA2 are highly homologous alternative splicing regulators . NOVA proteins regulate at least 700 alternative splicing events in vivo , yet relatively little is known about the biologic consequences of NOVA action and in particular about functional differences between ... | The first step of producing a protein involves the DNA of a gene being copied to form a molecule of RNA . This RNA molecule can often be processed to create several different “messenger” RNAs ( mRNAs ) , each of which are used to produce a different protein by a process known as alternative splicing . A class of protei... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Material",
"and",
"methods"
] | [
"neuroscience"
] | 2016 | NOVA2-mediated RNA regulation is required for axonal pathfinding during development |
Numerous genetic variants associated with MEF2C are linked to autism , intellectual disability ( ID ) and schizophrenia ( SCZ ) – a heterogeneous collection of neurodevelopmental disorders with unclear pathophysiology . MEF2C is highly expressed in developing cortical excitatory neurons , but its role in their developm... | Abnormal development of the brain contributes to intellectual disability , as well as to a number of psychiatric disorders , including schizophrenia and autism . As the brain develops , neurons establish connections with one another called synapses , which are either excitatory or inhibitory . At excitatory synapses , ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2016 | MEF2C regulates cortical inhibitory and excitatory synapses and behaviors relevant to neurodevelopmental disorders |
Bre1 , a conserved E3 ubiquitin ligase in Saccharomyces cerevisiae , together with its interacting partner Lge1 , are responsible for histone H2B monoubiquitination , which regulates transcription , DNA replication , and DNA damage response and repair , ensuring the structural integrity of the genome . Deletion of BRE1... | Most of the DNA in a cell is stored in structures called chromosomes . During every cell cycle , each cell needs to replicate its chromosomes , hold the two chromosome copies ( also known as “sister chromatids” ) together before cell division , and distribute them equally to the two new cells . Each step must be execut... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"chromosomes",
"and",
"gene",
"expression",
"cell",
"biology"
] | 2017 | E3 ubiquitin ligase Bre1 couples sister chromatid cohesion establishment to DNA replication in Saccharomyces cerevisiae |
The Hippo tumor suppressor pathway regulates tissue growth in Drosophila by restricting the activity of the transcriptional coactivator Yorkie ( Yki ) , which normally complexes with the TEF/TEAD family DNA-binding transcription factor Scalloped ( Sd ) to drive the expression of growth-promoting genes . Given its pivot... | Animals uses a range of mechanisms to stop their organs from growing once they have reached the right shape and size . One of these processes , a set of chemical messages called the Hippo pathway , controls the balance of cell death and cell division . In fruit flies , Hippo works by repressing a complex formed of two ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"stem",
"cells",
"and",
"regenerative",
"medicine",
"developmental",
"biology"
] | 2019 | Nerfin-1 represses transcriptional output of Hippo signaling in cell competition |
Little is known about enteropathogen seroepidemiology among children in low-resource settings . We measured serological IgG responses to eight enteropathogens ( Giardia intestinalis , Cryptosporidium parvum , Entamoeba histolytica , Salmonella enterica , enterotoxigenic Escherichia coli , Vibrio cholerae , Campylobacte... | Diarrhea , which is caused by bacteria such as Salmonella or by viruses like norovirus , is the fourth leading cause of death among children worldwide , with children in low-resource settings being at highest risk . The pathogens that cause diarrhea spread when stool from infected people comes into contact with new hos... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"epidemiology",
"and",
"global",
"health"
] | 2019 | Enteropathogen antibody dynamics and force of infection among children in low-resource settings |
Manipulation of the gut microbiota holds great promise for the treatment of diseases . However , a major challenge is the identification of therapeutically potent microbial consortia that colonize the host effectively while maximizing immunologic outcome . Here , we propose a novel workflow to select optimal immune-ind... | The role of the immune system is to protect the body from infection . It does this by using a powerful toolkit that isolates pathogens and removes damaged tissue . When directed against bacteria and viruses , the system helps to keep the body safe , but an imbalance of the components of the immune system can lead to in... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"computational",
"and",
"systems",
"biology",
"immunology",
"and",
"inflammation"
] | 2018 | Computer-guided design of optimal microbial consortia for immune system modulation |
Cytoplasmic dynein plays critical roles within the developing and mature nervous systems , including effecting nuclear migration , and retrograde transport of various cargos . Unsurprisingly , mutations in dynein are causative of various developmental neuropathies and motor neuron diseases . These ‘dyneinopathies’ defi... | Motor proteins maintain order by transporting biomolecules and various structures within living cells . Dynein is one such motor that moves many types of cargoes along tracks called microtubules , which are spread across the cell’s interior . This motor is particularly important in nerve cells , which can be very long ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology"
] | 2019 | Molecular basis for dyneinopathies reveals insight into dynein regulation and dysfunction |
The nonsense-mediated mRNA decay ( NMD ) pathway degrades mRNAs containing long 3'UTRs to perform dual roles in mRNA quality control and gene expression regulation . However , expansion of vertebrate 3'UTR functions has required a physical expansion of 3'UTR lengths , complicating the process of detecting nonsense muta... | Genes are used as templates to create molecules of messenger RNA ( mRNA ) that contain all the information needed to make a protein . This information begins with a 'start site' and ends with a 'stop site . ' The regions of the mRNA outside of the start and stop sites are called untranslated regions . Not all mRNAs are... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"microbiology",
"and",
"infectious",
"disease"
] | 2016 | Polypyrimidine tract binding protein 1 protects mRNAs from recognition by the nonsense-mediated mRNA decay pathway |
Free heme is cytotoxic as exemplified by hemolytic diseases and genetic deficiencies in heme recycling and detoxifying pathways . Thus , intracellular accumulation of heme has not been observed in mammalian cells to date . Here we show that mice deficient for the heme transporter SLC48A1 ( also known as HRG1 ) accumula... | Specialized cells , known as red blood cells , are responsible for transporting oxygen to various organs in the body . Each red blood cell contains over a billion molecules of heme which make up the iron containing portion of the hemoglobin protein that binds and transports oxygen . When red blood cells reach the end o... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"cell",
"biology"
] | 2019 | Hemozoin produced by mammals confers heme tolerance |
Sleep is an essential behavioral state . It is induced by conserved sleep-active neurons that express GABA . However , little is known about how sleep neuron function is determined and how sleep neurons change physiology and behavior systemically . Here , we investigated sleep in Caenorhabditis elegans , which is induc... | Sleep keeps us healthy and happy , and is essential for all animals . Specialized neurons in the brain become highly active to generate this restful state . There are relatively few of these “sleep-active” neurons in the brain , but they are able to control sleep in the entire animal . Like most other neurons , sleep-a... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2016 | Sleep-active neuron specification and sleep induction require FLP-11 neuropeptides to systemically induce sleep |
Skeletal muscle is highly sensitive to mutations in genes that participate in membrane stability and cellular attachment , which often leads to muscular dystrophy . Here we show that Thrombospondin-4 ( Thbs4 ) regulates skeletal muscle integrity and its susceptibility to muscular dystrophy through organization of membr... | Muscle cells , also known as myofibers , need to be robust in order to withstand the physical stresses of contracting and relaxing . As a result , the cell surface membrane that surrounds myofibers is more strongly anchored to its surroundings than that of other cells . Muscular dystrophies are a group of muscle-wastin... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology"
] | 2016 | Thrombospondin expression in myofibers stabilizes muscle membranes |
Allostery is an inherent feature of proteins , but it remains challenging to reveal the mechanisms by which allosteric signals propagate . A clearer understanding of this intrinsic circuitry would afford new opportunities to modulate protein function . Here , we have identified allosteric sites in protein tyrosine phos... | Proteins perform many important jobs in each of the cells in our bodies , such as transporting other molecules and helping chemical reactions to occur . The part of the protein directly involved in these tasks is called the active site . Other areas of the protein can communicate with the active site to switch the prot... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2018 | An expanded allosteric network in PTP1B by multitemperature crystallography, fragment screening, and covalent tethering |
In most well-studied rod-shaped bacteria , peptidoglycan is primarily crosslinked by penicillin-binding proteins ( PBPs ) . However , in mycobacteria , crosslinks formed by L , D-transpeptidases ( LDTs ) are highly abundant . To elucidate the role of these unusual crosslinks , we characterized Mycobacterium smegmatis c... | Most bacteria have a cell wall that protects them and maintains their shape . Many of these organisms make their cell walls from fibers of proteins and sugars , called peptidoglycan . As bacteria grow , peptidoglycan is constantly broken down and reassembled , and in many species , new units of peptidoglycan are added ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"microbiology",
"and",
"infectious",
"disease"
] | 2018 | Maturing Mycobacterium smegmatis peptidoglycan requires non-canonical crosslinks to maintain shape |
Understanding genome to phenotype linkages has been greatly enabled by genomic sequencing . However , most genome analysis is typically confined to the nuclear genome . We conducted a metabolomic QTL analysis on a reciprocal RIL population structured to examine how variation in the organelle genomes affects phenotypic ... | The vast majority of genes in plant and animal cells are located on chromosomes within the nucleus . However , cells also contain a small number of genes outside the nucleus in cellular organelles such as the mitochondria , which generate energy , and the chloroplasts , which carry out photosynthesis . All these non-nu... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"plant",
"biology",
"genetics",
"and",
"genomics"
] | 2013 | Cytoplasmic genetic variation and extensive cytonuclear interactions influence natural variation in the metabolome |
Neuronal circuit mapping using electron microscopy demands laborious proofreading or reconciliation of multiple independent reconstructions . Here , we describe new methods to apply quantitative arbor and network context to iteratively proofread and reconstruct circuits and create anatomically enriched wiring diagrams ... | The nervous system contains cells called neurons , which connect to each other to form circuits that send and process information . Each neuron receives and transmits signals to other neurons via very small junctions called synapses . Neurons are shaped a bit like trees , and most input synapses are located in the tini... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2016 | Quantitative neuroanatomy for connectomics in Drosophila |
Aberrant alternative pre-mRNA splicing ( AS ) events have been associated with several disorders . However , it is unclear whether deregulated AS directly contributes to disease . Here , we reveal a critical role of the AS regulator epithelial splicing regulator protein 1 ( ESRP1 ) for intestinal homeostasis and pathog... | The lining of the intestine is just one cell thick , and yet it can act as an effective barrier between the inside of the body and the contents of the digestive system . This lining is often disturbed during bowel cancer , inflammatory bowel disease and other intestinal diseases , causing the barrier to fail and the gu... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology",
"cancer",
"biology"
] | 2017 | The ESRP1-GPR137 axis contributes to intestinal pathogenesis |
The orbitofrontal cortex ( OFC ) has been described as signaling outcome expectancies or value . Evidence for the latter comes from the studies showing that neural signals in the OFC correlate with value across features . Yet features can co-vary with value , and individual units may participate in multiple ensembles c... | Imagine you are at a restaurant and the waiter offers you a choice of cheesecake or fruit salad for dessert . When making your choice it is likely that you will consider the features of these desserts , such as their taste , their sweetness or how healthy they are . However , when you decide which dessert to have , you... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2014 | Orbitofrontal neurons acquire responses to ‘valueless’ Pavlovian cues during unblocking |
Vascular endothelial growth factor-C ( VEGF-C ) acts primarily on endothelial cells , but also on non-vascular targets , for example in the CNS and immune system . Here we describe a novel , unique VEGF-C form in the human reproductive system produced via cleavage by kallikrein-related peptidase 3 ( KLK3 ) , aka prosta... | The lymphatic system is composed of networks of vessels that drain fluids from the body’s tissues and filter it back into the blood . Growing these vessels depends on a factor known as VEGF-C , which is released in an inactive form and must be cut by enzymes before it can work . One enzyme that is known to activate the... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cancer",
"biology"
] | 2019 | KLK3/PSA and cathepsin D activate VEGF-C and VEGF-D |
While more than 70 genes have been linked to deafness , most of which are expressed in mechanosensory hair cells of the inner ear , a challenge has been to link these genes into molecular pathways . One example is Myo7a ( myosin VIIA ) , in which deafness mutations affect the development and function of the mechanicall... | Inside the inner ear , sensory cells called hair cells detect and respond to sounds and head movements . These cells have a mechanically sensitive structure called the hair bundle , which is made of many thin projections called stereocilia . The stereocilia are linked so that when they bend in response to a sound or he... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology",
"neuroscience"
] | 2016 | PDZD7-MYO7A complex identified in enriched stereocilia membranes |
How thermal , mechanical and chemical stimuli applied to the skin are transduced into signals transmitted by peripheral neurons to the CNS is an area of intense study . Several studies indicate that transduction mechanisms are intrinsic to cutaneous neurons and that epidermal keratinocytes only modulate this transducti... | When a person touches a hot saucepan , nerve cells in the skin send a message to the brain that causes the person to pull away quickly . Similar messages alert the brain when the skin comes in contact with an object that is cold or causes pain . These nerve cells also help to transmit information about other sensations... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2015 | Keratinocytes can modulate and directly initiate nociceptive responses |
The human gut microbiota impacts host metabolism and has been implicated in the pathophysiology of obesity and metabolic syndromes . However , defining the roles of specific microbial activities and metabolites on host phenotypes has proven challenging due to the complexity of the microbiome-host ecosystem . Here , we ... | The microbiome , the collection of bacteria that live in and on human bodies , has a strong influence on how well the body works . However , the diversity of the microbiome makes it difficult to untangle exactly how it has these effects . For example , it is poorly understood how the hundreds of species of bacteria tha... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"microbiology",
"and",
"infectious",
"disease"
] | 2018 | A selective gut bacterial bile salt hydrolase alters host metabolism |
Recently , a prototype dengue early warning system was developed to produce probabilistic forecasts of dengue risk three months ahead of the 2014 World Cup in Brazil . Here , we evaluate the categorical dengue forecasts across all microregions in Brazil , using dengue cases reported in June 2014 to validate the model .... | Dengue is a viral infection spread by mosquitoes and is widespread in tropical and sub-tropical regions . Dengue epidemics in Brazil often occur without warning , and can overwhelm the public health services . Forecasts of seasonal climates combined with early data from a dengue surveillance system could help public he... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"epidemiology",
"and",
"global",
"health",
"microbiology",
"and",
"infectious",
"disease"
] | 2016 | Evaluating probabilistic dengue risk forecasts from a prototype early warning system for Brazil |
Integrins are heterodimeric cell surface adhesion and signaling receptors that are essential for metazoan existence . Some integrins contain an I-domain that is a major ligand binding site . The ligands preferentially engage the active forms of the integrins and trigger signaling cascades that alter numerous cell funct... | The outer surfaces of animal cells are coated with proteins , including many that are able to sense signals from the environment . The integrins are one such group of proteins . Particular ions or small molecules – collectively known as ligands – can bind to these proteins and activate cascades of signaling events insi... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"microbiology",
"and",
"infectious",
"disease"
] | 2015 | Bordetella adenylate cyclase toxin is a unique ligand of the integrin complement receptor 3 |
This study sought to evaluate the performance of metabolic gestational age estimation models developed in Ontario , Canada in infants born in Bangladesh . Cord and heel prick blood spots were collected in Bangladesh and analyzed at a newborn screening facility in Ottawa , Canada . Algorithm-derived estimates of gestati... | Complications from preterm birth are the leading cause of death among children under five . Ultrasounds are routinely used in wealthy countries to track babies' development . In countries with limited resources , however , ultrasounds are rare , making it harder to estimate how many children are born prematurely . Bloo... | [
"Abstract",
"Introduction",
"Materials",
"and",
"methods"
] | [
"epidemiology",
"and",
"global",
"health"
] | 2019 | External validation of postnatal gestational age estimation using newborn metabolic profiles in Matlab, Bangladesh |
Brains regulate behavioral responses with distinct timings . Here we investigate the cellular and molecular mechanisms underlying the timing of decision-making during olfactory navigation in Caenorhabditis elegans . We find that , based on subtle changes in odor concentrations , the animals appear to choose the appropr... | Animals use information from their environment to make decisions , like where to go , what to eat , and with whom to mate . This information may be changing or confusing , and decisions may be quick when the sensory information is clear , or slower when the sensory clues are muddled . Scientists often study this kind o... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2017 | Calcium dynamics regulating the timing of decision-making in C. elegans |
The link between the combined action of neuromodulators in the brain and global brain states remains a mystery . In this study , using biophysically realistic models of the thalamocortical network , we identified the critical intrinsic and synaptic mechanisms , associated with the putative action of acetylcholine ( ACh... | There are several stages of sleep that cycle repeatedly through the night with each producing distinctive patterns of electrical activity in the brain . It is thought that these patterns may help us to remember things that have happened throughout the day . Cells in parts of the brain called the hypothalamus and the br... | [
"Abstract",
"Introduction",
"Results",
"Discussion"
] | [
"neuroscience"
] | 2016 | Cellular and neurochemical basis of sleep stages in the thalamocortical network |
Most bacteria use an indirect pathway to generate aminoacylated glutamine and/or asparagine tRNAs . Clinical isolates of Mycobacterium tuberculosis with increased rates of error in gene translation ( mistranslation ) involving the indirect tRNA-aminoacylation pathway have increased tolerance to the first-line antibioti... | A bacterium called Mycobacterium tuberculosis is responsible for nearly 98% of cases of tuberculosis , which kills more people worldwide than any other infectious disease . This is due , in part , to the time it takes to cure individuals of the disease: patients have to take antibiotics continuously for at least six mo... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"microbiology",
"and",
"infectious",
"disease"
] | 2018 | Kasugamycin potentiates rifampicin and limits emergence of resistance in Mycobacterium tuberculosis by specifically decreasing mycobacterial mistranslation |
Treatment of EGFR-mutant lung cancer with erlotinib results in dramatic tumor regression but it is invariably followed by drug resistance . In characterizing early transcriptional changes following drug treatment of mutant EGFR-addicted cells , we identified the stem cell transcriptional regulator SOX2 as being rapidly... | Tumors can form when cells gain mutations in genes that enable them to grow and divide rapidly . In some human lung cancers , genetic mutations are found in a gene that makes a protein called EGFR . This protein encourages cells to divide and the mutations can lead to the cancer cells producing more EGFR , or producing... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cancer",
"biology"
] | 2015 | Inhibition of mutant EGFR in lung cancer cells triggers SOX2-FOXO6-dependent survival pathways |
The Na+/K+-pump maintains the physiological K+ and Na+ electrochemical gradients across the cell membrane . It operates via an 'alternating-access' mechanism , making iterative transitions between inward-facing ( E1 ) and outward-facing ( E2 ) conformations . Although the general features of the transport cycle are kno... | A protein called the sodium-potassium pump resides in the membrane that surrounds living cells . The role of this protein is to 'pump' sodium and potassium ions across the membrane to help restore their concentration inside and outside of the cell . About 25% of the body's energy is used to keep the pump going , rising... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"structural",
"biology",
"and",
"molecular",
"biophysics",
"computational",
"and",
"systems",
"biology"
] | 2016 | The selectivity of the Na+/K+-pump is controlled by binding site protonation and self-correcting occlusion |
Catechol dehydroxylation is a central chemical transformation in the gut microbial metabolism of plant- and host-derived small molecules . However , the molecular basis for this transformation and its distribution among gut microorganisms are poorly understood . Here , we characterize a molybdenum-dependent enzyme from... | Inside the human gut there are trillions of bacteria . These microbes are critical for breaking down and modifying molecules that the body consumes ( such as nutrients and drugs ) and produces ( such as hormones ) . Although metabolizing these molecules is known to impact health and disease , little is known about the ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"microbiology",
"and",
"infectious",
"disease"
] | 2020 | A widely distributed metalloenzyme class enables gut microbial metabolism of host- and diet-derived catechols |
Improving in one aspect of a task can undermine performance in another , but how such opposing demands play out in single cells and impact on fitness is mostly unknown . Here we study budding yeast in dynamic environments of hyperosmotic stress and show how the corresponding signalling network increases cellular surviv... | The faster we do tasks the harder it is to do them well . For example , when we wish to judge if , say , a cup , is too hot , we first quickly withdraw our hand after touching it: we know that the cup is hot but not how much . Next we hold a finger against the cup to accurately judge its temperature . Such speed-accura... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods",
"and",
"materials"
] | [
"computational",
"and",
"systems",
"biology"
] | 2017 | Distributing tasks via multiple input pathways increases cellular survival in stress |
Understanding how cellular identity naturally interconverts with high efficiency and temporospatial precision is crucial for regenerative medicine . Here , we revealed a natural midgut-to-renal lineage conversion event during Drosophila metamorphosis and identified the evolutionarily-conserved homeodomain protein Cut a... | As an embryo develops , an organism transforms from a single cell into an organized collection of different cells , tissues and organs . Regulated by genes and messenger molecules , non-specialized cells known as precursor cells , move , divide and adapt to produce the different cells in the adult body . However , some... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"cell",
"biology"
] | 2018 | Temporospatial induction of homeodomain gene cut dictates natural lineage reprogramming |
The apical inflammatory cytokine TNF regulates numerous important biological processes including inflammation and cell death , and drives inflammatory diseases . TNF secretion requires TACE ( also called ADAM17 ) , which cleaves TNF from its transmembrane tether . The trafficking of TACE to the cell surface , and stimu... | Inflammation forms part of the body's defense system against pathogens , but if the system becomes faulty , it can cause problems linked to inflammatory and autoimmune diseases . Immune cells coordinate their activity using specific signaling molecules called cytokines . For example , the cytokine TNF is an important t... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"cell",
"biology"
] | 2018 | iTAP, a novel iRhom interactor, controls TNF secretion by policing the stability of iRhom/TACE |
BRCA1 plays a critical role in homology-directed repair ( HDR ) of DNA double strand breaks , and the repair defect of BRCA1-mutant cancer cells is being targeted with platinum drugs and poly ( ADP-ribose ) polymerase ( PARP ) inhibitors . We have employed relatively simple and sensitive assays to determine the functio... | Genes are the instruction manuals of life and contain the information needed to build the proteins that keep cells alive . Over time , genes can accumulate errors or mutations and eventually become faulty , which can lead to diseases like cancer . Sometimes mutations can be passed on through generations and increase th... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"chromosomes",
"and",
"gene",
"expression",
"cancer",
"biology"
] | 2017 | Functional and mutational landscapes of BRCA1 for homology-directed repair and therapy resistance |
Immersive virtual reality ( VR ) enables naturalistic neuroscientific studies while maintaining experimental control , but dynamic and interactive stimuli pose methodological challenges . We here probed the link between emotional arousal , a fundamental property of affective experience , and parieto-occipital alpha pow... | Human emotions are complex and difficult to study . It is particularly difficult to study emotional arousal , this is , how engaging , motivating , or intense an emotional experience is . To learn how the human brain processes emotions , researchers usually show emotional images to participants in the laboratory while ... | [
"Abstract",
"Introduction",
"Materials",
"and",
"methods",
"Results",
"Discussion"
] | [
"neuroscience"
] | 2021 | Decoding subjective emotional arousal from EEG during an immersive virtual reality experience |
The timing and accuracy of perceptual decision-making is exquisitely sensitive to fluctuations in arousal . Although extensive research has highlighted the role of various neural processing stages in forming decisions , our understanding of how arousal impacts these processes remains limited . Here we isolated electrop... | Driving along a busy street requires you to constantly monitor the behavior of other road users . You need to be able to spot and avoid the car that suddenly changes lane , or the pedestrian who steps out in front of you . How fast you can react to such events depends in part on your brain's level of alertness , or 'ar... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2019 | Behavioural and neural signatures of perceptual decision-making are modulated by pupil-linked arousal |
In malaria , rosetting is described as a phenomenon where an infected erythrocyte ( IRBC ) is attached to uninfected erythrocytes ( URBC ) . In some studies , rosetting has been associated with malaria pathogenesis . Here , we have identified a new type of rosetting . Using a step-by-step approach , we identified IGFBP... | Malaria is a life-threatening disease transmitted by mosquitoes infected with Plasmodium parasites . Part of the parasite life cycle happens inside human red blood cells . The surface of an infected red blood cell is coated with parasite proteins , which attract the attention of white blood cells called monocytes . The... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"microbiology",
"and",
"infectious",
"disease",
"immunology",
"and",
"inflammation"
] | 2020 | Plasmodium-infected erythrocytes induce secretion of IGFBP7 to form type II rosettes and escape phagocytosis |
Retinal axon projections form a map of the visual environment in the tectum . A zebrafish larva typically detects a prey object in its peripheral visual field . As it turns and swims towards the prey , the stimulus enters the central , binocular area , and seemingly expands in size . By volumetric calcium imaging , we ... | The retina is the thin layer of tissue in the eye that can receive light stimuli and convert them into electric signals to be transmitted to the brain . The cells that sense fine detail cluster at the center of the retina while the motion-sensing cells that keep track of movement lie at the periphery . When zebrafish l... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2020 | Retinotectal circuitry of larval zebrafish is adapted to detection and pursuit of prey |
Respiration , an essential metabolic process , provides cells with chemical energy . In eukaryotes , respiration occurs via the mitochondrial electron transport chain ( mETC ) composed of several large membrane-protein complexes . Complex I ( CI ) is the main entry point for electrons into the mETC . For plants , limit... | Respiration is the process used by all forms of life to turn organic matter from food into energy that cells can use to live and grow . The final stage of this process relies on an intricate chain of protein complexes which produce the molecule that cells use for energy . Complexes in the chain are made up of specific ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2020 | Atomic structure of a mitochondrial complex I intermediate from vascular plants |
Sas-6 and Ana2/STIL proteins are required for centriole duplication and the homo-oligomerisation properties of Sas-6 help establish the ninefold symmetry of the central cartwheel that initiates centriole assembly . Ana2/STIL proteins are poorly conserved , but they all contain a predicted Central Coiled-Coil Domain ( C... | Most animal cells contain structures known as centrioles . Typically , a cell that is not dividing contains a pair of centrioles . But when a cell prepares to divide , the centrioles are duplicated . The two pairs of centrioles then organize the scaffolding that shares the genetic material equally between the newly for... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology",
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2015 | The homo-oligomerisation of both Sas-6 and Ana2 is required for efficient centriole assembly in flies |
Plastids are supported by a wide range of proteins encoded within the nucleus and imported from the cytoplasm . These plastid-targeted proteins may originate from the endosymbiont , the host , or other sources entirely . Here , we identify and characterise 770 plastid-targeted proteins that are conserved across the och... | The cells of most plants and algae contain compartments called chloroplasts that enable them to capture energy from sunlight in a process known as photosynthesis . Chloroplasts are the remnants of photosynthetic bacteria that used to live freely in the environment until they were consumed by a larger cell . “Complex” c... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"evolutionary",
"biology",
"cell",
"biology"
] | 2017 | Chimeric origins of ochrophytes and haptophytes revealed through an ancient plastid proteome |
Calcium ( Ca2+ ) plays an important role in the function and health of neurons . In vertebrate cone photoreceptors , Ca2+ controls photoresponse sensitivity , kinetics , and light adaptation . Despite the critical role of Ca2+ in supporting the function and survival of cones , the mechanism for its extrusion from cone ... | Cells known as photoreceptors sense light in the eye . Light activates signaling pathways inside the photoreceptors that relay visual information to nerve cells , which carry the information to the brain . Photoreceptors called cone cells allow us to distinguish different colors of light and therefore play an important... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2017 | The Na+/Ca2+, K+ exchanger NCKX4 is required for efficient cone-mediated vision |
To follow the dynamics of meiosis in the model plant Arabidopsis , we have established a live cell imaging setup to observe male meiocytes . Our method is based on the concomitant visualization of microtubules ( MTs ) and a meiotic cohesin subunit that allows following five cellular parameters: cell shape , MT array , ... | In plant cells , as in other cells , genetic information is stored within structures known as chromosomes . Most of the cells in a plant contain a duplicated set of chromosomes that the plant needs to survive . However , plants also produce some cells known as sex cells that only have a single set of chromosomes . This... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"plant",
"biology",
"cell",
"biology",
"tools",
"and",
"resources"
] | 2019 | Live cell imaging of meiosis in Arabidopsis thaliana |
The integration of most membrane proteins into the cytoplasmic membrane of bacteria occurs co-translationally . The universally conserved YidC protein mediates this process either individually as a membrane protein insertase , or in concert with the SecY complex . Here , we present a structural model of YidC based on e... | Cells are surrounded by a plasma membrane that acts like a barrier to help to keep the cell intact . Proteins are embedded in this plasma membrane; and some of these membrane proteins act as channels that allow molecules to enter and leave the cell , while others allow the cell to communicate with its surroundings . Li... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology",
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2014 | A structural model of the active ribosome-bound membrane protein insertase YidC |
Catecholamines modulate the impact of motivational cues on action . Such motivational biases have been proposed to reflect cue-based , ‘Pavlovian’ effects . Here , we assess whether motivational biases may also arise from asymmetrical instrumental learning of active and passive responses following reward and punishment... | When we see a threat , we tend to hold back . When we see a reward , we have a strong urge to approach . Most of the time , these hardwired tendencies – or biases – are the right thing to do . However , our behaviour is not all hardwired; we can also learn from our previous experiences . But might this learning be bias... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2017 | Catecholaminergic challenge uncovers distinct Pavlovian and instrumental mechanisms of motivated (in)action |
The membrane-bound transcription factor ATF6α plays a cytoprotective role in the unfolded protein response ( UPR ) , required for cells to survive ER stress . Activation of ATF6α promotes cell survival in cancer models . We used cell-based screens to discover and develop Ceapins , a class of pyrazole amides , that bloc... | Newly made proteins must be folded into specific three-dimensional shapes before they can perform their roles in cells . Many proteins are folded in a cell compartment called the endoplasmic reticulum . The cell closely monitors the quality of the work done by this compartment . If the endoplasmic reticulum has more pr... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology"
] | 2016 | Ceapins are a new class of unfolded protein response inhibitors, selectively targeting the ATF6α branch |
Mutations in the human telomerase reverse transcriptase ( TERT ) promoter are the most frequent non-coding mutations in cancer , but their molecular mechanism in tumorigenesis has not been established . We used genome editing of human pluripotent stem cells with physiological telomerase expression to elucidate the mech... | The bulk of the DNA in the human genome is divided between 23 pairs of chromosomes . The ends of these chromosomes contain a repetitive stretch of DNA known as a telomere . Every time a cell divides , a portion of the telomere is lost and can be restored by an enzyme called telomerase . If the telomeres shorten below a... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Material",
"and",
"methods"
] | [
"chromosomes",
"and",
"gene",
"expression",
"developmental",
"biology"
] | 2015 | Cancer-associated TERT promoter mutations abrogate telomerase silencing |
An opioid epidemic is spreading in North America with millions of opioid overdoses annually . Opioid drugs , like fentanyl , target the mu opioid receptor system and induce potentially lethal respiratory depression . The challenge in opioid research is to find a safe pain therapy with analgesic properties but no respir... | When it comes to treating severe pain , a doctor’s arsenal is somewhat limited: synthetic or natural opioids such as morphine , fentanyl or oxycodone are often one of the only options available to relieve patients . Yet these compounds can make breathing slower and shallower , quickly depriving the body of oxygen and c... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"medicine",
"neuroscience"
] | 2021 | Respiratory depression and analgesia by opioid drugs in freely behaving larval zebrafish |
Distinctions between cell types underpin organizational principles for nervous system function . Functional variation also exists between neurons of the same type . This is exemplified by correspondence between grid cell spatial scales and the synaptic integrative properties of stellate cells ( SCs ) in the medial ento... | The brain consists of many types of cells that are specialised to perform different tasks . This is similar to how different groups of people will have different responsibilities in a large company . But within each group with the same role , individual employees will also do their jobs in different ways . Does the sam... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2020 | Inter- and intra-animal variation in the integrative properties of stellate cells in the medial entorhinal cortex |
In all animals , sleep pressure is under continuous tight regulation . It is universally accepted that this regulation arises from a two-process model , integrating both a circadian and a homeostatic controller . Here we explore the role of environmental social signals as a third , parallel controller of sleep homeosta... | Humans spend one-third of their lifetime sleeping , but why we ( and other animals ) need to sleep remains an unresolved mystery of biology . Our desire to sleep changes depending on how much sleep we’ve already had . If we’ve had a long nap during the day , we may find it harder to fall asleep at night; conversely , i... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"computational",
"and",
"systems",
"biology",
"neuroscience"
] | 2017 | Regulation of sleep homeostasis by sexual arousal |
In diverse bacterial species , the global regulator Hfq contributes to post-transcriptional networks that control expression of numerous genes . Hfq of the opportunistic pathogen Pseudomonas aeruginosa inhibits translation of target transcripts by forming a regulatory complex with the catabolite repression protein Crc ... | Living things can adapt rapidly to changes in their surroundings by switching whole groups of genes on and off . These responses must be controlled carefully , and they are often coordinated by regulatory proteins working together . Within a cell , the coded information in genes is copied to create molecules called mRN... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2019 | Architectural principles for Hfq/Crc-mediated regulation of gene expression |
Vertebrate photoreceptors are among the most metabolically active cells , exhibiting a high rate of ATP consumption . This is coupled with a high anabolic demand , necessitated by the diurnal turnover of a specialized membrane-rich organelle , the outer segment , which is the primary site of phototransduction . How pho... | Living cells need building materials and energy to grow and carry out their activities . Most cells in the body use sugars like glucose for these purposes . In a process known as glycolysis , cells break down glucose into molecules that are eventually converted to carbon dioxide and water to form the chemical ATP – the... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology",
"neuroscience"
] | 2017 | Glycolytic reliance promotes anabolism in photoreceptors |
Kinesin-12 motors are a little studied branch of the kinesin superfamily with the human protein ( Kif15 ) implicated in spindle mechanics and chromosome movement . In this study , we reconstitute full-length hKif15 and its microtubule-targeting factor hTpx2 in vitro to gain insight into the motors mode of operation . W... | Before a cell can divide , it produces an extra copy of all its chromosomes , and it must then ensure that each daughter cell ends up with one copy of each chromosome . During the division process , a structure called the spindle forms in the cell . This spindle is made of thread-like extensions called microtubules tha... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Material",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"cell",
"biology"
] | 2014 | The Kinesin-12 Kif15 is a processive track-switching tetramer |
Various TRP channels act as polymodal sensors of thermal and chemical stimuli , but the mechanisms whereby chemical ligands impact on TRP channel gating are poorly understood . Here we show that AITC ( allyl isothiocyanate; mustard oil ) and menthol represent two distinct types of ligands at the mammalian cold sensor T... | Sensory neurons in our skin detect cues from the environment – such as temperature and touch – and pass the information onto other cells in the nervous system . A protein called TRPM8 in sensory neurons is responsible for our ability to detect cool temperatures . TRPM8 sits in the membrane that surrounds the cell and f... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"structural",
"biology",
"and",
"molecular",
"biophysics",
"neuroscience"
] | 2016 | Definition of two agonist types at the mammalian cold-activated channel TRPM8 |
The genome forms specific three-dimensional contacts in response to cellular or environmental conditions . However , it remains largely unknown which proteins specify and mediate such contacts . Here we describe an assay , MAP-C ( Mutation Analysis in Pools by Chromosome conformation capture ) , that simultaneously cha... | Inside cells , genetic information is stored within molecules of DNA that are folded into three-dimensional structures known as chromosomes . Each fold in a chromosome forms when two points on a single DNA molecule link together to make a loop . DNA in two different chromosomes can also form links with each other ( kno... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"chromosomes",
"and",
"gene",
"expression",
"genetics",
"and",
"genomics"
] | 2019 | A combination of transcription factors mediates inducible interchromosomal contacts |
Olfactory associative learning in Drosophila is mediated by synaptic plasticity between the Kenyon cells of the mushroom body and their output neurons . Both Kenyon cells and their inputs from projection neurons are cholinergic , yet little is known about the physiological function of muscarinic acetylcholine receptors... | We can learn a surprising amount about how the brain forms memories by studying the humble fruit fly . These insects can learn to associate odors with positive or negative experiences , allowing them to then seek out ‘rewarded’ odors and avoid ‘punished’ ones . This association takes place in a brain region called the ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2019 | Inhibitory muscarinic acetylcholine receptors enhance aversive olfactory learning in adult Drosophila |
MHC class I-related molecule MR1 presents riboflavin- and folate-related metabolites to mucosal-associated invariant T cells , but it is unknown whether MR1 can present alternative antigens to other T cell lineages . In healthy individuals we identified MR1-restricted T cells ( named MR1T cells ) displaying diverse TCR... | White blood cells called T cells recognize germs and infected cells , and get rid of other cells in the body that look different to healthy cells – for example , tumor cells . These activities all depend on a molecule called the T cell receptor ( or TCR for short ) , which is found on the surface of the T cells . Each ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"immunology",
"and",
"inflammation"
] | 2017 | Functionally diverse human T cells recognize non-microbial antigens presented by MR1 |
We present results from a longitudinal study conducted over 10 years in a sample of 126 8–33 year olds demonstrating that adolescent development of working memory is supported by decreased variability in the amplitude of expression of whole brain states of task-related activity . fMRI analyses reveal that putative gain... | Adolescence is a period of change: physically , socially and intellectually . During the teenage years , the brain undergoes changes in structure and connectivity that lead to improvements in areas such as self-control , social skills and cognition . Adolescence is also a time during which cognitive skills , such as pr... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2017 | The expression of established cognitive brain states stabilizes with working memory development |
Uveitis describes a heterogeneous group of inflammatory eye diseases characterized by infiltration of leukocytes into the uveal tissues . Uveitis associated with the HLA haplotype B27 ( HLA-B27 ) is a common subtype of uveitis and a prototypical ocular immune-mediated disease . Local immune mechanisms driving human uve... | Uveitis is a form of inflammation in the eye . It can occur in response to infection , or when the immune system mistakenly attacks the eye , in what is known as autoimmune uveitis . In approximately 80 percent of cases , the front part of the eye is affected . During an inflammatory episode , the liquid inside the fro... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"immunology",
"and",
"inflammation"
] | 2021 | Intraocular dendritic cells characterize HLA-B27-associated acute anterior uveitis |
The introduction of direct electron detectors with higher detective quantum efficiency and fast read-out marks the beginning of a new era in electron cryo-microscopy . Using the FEI Falcon II direct electron detector in video mode , we have reconstructed a map at 3 . 36 Å resolution of the 1 . 2 MDa F420-reducing hydro... | Many microbes rely on enzymes known as hydrogenases to catalyse the metabolic reactions that generate energy . These enzymes cleave hydrogen molecules to release electrons that go on to participate in further reactions . In order to fully understand how hydrogenases and other enzymes work it is necessary to work out th... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2014 | Atomic model of the F420-reducing [NiFe] hydrogenase by electron cryo-microscopy using a direct electron detector |
Comprehensively elucidating the molecular mechanisms of human immunodeficiency virus type 1 ( HIV-1 ) latency is a priority to achieve a functional cure . As current 'shock' agents failed to efficiently reactivate the latent reservoir , it is important to discover new targets for developing more efficient latency-rever... | The human immunodeficiency virus-1 , or HIV-1 , infects certain human cells , including white blood cells . One reason the infection is incurable is because the virus can integrate its genetic information into its host , and essentially ‘sleep’ within the host cell , a process called latency . This helps to hide HIV-1 ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"microbiology",
"and",
"infectious",
"disease"
] | 2019 | TRIM28 promotes HIV-1 latency by SUMOylating CDK9 and inhibiting P-TEFb |
The only property of reinforcement insects are commonly thought to learn about is its value . We show that larval Drosophila not only remember the value of reinforcement ( How much ? ) , but also its quality ( What ? ) . This is demonstrated both within the appetitive domain by using sugar vs amino acid as different re... | Actions have consequences; positive consequences or rewards make it more likely that a behavior will be repeated , while negative consequences or punishments can stop a behavior occurring again . Neuroscientists commonly refer to such rewards and punishments as ‘reinforcement’ . Fruit flies that are given a reward of s... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"short",
"report",
"neuroscience"
] | 2015 | Learning the specific quality of taste reinforcement in larval Drosophila |
Catching primal functional changes in early , ‘very far from disease onset’ ( VFDO ) stages of Huntington’s disease is likely to be the key to a successful therapy . Focusing on VFDO stages , we assessed neuronal microcircuits in premanifest Hdh150 knock-in mice . Employing in vivo two-photon Ca2+ imaging , we revealed... | Huntington’s disease is a devastating brain disorder that causes severe mood disorders , problems with moving , and dementia . Most people develop the condition between their thirties and fifties , and die a decade or two after the symptoms first appear . The disease emerges because of a mutation in the gene for the Hu... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2018 | Metformin reverses early cortical network dysfunction and behavior changes in Huntington’s disease |
To monitor nitrate and peptide transport activity in vivo , we converted the dual-affinity nitrate transceptor CHL1/NRT1 . 1/NPF6 . 3 and four related oligopeptide transporters PTR1 , 2 , 4 , and 5 into fluorescence activity sensors ( NiTrac1 , PepTrac ) . Substrate addition to yeast expressing transporter fusions with... | About 1% of global energy output is used to produce nitrogen-enriched fertiliser to improve crop yields , but much of this energy is wasted because plants absorb only a fraction of the nitrogen that is applied as fertiliser . Even worse , the excess nitrogen leaches into water sources , poisoning the environment and ca... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2014 | Fluorescent sensors for activity and regulation of the nitrate transceptor CHL1/NRT1.1 and oligopeptide transporters |
The assembly and maintenance of all cilia and flagella require intraflagellar transport ( IFT ) along the axoneme . IFT has been implicated in sensory and motile ciliary functions , but the mechanisms of this relationship remain unclear . Here , we used Chlamydomonas flagellar surface motility ( FSM ) as a model to tes... | Cilia and flagella protrude like bristles from the cell surface . They share the same basic ‘9+2’ axoneme structure , being made up of nine microtubule doublets that surround a central pair of singlet microtubules . Flagella are generally involved in cell propulsion , whereas motile cilia help to move fluids over cell ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology"
] | 2013 | Intraflagellar transport drives flagellar surface motility |
We show that multiple , functionally specialized cohesin complexes mediate the establishment and two-step release of sister chromatid cohesion that underlies the production of haploid gametes . In C . elegans , the kleisin subunits REC-8 and COH-3/4 differ between meiotic cohesins and endow them with distinctive proper... | Most plant and animal cells have a pair of each chromosome: one copy is inherited from the father , the other from the mother . When a cell divides , each daughter cell must receive a copy of all of the original cell's genetic information . To this end , the chromosomes are replicated to form so-called ‘sister chromati... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"chromosomes",
"and",
"gene",
"expression",
"cell",
"biology"
] | 2014 | Divergent kleisin subunits of cohesin specify mechanisms to tether and release meiotic chromosomes |
Rift Valley fever phlebovirus ( RVFV ) is a clinically and economically important pathogen increasingly likely to cause widespread epidemics . RVFV virulence depends on the interferon antagonist non-structural protein ( NSs ) , which remains poorly characterized . We identified a stable core domain of RVFV NSs ( residu... | Rift Valley fever phlebovirus ( RVFV ) is a virus of humans and livestock , transmitted by mosquitos and contact with infected animals . Infection can cause severe disease , including hemorrhagic fever , and may lead to death . Historically , the virus was only found in central Africa but it has spread for instance to ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"structural",
"biology",
"and",
"molecular",
"biophysics",
"microbiology",
"and",
"infectious",
"disease"
] | 2017 | Rift Valley fever phlebovirus NSs protein core domain structure suggests molecular basis for nuclear filaments |
Memory , on multiple timescales , is critical to our ability to discover the structure of our surroundings , and efficiently interact with the environment . We combined behavioural manipulation and modelling to investigate the dynamics of memory formation for rarely reoccurring acoustic patterns . In a series of experi... | Patterns of sound – such as the noise of footsteps approaching or a person speaking – often provide valuable information . To recognize these patterns , our memory must hold each part of the sound sequence long enough to perceive how they fit together . This ability is necessary in many situations: from discriminating ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2020 | Long-term implicit memory for sequential auditory patterns in humans |
Haploinsufficiency of the melanocortin-4 receptor , the most common monogenetic obesity syndrome in humans , is associated with a reduction in autonomic tone , bradycardia , and incidence of obesity-associated hypertension . Thus , it has been assumed that melanocortin obesity syndrome may be protective with respect to... | Mutations in the gene that encodes a protein called the melanocortin-4 receptor are the most common genetic cause of early onset obesity in children . These mutations occur in about 1 in 1 , 500 people . The melanocortin-4 receptor is mostly found in the brain where it helps to balance how much a person eats with how m... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"medicine"
] | 2017 | Loss of the melanocortin-4 receptor in mice causes dilated cardiomyopathy |
The ESCRT machinery along with the AAA+ ATPase Vps4 drive membrane scission for trafficking into multivesicular bodies in the endocytic pathway and for the topologically related processes of viral budding and cytokinesis , but how they accomplish this remains unclear . Using deep-etch electron microscopy , we find that... | Cells contain compartments called organelles that are enclosed within membranes similar to the plasma membrane that surrounds the cell itself . Cells police the proteins on their membranes and move old or damaged proteins into a type of organelle called an endosome . This involves the membrane folding in on itself to f... | [
"Abstract",
"Introduction",
"Results",
"and",
"discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology"
] | 2014 | Structure of cellular ESCRT-III spirals and their relationship to HIV budding |
The COP9-Signalosome ( CSN ) regulates cullin–RING ubiquitin ligase ( CRL ) activity and assembly by cleaving Nedd8 from cullins . Free CSN is autoinhibited , and it remains unclear how it becomes activated . We combine structural and kinetic analyses to identify mechanisms that contribute to CSN activation and Nedd8 d... | Just like you might clear out the old food in your refrigerator to make room for new groceries , cells constantly break down existing proteins to provide space for new ones . The enzymes that generally carry out the first step of this breakdown process are called ubiquitin ligases and human cells make hundreds of diffe... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"cell",
"biology"
] | 2016 | Structural and kinetic analysis of the COP9-Signalosome activation and the cullin-RING ubiquitin ligase deneddylation cycle |
Some remarkable animal species require an opposite-sex partner for their sexual development but discard the partner’s genome before gamete formation , generating hemi-clonal progeny in a process called hybridogenesis . Here , we discovered a similar phenomenon , termed pseudosexual reproduction , in a basidiomycete hum... | Sexual reproduction enables organisms to recombine their genes to generate progeny that have higher levels of evolutionary fitness . This process requires reproductive cells – like the sperm and egg – to fuse together and mix their two genomes , resulting in offspring that are genetically distinct from their parents . ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"microbiology",
"and",
"infectious",
"disease",
"genetics",
"and",
"genomics"
] | 2021 | Uniparental nuclear inheritance following bisexual mating in fungi |
Neurons have complex electrophysiological properties , however , it is often difficult to determine which properties are the most relevant to neuronal function . By combining current-clamp measurements of electrophysiological properties with multi-variate analysis ( hierarchical clustering , principal component analysi... | The brain contains hundreds of types of neurons , which differ in size and shape , and also in the chemicals that they use to communicate with each other . However , one thing all neurons have in common is that they all carry electrical signals that depend on the flow of ions through specialized channels in the membran... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2014 | Non-linear developmental trajectory of electrical phenotype in rat substantia nigra pars compacta dopaminergic neurons |
The timely transition from neural progenitor to post-mitotic neuron requires down-regulation and loss of the neuronal transcriptional repressor , REST . Here , we have used mice containing a gene trap in the Rest gene , eliminating transcription from all coding exons , to remove REST prematurely from neural progenitors... | In the brain , cells called neurons connect to each other to form complex networks through which information is rapidly processed . These cells start to form in the developing brains of animal embryos when “neural” stem cells divide in a process called neurogenesis . For this process to proceed normally , particular ge... | [
"Abstract",
"Introduction",
"Results",
"Discussion"
] | [
"developmental",
"biology"
] | 2016 | The REST remodeling complex protects genomic integrity during embryonic neurogenesis |
The basidiomycete yeast Rhodosporidium toruloides ( also known as Rhodotorula toruloides ) accumulates high concentrations of lipids and carotenoids from diverse carbon sources . It has great potential as a model for the cellular biology of lipid droplets and for sustainable chemical production . We developed a method ... | The fungus Rhodosporidium toruloides can grow on substances extracted from plant matter that is inedible to humans such as corn stalks , wood pulp , and grasses . Under some growth conditions , the fungus can accumulate massive stores of hydrocarbon-rich fats and pigments . A community of scientists and engineers has b... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"computational",
"and",
"systems",
"biology",
"microbiology",
"and",
"infectious",
"disease"
] | 2018 | Functional genomics of lipid metabolism in the oleaginous yeast Rhodosporidium toruloides |
Disentangling the effect on genomic diversity of natural selection from that of demography is notoriously difficult , but necessary to properly reconstruct the history of species . Here , we use high-quality human genomic data to show that purifying selection at linked sites ( i . e . background selection , BGS ) and G... | Human chromosomes are made up of DNA , which contains about 3 billion ‘letters’ that carry the instructions needed to build and maintain an individual . However , only about 10 percent of the human genome is made up of genes that code for proteins , or have a defined role in the body . The DNA sequence is largely the s... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"genetics",
"and",
"genomics"
] | 2018 | Background selection and biased gene conversion affect more than 95% of the human genome and bias demographic inferences |
The comprehensive understanding of cellular signaling pathways remains a challenge due to multiple layers of regulation that may become evident only when the pathway is probed at different levels or critical nodes are eliminated . To discover regulatory mechanisms in canonical WNT signaling , we conducted a systematic ... | When an embryo is developing , its cells must communicate with one another to coordinate the processes that shape the body’s tissues and organs . Cells often communicate by releasing signaling molecules that engage with proteins called receptors on the surface of other cells . This triggers a series of events that send... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"genetics",
"and",
"genomics"
] | 2016 | Comparative genetic screens in human cells reveal new regulatory mechanisms in WNT signaling |
Hypothalamic oxytocinergic magnocellular neurons have a fascinating ability to release peptide from both their axon terminals and from their dendrites . Existing data indicates that the relationship between somatic activity and dendritic release is not constant , but the mechanisms through which this relationship can b... | Oxytocin is often referred to as a ‘love hormone’ because it can be released during activities such as hugging , snuggling , or sex . Reality , of course , can be a bit more complicated . In the brain , oxytocin can have powerful and diverse effects on mood , stress , anxiety , and social interactions . In the body it ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2021 | Dendritic osmosensors modulate activity-induced calcium influx in oxytocinergic magnocellular neurons of the mouse PVN |
The occipital cortex of early blind individuals ( EB ) activates during speech processing , challenging the notion of a hard-wired neurobiology of language . But , at what stage of speech processing do occipital regions participate in EB ? Here we demonstrate that parieto-occipital regions in EB enhance their synchroni... | Scientists once thought that certain parts of the brain were hard-wired to process information from specific senses or to perform specific tasks . For example , some had concluded that language processing is built into certain parts of the brain , because the way the brain responds to language is remarkably similar in ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2018 | Neuronal populations in the occipital cortex of the blind synchronize to the temporal dynamics of speech |
Increased mTORC1 signaling from TSC1/TSC2 inactivation is found in cancer and causes tuberous sclerosis complex ( TSC ) . The role of mesenchymal-derived cells in TSC tumorigenesis was investigated through disruption of Tsc2 in craniofacial and limb bud mesenchymal progenitors . Tsc2cKOPrrx1-cre mice had shortened life... | Tuberous sclerosis complex is a genetic condition that causes non-cancerous tumours with lots of blood vessels . It is caused by mutations that inactivate either of two genes known as TSC1 and TSC2 . A signalling molecule called mTOR also contributes to the disease , and drugs that block its activity provide some relie... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cancer",
"biology"
] | 2017 | Tsc2 disruption in mesenchymal progenitors results in tumors with vascular anomalies overexpressing Lgals3 |
The importance of mechanical activity in the regulation of muscle progenitors during chick development has not been investigated . We show that immobilization decreases NOTCH activity and mimics a NOTCH loss-of-function phenotype , a reduction in the number of muscle progenitors and increased differentiation . Ligand-i... | Skeletal muscle is attached to the skeleton and allows the body to move . Making a new muscle , or repairing an existing one , relies on stem cells that are present inside muscles . A major goal of skeletal muscle research is to understand the signals that regulate the abilities of muscle stem cells to divide and give ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology"
] | 2016 | Muscle contraction is required to maintain the pool of muscle progenitors via YAP and NOTCH during fetal myogenesis |
Deep transcriptome sequencing has revealed the existence of many transcripts that lack long or conserved open reading frames ( ORFs ) and which have been termed long non-coding RNAs ( lncRNAs ) . The vast majority of lncRNAs are lineage-specific and do not yet have a known function . In this study , we test the hypothe... | Despite the terms being largely interchangeable in modern language , ‘DNA’ and ‘gene’ do not mean the same thing . A gene is made of DNA and contains the instructions to make a protein , and it is the protein that performs the function of the gene . However , cells in the body also contain DNA that does not form genes ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"evolutionary",
"biology"
] | 2014 | Long non-coding RNAs as a source of new peptides |
Plant cells divide using the phragmoplast , a microtubule-based structure that directs vesicles secretion to the nascent cell plate . The phragmoplast forms at the cell center and expands to reach a specified site at the cell periphery , tens or hundreds of microns distant . The mechanism responsible for guiding the ph... | Plant cells are surrounded by a membrane , which controls what enters and leaves the cell , and a cell wall , which provides rigidity . When a plant cell is ready to divide , it needs to produce two new cell membranes , with a new cell wall sandwiched between them , to split the cell contents into two daughter cells . ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"plant",
"biology",
"cell",
"biology"
] | 2014 | Myosin VIII associates with microtubule ends and together with actin plays a role in guiding plant cell division |
We report that the Gm7068 ( CatSpere ) and Tex40 ( CatSperz ) genes encode novel subunits of a 9-subunit CatSper ion channel complex . Targeted disruption of CatSperz reduces CatSper current and sperm rheotactic efficiency in mice , resulting in severe male subfertility . Normally distributed in linear quadrilateral na... | Male mammals ejaculate millions of sperm cells each time they mate with a female . Only a few of these cells manage to travel up the female’s reproductive tract to reach the egg , and usually only one sperm fertilizes it . Freshly ejaculated sperm are incapable of fertilizing eggs and have to undergo several changes wi... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology",
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2017 | CatSperζ regulates the structural continuity of sperm Ca2+ signaling domains and is required for normal fertility |
In an effort to identify human endothelial cell ( EC ) -enriched lncRNAs , ~500 lncRNAs were shown to be highly restricted in primary human ECs . Among them , lncEGFL7OS , located in the opposite strand of the EGFL7/miR-126 gene , is regulated by ETS factors through a bidirectional promoter in ECs . It is enriched in h... | A well-networked supply of blood vessels is essential for delivering nutrients and oxygen to the body . To do so , new blood vessels need to form throughout life , from embryonic development to adult life . This process , known as angiogenesis , also plays a critical role in exercise , menstruation , injury and disease... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology"
] | 2019 | LncEGFL7OS regulates human angiogenesis by interacting with MAX at the EGFL7/miR-126 locus |
The small molecule EMD 57033 has been shown to stimulate the actomyosin ATPase activity and contractility of myofilaments . Here , we show that EMD 57033 binds to an allosteric pocket in the myosin motor domain . EMD 57033-binding protects myosin against heat stress and thermal denaturation . In the presence of EMD 570... | Our muscles contain large numbers of ‘motor proteins’ called myosins . To contract a muscle , many myosin molecules expend energy to ‘walk’ along a filament made from another molecule , called actin , and generate a pulling force . Like other proteins , myosins must fold into the correct shape to work , but high temper... | [
"Abstract",
"Introduction",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology",
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2014 | Small molecule-mediated refolding and activation of myosin motor function |
Multidrug ATP binding cassette ( ABC ) exporters are ubiquitous ABC transporters that extrude cytotoxic molecules across cell membranes . Despite recent progress in structure determination of these transporters , the conformational motion that transduces the energy of ATP hydrolysis to the work of substrate translocati... | Cells are surrounded by a membrane that acts like a barrier to many molecules . This membrane either stops molecules from entering or exiting the cell , or at least slows their movement . However , it is important that cells can remove some molecules , such as toxins , and that nutrients and certain other molecules can... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2014 | Conformational dynamics of the nucleotide binding domains and the power stroke of a heterodimeric ABC transporter |
The majority of mammalian promoters are CpG islands; regions of high CG density that require protection from DNA methylation to be functional . Importantly , how sequence architecture mediates this unmethylated state remains unclear . To address this question in a comprehensive manner , we developed a method to interro... | Regions of DNA called genes produce the proteins and other molecules that are essential for life . The act of making these molecules is known as gene expression , and being able to switch this process on and off allows cells to adapt to changing conditions . For example , some genes may be turned on in response to inju... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"chromosomes",
"and",
"gene",
"expression",
"genetics",
"and",
"genomics"
] | 2014 | High-throughput engineering of a mammalian genome reveals building principles of methylation states at CG rich regions |
Ribosomal RNA transcription mediated by RNA polymerase I represents the rate-limiting step in ribosome biogenesis . In eukaryotic cells , nutrients and growth factors regulate ribosomal RNA transcription through various key factors coupled to cell growth . We show here in mature adipocytes , ribosomal transcription can... | Obesity can cause several other health conditions to develop . Type 2 diabetes is one such condition , which arises in part because fat cells become unable to store excess fats . This makes certain tissues in the body less sensitive to the hormone insulin , and so the individual is less able to adapt to changing nutrie... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"cell",
"biology"
] | 2016 | PTRF/Cavin-1 promotes efficient ribosomal RNA transcription in response to metabolic challenges |
Microglia are brain-resident macrophages that function as the first line of defense in brain . Embryonic microglial precursors originate in peripheral mesoderm and migrate into the brain during development . However , the mechanism by which they colonize the brain is incompletely understood . The retina is one of the f... | The immune system is comprised of many different cells which protect our bodies from infection and other illnesses . The brain contains its own population of immune cells called microglia . Unlike neurons , these cells form outside the brain during development . They then travel to the brain and colonize specific regio... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"neuroscience"
] | 2021 | Mechanisms underlying microglial colonization of developing neural retina in zebrafish |
How producers of public goods persist in microbial communities is a major question in evolutionary biology . Cooperation is evolutionarily unstable , since cheating strains can reproduce quicker and take over . Spatial structure has been shown to be a robust mechanism for the evolution of cooperation . Here we study ho... | According to the principle of the ‘survival of the fittest’ , selfish individuals should be better off compared to peers that cooperate with each other . Indeed , even though a population of organisms benefits from working together , selfish members can exploit the cooperative behavior of others without doing their par... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"evolutionary",
"biology",
"computational",
"and",
"systems",
"biology"
] | 2018 | Shearing in flow environment promotes evolution of social behavior in microbial populations |
Detachment of newborn neurons from the neuroepithelium is required for correct neuronal architecture and functional circuitry . This process , also known as delamination , involves adherens-junction disassembly and acto-myosin-mediated abscission , during which the centrosome is retained while apical/ciliary membranes ... | The brain and spinal cord begin as a tube that runs the length of the developing embryo . This tube made from cells called neural progenitors , which can divide to generate adult nerve cells . As nerve cells are born they detach from their neighbours , in a process called delamination before migrating away . Though the... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology"
] | 2017 | Inter-dependent apical microtubule and actin dynamics orchestrate centrosome retention and neuronal delamination |
Local regulation of synaptic efficacy is thought to be important for proper networking of neurons and memory formation . Dysregulation of global translation influences long-term memory in mice , but the relevance of the regulation specific for local translation by RNA granules remains elusive . Here , we demonstrate ro... | Messages pass from one nerve cell to the next across gaps called synapses . The first neuron releases chemical signals from the end of its long , thin nerve fiber . The second receives the message at receptors on branching structures known as dendrites . Each connection has a corresponding bump called a dendritic spine... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology",
"neuroscience"
] | 2017 | RNG105/caprin1, an RNA granule protein for dendritic mRNA localization, is essential for long-term memory formation |
Cellular adhesion is a key ingredient to sustain collective functions of microbial aggregates . Here , we investigate the evolutionary origins of adhesion and the emergence of groups of genealogically unrelated cells with a game-theoretical model . The considered adhesiveness trait is costly , continuous and affects bo... | Throughout the living world , organisms work together in groups and help each other to survive . Indeed , multicellular organisms such as plants and animals owe their existence to cooperation . Life on Earth was initially made up of single cells , some of which evolved the ability to stick to each other and work togeth... | [
"Abstract",
"1",
"Introduction",
"2",
"Adhesiveness",
"as",
"a",
"quantitative",
"trait",
"affecting",
"group",
"formation",
"and",
"function",
"3",
"Adaptive",
"dynamics",
"of",
"adhesiveness",
"4",
"The",
"evolution",
"of",
"adhesiveness",
"by",
"attachment",
"5... | [
"evolutionary",
"biology",
"computational",
"and",
"systems",
"biology"
] | 2015 | The evolution of adhesiveness as a social adaptation |
The phylogenetic placement of the morphologically simple placozoans is crucial to understanding the evolution of complex animal traits . Here , we examine the influence of adding new genomes from placozoans to a large dataset designed to study the deepest splits in the animal phylogeny . Using site-heterogeneous substi... | Filter-feeding sponges and tiny gliding , pancake-like animals called placozoans are the only two major groups of animals that lack muscles , nerves and an internal gut . Sponges have historically been seen as the first to have branched off in animal phylogeny – the family tree of living organisms that shows how specie... | [
"Abstract",
"Introduction",
"Results",
"and",
"discussion",
"Materials",
"and",
"methods"
] | [
"evolutionary",
"biology",
"short",
"report"
] | 2018 | Support for a clade of Placozoa and Cnidaria in genes with minimal compositional bias |
The sense of smell in vertebrates is detected by specialized sensory neurons derived from the peripheral nervous system . Classically , it has been presumed that the olfactory placode forms all olfactory sensory neurons . In contrast , we show that the cranial neural crest is the primary source of microvillous sensory ... | Neurons have crucial roles in both the peripheral and central nervous systems . The role of the neurons in the sensory organs ( the eyes , ears , and nose ) is to sense stimuli—including light , sound , and odor—and transmit this sensory information to the neurons of the central nervous system for processing . The firs... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"neuroscience"
] | 2013 | Sox10-dependent neural crest origin of olfactory microvillous neurons in zebrafish |
Transcription factor IIH ( TFIIH ) is a heterodecameric protein complex critical for transcription initiation by RNA polymerase II and nucleotide excision DNA repair . The TFIIH core complex is sufficient for its repair functions and harbors the XPB and XPD DNA-dependent ATPase/helicase subunits , which are affected by... | The DNA inside a cell carries the instructions it needs to survive . Living cells use many different proteins to read and maintain this store of information . For example , a group of ten proteins collectively called TFIIH is often involved in both reading and repairing the DNA . Proteins in the TFIIH complex include p... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2019 | The complete structure of the human TFIIH core complex |
Neither the disease mechanism nor treatments for COVID-19 are currently known . Here , we present a novel molecular mechanism for COVID-19 that provides therapeutic intervention points that can be addressed with existing FDA-approved pharmaceuticals . The entry point for the virus is ACE2 , which is a component of the ... | In late 2019 , a new virus named SARS-CoV-2 , which causes a disease in humans called COVID-19 , emerged in China and quickly spread around the world . Many individuals infected with the virus develop only mild , symptoms including a cough , high temperature and loss of sense of smell; while others may develop no sympt... | [
"Abstract",
"Introduction",
"Results",
"and",
"discussion",
"Materials",
"and",
"methods"
] | [
"short",
"report",
"medicine",
"computational",
"and",
"systems",
"biology"
] | 2020 | A mechanistic model and therapeutic interventions for COVID-19 involving a RAS-mediated bradykinin storm |
The cytomatrix at the active zone ( CAZ ) is a macromolecular complex that facilitates the supply of release-ready synaptic vesicles to support neurotransmitter release at synapses . To reveal the dynamics of this supply process in living synapses , we used super-resolution imaging to track single vesicles at voltage-c... | Neurons communicate with one another through junctions known as synapses . When a neuron is activated , it triggers the release of chemicals called neurotransmitters at the synapse , which bind to and activate neighbouring neurons . Neurons involved in vision , sound and balance contain “ribbon” synapses , which are ab... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2016 | Nanoscale dynamics of synaptic vesicle trafficking and fusion at the presynaptic active zone |
Hutchinson-Gilford progeria ( HGPS ) is a premature ageing syndrome caused by a mutation in LMNA , resulting in a truncated form of lamin A called progerin . Progerin triggers loss of the heterochromatic marker H3K27me3 , and premature senescence , which is prevented by telomerase . However , the mechanism how progerin... | Hutchinson-Gilford Progeria Syndrome ( HGPS ) is a rare genetic disease in which individuals age prematurely . Newborns appear normal at birth , but start ageing rapidly when they are around a year old . Symptoms of the disease include stunted growth and joint stiffness , and individuals often die of heart failure duri... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"chromosomes",
"and",
"gene",
"expression"
] | 2015 | Progerin reduces LAP2α-telomere association in Hutchinson-Gilford progeria |
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