Evolution of substrate specificity in a retained enzyme driven by gene loss.

abstract：:Many organisms lose the capacity to regenerate damaged tissues as they mature. Damaged Drosophila imaginal discs regenerate efficiently early in the third larval instar (L3) but progressively lose this ability. This correlates with reduced damage-responsive expression of multiple genes, including the WNT genes wingles...

journal_title：eLife

authors： Harris RE,Setiawan L,Saul J,Hariharan IK

更新日期：2016-02-03 00:00:00

abstract：:Signal transduction at vertebrate excitatory synapses involves the rapid activation of AMPA (α-amino-3-hydroxy-5-methyl-4-isoxazole propionate) receptors, glutamate-gated ion channels whose four subunits assemble as a dimer-of-dimers. Technical advances in cryo-electron microscopy brought a slew of full-length structu...

journal_title：eLife

authors： Baranovic J,Plested AJ

更新日期：2018-12-06 00:00:00

abstract：:WNK1, a kinase that controls kidney salt homeostasis, also regulates adhesion and migration in CD4+ T cells. Wnk1 is highly expressed in thymocytes, and since migration is important for thymocyte maturation, we investigated a role for WNK1 in mouse thymocyte development. We find that WNK1 is required for the transitio...

journal_title：eLife

authors： Köchl R,Vanes L,Llorian Sopena M,Chakravarty P,Hartweger H,Fountain K,White A,Cowan J,Anderson G,Tybulewicz VL

更新日期：2020-10-14 00:00:00

abstract：:Telomerase extends telomere sequences at chromosomal ends to protect genomic DNA. During this process it must select the correct nucleotide from a pool of nucleotides with various sugars and base pairing properties, which is critically important for the proper capping of telomeric sequences by shelterin. Unfortunately...

journal_title：eLife

authors： Schaich MA,Sanford SL,Welfer GA,Johnson SA,Khoang TH,Opresko PL,Freudenthal BD

更新日期：2020-06-05 00:00:00

abstract：:Meiotic drive is the preferential transmission of a particular allele during sexual reproduction. The phenomenon is observed as spore killing in multiple fungi. In natural populations of Podospora anserina, seven spore killer types (Psks) have been identified through classical genetic analyses. Here we show that the S...

journal_title：eLife

authors： Vogan AA,Ament-Velásquez SL,Granger-Farbos A,Svedberg J,Bastiaans E,Debets AJ,Coustou V,Yvanne H,Clavé C,Saupe SJ,Johannesson H

更新日期：2019-07-26 00:00:00

abstract：:Animals and humans replay neural patterns encoding trajectories through their environment, both whilst they solve decision-making tasks and during rest. Both on-task and off-task replay are believed to contribute to flexible decision making, though how their relative contributions differ remains unclear. We investigat...

journal_title：eLife

authors： Eldar E,Lièvre G,Dayan P,Dolan RJ

更新日期：2020-06-17 00:00:00

abstract：:Chronic endoplasmic reticulum (ER) stress results in toxicity that contributes to multiple human disorders. We report a stress resolution pathway initiated by the nuclear receptor LRH-1 that is independent of known unfolded protein response (UPR) pathways. Like mice lacking primary UPR components, hepatic Lrh-1-null m...

journal_title：eLife

authors： Mamrosh JL,Lee JM,Wagner M,Stambrook PJ,Whitby RJ,Sifers RN,Wu SP,Tsai MJ,Demayo FJ,Moore DD

更新日期：2014-04-15 00:00:00

abstract：:The neural correlates of consciousness are typically sought by comparing the overall brain responses to perceived and unperceived stimuli. However, this comparison may be contaminated by non-specific attention, alerting, performance, and reporting confounds. Here, we pursue a novel approach, tracking the neuronal codi...

journal_title：eLife

authors： Salti M,Monto S,Charles L,King JR,Parkkonen L,Dehaene S

更新日期：2015-05-21 00:00:00

abstract：:To initiate DNA replication, cells first load an MCM helicase double hexamer at origins in a reaction requiring ORC, Cdc6, and Cdt1, also called pre-replicative complex (pre-RC) assembly. The essential mechanistic role of Cdc6 ATP hydrolysis in this reaction is still incompletely understood. Here, we show that althoug...

journal_title：eLife

authors： Chang F,Riera A,Evrin C,Sun J,Li H,Speck C,Weinreich M

更新日期：2015-08-25 00:00:00

abstract：:Bacteria of the genus Shigella cause shigellosis, a severe gastrointestinal disease that is a major cause of diarrhea-associated mortality in humans. Mice are highly resistant to Shigella and the lack of a tractable physiological model of shigellosis has impeded our understanding of this important human disease. Here,...

journal_title：eLife

authors： Mitchell PS,Roncaioli JL,Turcotte EA,Goers L,Chavez RA,Lee AY,Lesser CF,Rauch I,Vance RE

更新日期：2020-10-19 00:00:00

abstract：:Dopamine neurons respond to errors in predicting value-neutral sensory information. These data, combined with causal evidence that dopamine transients support sensory-based associative learning, suggest that the dopamine system signals a multidimensional prediction error. Yet such complexity is not evident in the acti...

journal_title：eLife

authors： Stalnaker TA,Howard JD,Takahashi YK,Gershman SJ,Kahnt T,Schoenbaum G

更新日期：2019-11-01 00:00:00

abstract：:Genomic sequencing has implicated large numbers of genes and de novo mutations as potential disease risk factors. A high throughput in vivo model system is needed to validate gene associations with pathology. We developed a Drosophila-based functional system to screen candidate disease genes identified from Congenital...

journal_title：eLife

authors： Zhu JY,Fu Y,Nettleton M,Richman A,Han Z

更新日期：2017-01-20 00:00:00

abstract：:Major depressive disorder (MDD) is a prevalent illness that can be precipitated by acute or chronic stress. Studies of patients with Wolfram syndrome and carriers have identified Wfs1 mutations as causative for MDD. The medial prefrontal cortex (mPFC) is known to be involved in depression and behavioral resilience, al...

journal_title：eLife

authors： Shrestha P,Mousa A,Heintz N

更新日期：2015-09-15 00:00:00

abstract：:Understanding how genes and experience work in concert to generate phenotypic variability will provide a better understanding of individuality. Here, we considered this in the main olfactory epithelium, a chemosensory structure with over a thousand distinct cell types in mice. We identified a subpopulation of olfactor...

journal_title：eLife

authors： Vihani A,Hu XS,Gundala S,Koyama S,Block E,Matsunami H

更新日期：2020-11-24 00:00:00

abstract：:Negative regulators of adult neurogenesis are of particular interest as targets to enhance neuronal repair, but few have yet been identified. Planarians can regenerate their entire CNS using pluripotent adult stem cells, and this process is robustly regulated to ensure that new neurons are produced in proper abundance...

journal_title：eLife

authors： Karge A,Bonar NA,Wood S,Petersen CP

更新日期：2020-01-20 00:00:00

abstract：:Glucose-6-phosphate dehydrogenase (G6PD) deficiency is believed to confer protection against Plasmodium falciparum malaria, but the precise nature of the protective effecthas proved difficult to define as G6PD deficiency has multiple allelic variants with different effects in males and females, and it has heterogeneou...

journal_title：eLife

authors： Clarke GM,Rockett K,Kivinen K,Hubbart C,Jeffreys AE,Rowlands K,Jallow M,Conway DJ,Bojang KA,Pinder M,Usen S,Sisay-Joof F,Sirugo G,Toure O,Thera MA,Konate S,Sissoko S,Niangaly A,Poudiougou B,Mangano VD,Bougouma EC

更新日期：2017-01-09 00:00:00

abstract：:While host immune receptors detect pathogen-associated molecular patterns to activate immunity, pathogens attempt to deregulate host immunity through secreted effectors. Fungi employ LysM effectors to prevent recognition of cell wall-derived chitin by host immune receptors, although the mechanism to compete for chitin...

journal_title：eLife

authors： Sánchez-Vallet A,Saleem-Batcha R,Kombrink A,Hansen G,Valkenburg DJ,Thomma BP,Mesters JR

更新日期：2013-07-02 00:00:00

abstract：:In most vertebrate neurons, action potentials are triggered at the distal end of the axon initial segment (AIS). Both position and length of the AIS vary across and within neuron types, with activity, development and pathology. What is the impact of AIS geometry on excitability? Direct empirical assessment has proven ...

journal_title：eLife

authors： Goethals S,Brette R

更新日期：2020-03-30 00:00:00

abstract：:Burkholderia thailandensis uses acyl-homoserine lactone-mediated quorum sensing systems to regulate hundreds of genes. Here we show that cell-cell contact-dependent type VI secretion (T6S) toxin-immunity systems are among those activated by quorum sensing in B. thailandensis. We also demonstrate that T6S is required t...

journal_title：eLife

authors： Majerczyk C,Schneider E,Greenberg EP

更新日期：2016-05-16 00:00:00

abstract：:Adhesion molecules hold cells together but also couple cell membranes to a contractile actomyosin network, which limits the expansion of cell contacts. Despite their fundamental role in tissue morphogenesis and tissue homeostasis, how adhesion molecules control cell shapes and cell patterns in tissues remains unclear....

journal_title：eLife

authors： Chan EH,Chavadimane Shivakumar P,Clément R,Laugier E,Lenne PF

更新日期：2017-05-24 00:00:00

abstract：:Yes. ...

journal_title：eLife

authors： Goldstein RE

更新日期：2018-07-23 00:00:00

abstract：:Planar cell polarity (PCP) requires the asymmetric sorting of distinct signaling receptors to distal and proximal surfaces of polarized epithelial cells. We have examined the transport of one PCP signaling protein, Vangl2, from the trans Golgi network (TGN) in mammalian cells. Using siRNA knockdown experiments, we fin...

journal_title：eLife

authors： Guo Y,Zanetti G,Schekman R

更新日期：2013-01-08 00:00:00

abstract：:Perturbation of neuronal activity is key to understanding the brain's functional properties, however, intervention studies typically perturb neurons in a nonspecific manner. Recent optogenetics techniques have enabled patterned perturbations, in which specific patterns of activity can be invoked in identified target n...

journal_title：eLife

authors： Sadeh S,Clopath C

更新日期：2020-02-19 00:00:00

abstract：:When a female fly mates it produces a hormone that increases the size of its midgut and enhances fat metabolism in order to provide the energy needed for reproduction. ...

journal_title：eLife

authors： Flatt T

更新日期：2015-07-28 00:00:00

abstract：:Initiatives to improve research communication can benefit from listening to graduate students, postdocs and newly-independent group leaders. ...

journal_title：eLife

authors： Patterson M,Schekman R

更新日期：2018-03-27 00:00:00

abstract：:How living systems break symmetry in an organized manner is a fundamental question in biology. In wild-type Caenorhabditis elegans zygotes, symmetry breaking during anterior-posterior axis specification is guided by centrosomes, resulting in anterior-directed cortical flows and a single posterior PAR-2 domain. We unco...

journal_title：eLife

authors： Klinkert K,Levernier N,Gross P,Gentili C,von Tobel L,Pierron M,Busso C,Herrman S,Grill SW,Kruse K,Gönczy P

更新日期：2019-02-26 00:00:00

abstract：:Cavin-3 regulates metabolism and cell proliferation by coordinating the activities of growth factor signalling cascades. ...

journal_title：eLife

authors： Whitmarsh AJ

更新日期：2013-09-24 00:00:00

abstract：:New ages for flowstone, sediments and fossil bones from the Dinaledi Chamber are presented. We combined optically stimulated luminescence dating of sediments with U-Th and palaeomagnetic analyses of flowstones to establish that all sediments containing Homo naledi fossils can be allocated to a single stratigraphic ent...

journal_title：eLife

authors： Dirks PH,Roberts EM,Hilbert-Wolf H,Kramers JD,Hawks J,Dosseto A,Duval M,Elliott M,Evans M,Grün R,Hellstrom J,Herries AI,Joannes-Boyau R,Makhubela TV,Placzek CJ,Robbins J,Spandler C,Wiersma J,Woodhead J,Berger LR

更新日期：2017-05-09 00:00:00

abstract：:Yeast cells undergoing the diauxic response show a striking upstream shift in poly(A) site utilization, with increased use of ORF-proximal poly(A) sites resulting in shorter 3' mRNA isoforms for most genes. This altered poly(A) pattern is extremely similar to that observed in cells containing Pol II derivatives with s...

journal_title：eLife

authors： Geisberg JV,Moqtaderi Z,Struhl K

更新日期：2020-08-26 00:00:00

abstract：:Secondary metabolites have a great potential as pharmaceuticals, but there are only a few examples where regulation of gene cluster expression has been correlated with ecological and physiological relevance for the producer. Here, signals, mediators, and biological effects of terrein production were studied in the fun...

journal_title：eLife

authors： Gressler M,Meyer F,Heine D,Hortschansky P,Hertweck C,Brock M

更新日期：2015-07-14 00:00:00