Molecular insights into RNA and DNA helicase evolution from the determinants of specificity for a DEAD-box RNA helicase.

abstract：:Serotonin (5-HT) is associated with mood and motivation but the function of endogenous 5-HT remains controversial. Here, we studied the impact of phasic optogenetic activation of 5-HT neurons in mice over time scales from seconds to weeks. We found that activating dorsal raphe nucleus (DRN) 5-HT neurons induced a stro...

journal_title：eLife

authors： Correia PA,Lottem E,Banerjee D,Machado AS,Carey MR,Mainen ZF

更新日期：2017-02-14 00:00:00

abstract：:Recently, a small-molecule communication mechanism was discovered in a range of Bacillus-infecting bacteriophages, which these temperate phages use to inform their lysis-lysogeny decision. We present a mathematical model of the ecological and evolutionary dynamics of such viral communication, and show that a communica...

journal_title：eLife

authors： Doekes HM,Mulder GA,Hermsen R

更新日期：2021-01-18 00:00:00

abstract：:An 'interactome' screen of all Drosophila cell-surface and secreted proteins containing immunoglobulin superfamily (IgSF) domains discovered a network formed by paralogs of Beaten Path (Beat) and Sidestep (Side), a ligand-receptor pair that is central to motor axon guidance. Here we describe a new method for interacto...

journal_title：eLife

authors： Li H,Watson A,Olechwier A,Anaya M,Sorooshyari SK,Harnett DP,Lee HP,Vielmetter J,Fares MA,Garcia KC,Özkan E,Labrador JP,Zinn K

更新日期：2017-08-15 00:00:00

abstract：:Apical secretion from epithelial tubes of the Drosophila embryo is mediated by apical F-actin cables generated by the formin-family protein Diaphanous (Dia). Apical localization and activity of Dia are at the core of restricting F-actin formation to the correct membrane domain. Here we identify the mechanisms that tar...

journal_title：eLife

authors： Rousso T,Shewan AM,Mostov KE,Schejter ED,Shilo BZ

更新日期：2013-07-09 00:00:00

abstract：:Establishing a link between the nonsense-mediated decay pathway and a gene associated with programmed cell death could explain why this pathway is essential in most, but not all, eukaryotes. ...

journal_title：eLife

authors： Saveanu C,Jacquier A

更新日期：2016-04-27 00:00:00

abstract：:Cranial neural crest (CNC) cells give rise to bone, cartilage, tendons, and ligaments of the vertebrate craniofacial musculoskeletal complex, as well as regulate mesoderm-derived craniofacial muscle development through cell-cell interactions. Using the mouse soft palate as a model, we performed an unbiased single-cell...

journal_title：eLife

authors： Han X,Feng J,Guo T,Loh YE,Yuan Y,Ho TV,Cho CK,Li J,Jing J,Janeckova E,He J,Pei F,Bi J,Song B,Chai Y

更新日期：2021-01-22 00:00:00

abstract：:In addition to their role in desensitization and internalization of G protein-coupled receptors (GPCRs), β-arrestins are essential scaffolds linking GPCRs to Erk1/2 signaling. However, their role in GPCR-operated Erk1/2 activation differs between GPCRs and the underlying mechanism remains poorly characterized. Here, w...

journal_title：eLife

authors： Cassier E,Gallay N,Bourquard T,Claeysen S,Bockaert J,Crépieux P,Poupon A,Reiter E,Marin P,Vandermoere F

更新日期：2017-02-07 00:00:00

abstract：:Intergroup conflict contributes to human discrimination and violence, but persists because individuals make costly contributions to their group's fighting capacity. Yet, how group members effectively coordinate their contributions during intergroup conflict remains poorly understood. Here, we examine the role of oxyto...

journal_title：eLife

authors： Zhang H,Gross J,De Dreu C,Ma Y

更新日期：2019-01-25 00:00:00

abstract：:Using a common analysis pipeline to compare data from three major lineages of complex eukaryotes reveals that transcription seems to evolve at a common rate. ...

journal_title：eLife

authors： Odom DT

更新日期：2016-02-11 00:00:00

abstract：:The >800 human G protein-coupled receptors (GPCRs) are responsible for transducing diverse chemical stimuli to alter cell state- and are the largest class of drug targets. Their myriad structural conformations and various modes of signaling make it challenging to understand their structure and function. Here, we devel...

journal_title：eLife

authors： Jones EM,Lubock NB,Venkatakrishnan AJ,Wang J,Tseng AM,Paggi JM,Latorraca NR,Cancilla D,Satyadi M,Davis JE,Babu MM,Dror RO,Kosuri S

更新日期：2020-10-21 00:00:00

abstract：:We aimed to study time trends and levels of mean total cholesterol and lipid fractions, and dyslipidaemias prevalence in Latin America and the Caribbean (LAC). Systematic-review and meta-analysis of population-based studies in which lipid (total cholesterol [TC; 86 studies; 168,553 people], HDL-Cholesterol [HDL-C; 84 ...

journal_title：eLife

authors： Carrillo-Larco RM,Benites-Moya CJ,Anza-Ramirez C,Albitres-Flores L,Sánchez-Velazco D,Pacheco-Barrios N,Bernabe-Ortiz A

更新日期：2020-08-18 00:00:00

abstract：:Striatal dysfunction plays an important role in dystonia, but the striatal cell types that contribute to abnormal movements are poorly defined. We demonstrate that conditional deletion of the DYT1 dystonia protein torsinA in embryonic progenitors of forebrain cholinergic and GABAergic neurons causes dystonic-like twis...

journal_title：eLife

authors： Pappas SS,Darr K,Holley SM,Cepeda C,Mabrouk OS,Wong JM,LeWitt TM,Paudel R,Houlden H,Kennedy RT,Levine MS,Dauer WT

更新日期：2015-06-08 00:00:00

abstract：:Accurate protein localization is crucial to generate and maintain organization in all cells. Achieving accuracy is challenging, as the molecular signals that dictate a protein's cellular destination are often promiscuous. A salient example is the targeting of an essential class of tail-anchored (TA) proteins, whose so...

journal_title：eLife

authors： Rao M,Okreglak V,Chio US,Cho H,Walter P,Shan SO

更新日期：2016-12-07 00:00:00

abstract：:Mitogen-activated protein kinases (MAPK) such as p38 and the c-Jun N-terminal kinases (JNKs) are activated during the cellular response to stress signals. Their activity is regulated by the MAPK-phosphatase 1 (DUSP1), a key component of the anti-inflammatory response. Stress kinases are well-described elements of the ...

journal_title：eLife

authors： Celaya AM,Sánchez-Pérez I,Bermúdez-Muñoz JM,Rodríguez-de la Rosa L,Pintado-Berninches L,Perona R,Murillo-Cuesta S,Varela-Nieto I

更新日期：2019-04-02 00:00:00

abstract：:In complex biological systems, simple individual-level behavioral rules can give rise to emergent group-level behavior. While collective behavior has been well studied in cells and larger organisms, the mesoscopic scale is less understood, as it is unclear which sensory inputs and physical processes matter a priori. H...

journal_title：eLife

authors： Ding SS,Schumacher LJ,Javer AE,Endres RG,Brown AE

更新日期：2019-04-25 00:00:00

abstract：:Nutritional regulation by ants emerges from a distributed process: food is collected by a small fraction of workers, stored within the crops of individuals, and spread via local ant-to-ant interactions. The precise individual-level underpinnings of this collective regulation have remained unclear mainly due to difficu...

journal_title：eLife

authors： Greenwald EE,Baltiansky L,Feinerman O

更新日期：2018-03-06 00:00:00

abstract：:Protein synthesis ends when a ribosome reaches an mRNA stop codon. Release factors (RFs) decode the stop codon, hydrolyze peptidyl-tRNA to release the nascent protein, and then dissociate to allow ribosome recycling. To visualize termination by RF2, we resolved a cryo-EM ensemble of E. coli 70S•RF2 structures at up to...

journal_title：eLife

authors： Svidritskiy E,Demo G,Loveland AB,Xu C,Korostelev AA

更新日期：2019-09-12 00:00:00

abstract：:The diaphragm muscle is essential for breathing in mammals. Its asymmetric elevation during contraction correlates with morphological features suggestive of inherent left-right (L/R) asymmetry. Whether this asymmetry is due to L versus R differences in the muscle or in the phrenic nerve activity is unknown. Here, we h...

journal_title：eLife

authors： Charoy C,Dinvaut S,Chaix Y,Morlé L,Sanyas I,Bozon M,Kindbeiter K,Durand B,Skidmore JM,De Groef L,Seki M,Moons L,Ruhrberg C,Martin JF,Martin DM,Falk J,Castellani V

更新日期：2017-06-22 00:00:00

abstract：:Coronaries are essential for myocardial growth and heart function. Notch is crucial for mouse embryonic angiogenesis, but its role in coronary development remains uncertain. We show Jag1, Dll4 and activated Notch1 receptor expression in sinus venosus (SV) endocardium. Endocardial Jag1 removal blocks SV capillary sprou...

journal_title：eLife

authors： Travisano SI,Oliveira VL,Prados B,Grego-Bessa J,Piñeiro-Sabarís R,Bou V,Gómez MJ,Sánchez-Cabo F,MacGrogan D,de la Pompa JL

更新日期：2019-12-04 00:00:00

abstract：:XMAP215/Stu2/Alp14 proteins accelerate microtubule plus-end polymerization by recruiting tubulins via arrays of tumor overexpressed gene (TOG) domains, yet their mechanism remains unknown. Here, we describe the biochemical and structural basis for TOG arrays in recruiting and polymerizing tubulins. Alp14 binds four tu...

journal_title：eLife

authors： Nithianantham S,Cook BD,Beans M,Guo F,Chang F,Al-Bassam J

更新日期：2018-11-13 00:00:00

abstract：:Motor fatigability emerges when demanding tasks are executed over an extended period of time. Here, we used repetitive low-force movements that cause a gradual reduction in movement speed (or 'motor slowing') to study the central component of fatigability in healthy adults. We show that motor slowing is associated wit...

journal_title：eLife

authors： Bächinger M,Lehner R,Thomas F,Hanimann S,Balsters J,Wenderoth N

更新日期：2019-09-16 00:00:00

abstract：:The central complex is a highly conserved insect brain region composed of morphologically stereotyped neurons that arborize in distinctively shaped substructures. The region is implicated in a wide range of behaviors and several modeling studies have explored its circuit computations. Most studies have relied on assum...

journal_title：eLife

authors： Franconville R,Beron C,Jayaraman V

更新日期：2018-08-20 00:00:00

abstract：:Using FIB-SEM we report the entire synaptic connectome of glomerulus VA1v of the right antennal lobe in Drosophila melanogaster. Within the glomerulus we densely reconstructed all neurons, including hitherto elusive local interneurons. The fruitless-positive, sexually dimorphic VA1v included >11,140 presynaptic sites ...

journal_title：eLife

authors： Horne JA,Langille C,McLin S,Wiederman M,Lu Z,Xu CS,Plaza SM,Scheffer LK,Hess HF,Meinertzhagen IA

更新日期：2018-11-01 00:00:00

abstract：:Cells respond to changes in their environment through signaling networks that modulate cytoskeleton and membrane organization to coordinate cell-cycle progression, polarized cell growth and multicellular development. Here, we define a novel regulatory mechanism by which the motor activity and function of the fission y...

journal_title：eLife

authors： Baker K,Gyamfi IA,Mashanov GI,Molloy JE,Geeves MA,Mulvihill DP

更新日期：2019-09-30 00:00:00

abstract：:miR-128, a brain-enriched microRNA, has been implicated in the control of neurogenesis and synaptogenesis but its potential roles in intervening processes have not been addressed. We show that post-transcriptional mechanisms restrict miR-128 accumulation to post-mitotic neurons during mouse corticogenesis and in adult...

journal_title：eLife

authors： Franzoni E,Booker SA,Parthasarathy S,Rehfeld F,Grosser S,Srivatsa S,Fuchs HR,Tarabykin V,Vida I,Wulczyn FG

更新日期：2015-01-03 00:00:00

abstract：:Yes. ...

journal_title：eLife

authors： Goldstein RE

更新日期：2018-07-23 00:00:00

abstract：:Translation is a core cellular process carried out by a highly conserved macromolecular machine, the ribosome. There has been remarkable evolutionary adaptation of this machine through the addition of eukaryote-specific ribosomal proteins whose individual effects on ribosome function are largely unknown. Here we show ...

journal_title：eLife

authors： Thompson MK,Rojas-Duran MF,Gangaramani P,Gilbert WV

更新日期：2016-04-27 00:00:00

abstract：:Mu-opioid receptors (MORs) are crucial for analgesia by both exogenous and endogenous opioids. However, the distinct mechanisms underlying these two types of opioid analgesia remain largely unknown. Here, we demonstrate that analgesic effects of exogenous and endogenous opioids on inflammatory pain are mediated by MOR...

journal_title：eLife

authors： Zhang XY,Dou YN,Yuan L,Li Q,Zhu YJ,Wang M,Sun YG

更新日期：2020-06-10 00:00:00

abstract：:The canonical action of the p85α regulatory subunit of phosphatidylinositol 3-kinase (PI3K) is to associate with the p110α catalytic subunit to allow stimuli-dependent activation of the PI3K pathway. We elucidate a p110α-independent role of homodimerized p85α in the positive regulation of PTEN stability and activity. ...

journal_title：eLife

authors： Cheung LW,Walkiewicz KW,Besong TM,Guo H,Hawke DH,Arold ST,Mills GB

更新日期：2015-07-29 00:00:00

abstract：:Microbial fitness screens are a key technique in functional genomics. We present an all-in-one solution, pyphe, for automating and improving data analysis pipelines associated with large-scale fitness screens, including image acquisition and quantification, data normalisation, and statistical analysis. Pyphe is versat...

journal_title：eLife

authors： Kamrad S,Rodríguez-López M,Cotobal C,Correia-Melo C,Ralser M,Bähler J

更新日期：2020-06-16 00:00:00