Evolution of complex RNA polymerases: the complete archaeal RNA polymerase structure.

abstract：:The oversupply of postdoctoral scholars relative to available faculty positions has led to calls for better assessment of career outcomes. Here, we report the results of a study of postdoctoral outcomes at the University of California, San Francisco, and suggest that institutions have an obligation to determine where ...

journal_title：PLoS biology

authors： Silva EA,Des Jarlais C,Lindstaedt B,Rotman E,Watkins ES

更新日期：2016-05-06 00:00:00

abstract：:Recent findings suggest that functional brain imaging might be used to identify consciousness in patients diagnosed with persistent vegetative state and minimally conscious state. Michael Rafii and James Brewer discuss the potential for fMRI's wider implementation in clinical practice, and associated caveats. ...

journal_title：PLoS biology

authors： Rafii MS,Brewer JB

更新日期：2010-11-30 00:00:00

abstract：:Pollination is exclusively or mainly animal mediated for 70% to 90% of angiosperm species. Thus, pollinators provide an essential ecosystem service to humankind. However, the impact of human-induced biodiversity loss on the functioning of plant-pollinator interactions has not been tested experimentally. To understand ...

journal_title：PLoS biology

authors： Fontaine C,Dajoz I,Meriguet J,Loreau M

更新日期：2006-01-01 00:00:00

abstract：:The reproducibility crisis triggered worldwide initiatives to improve rigor, reproducibility, and transparency in biomedical research. There are many examples of scientists, journals, and funding agencies adopting responsible research practices. The QUEST (Quality-Ethics-Open Science-Translation) Center offers a uniqu...

journal_title：PLoS biology

authors： Strech D,Weissgerber T,Dirnagl U,QUEST Group.

更新日期：2020-02-11 00:00:00

abstract：:During gestation, uterine smooth muscle cells transition from a state of quiescence to one of contractility, but the molecular mechanisms underlying this transition at a genomic level are not well-known. To better understand these events, we evaluated the epigenetic landscape of the mouse myometrium during the pregnan...

journal_title：PLoS biology

authors： Shchuka VM,Abatti LE,Hou H,Khader N,Dorogin A,Wilson MD,Shynlova O,Mitchell JA

更新日期：2020-07-15 00:00:00

abstract：:STEP (STriatal-Enriched protein tyrosine Phosphatase) is a neuron-specific phosphatase that regulates N-methyl-D-aspartate receptor (NMDAR) and α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor (AMPAR) trafficking, as well as ERK1/2, p38, Fyn, and Pyk2 activity. STEP is overactive in several neuropsychiatr...

journal_title：PLoS biology

authors： Xu J,Chatterjee M,Baguley TD,Brouillette J,Kurup P,Ghosh D,Kanyo J,Zhang Y,Seyb K,Ononenyi C,Foscue E,Anderson GM,Gresack J,Cuny GD,Glicksman MA,Greengard P,Lam TT,Tautz L,Nairn AC,Ellman JA,Lombroso PJ

更新日期：2014-08-05 00:00:00

abstract：:In this Open Highlight, Senior Editor Lauren Richardson features exciting new Open Access research into how species evolve their characteristic traits. ...

journal_title：PLoS biology

authors： Richardson LA

更新日期：2018-10-04 00:00:00

abstract：:Eukaryotic cells respond to accumulation of unfolded proteins in the endoplasmic reticulum (ER) by activating the unfolded protein response (UPR), a signal transduction pathway that communicates between the ER and the nucleus. In yeast, a large set of UPR target genes has been experimentally determined, but the previo...

journal_title：PLoS biology

authors： Patil CK,Li H,Walter P

更新日期：2004-08-01 00:00:00

abstract：:The most consistent result in more than two decades of experimental evolution is that the fitness of populations adapting to a constant environment does not increase indefinitely, but reaches a plateau. Using experimental evolution with bacteriophage, we show here that the converse is also true. In populations small e...

journal_title：PLoS biology

authors： Silander OK,Tenaillon O,Chao L

更新日期：2007-04-01 00:00:00

abstract：:DEAD-box proteins are ubiquitous regulators of RNA biology. While commonly dubbed "helicases," their activities also include duplex annealing, adenosine triphosphate (ATP)-dependent RNA binding, and RNA-protein complex remodeling. Rok1, an essential DEAD-box protein, and its cofactor Rrp5 are required for ribosome ass...

journal_title：PLoS biology

authors： Khoshnevis S,Askenasy I,Johnson MC,Dattolo MD,Young-Erdos CL,Stroupe ME,Karbstein K

更新日期：2016-06-09 00:00:00

abstract：:The improper activation of the Abl tyrosine kinase results in chronic myeloid leukemia (CML). The recognition of an inactive conformation of Abl, in which a catalytically important Asp-Phe-Gly (DFG) motif is flipped by approximately 180 degrees with respect to the active conformation, underlies the specificity of the ...

journal_title：PLoS biology

authors： Levinson NM,Kuchment O,Shen K,Young MA,Koldobskiy M,Karplus M,Cole PA,Kuriyan J

更新日期：2006-05-01 00:00:00

abstract：:The gene GAD2 encoding the glutamic acid decarboxylase enzyme (GAD65) is a positional candidate gene for obesity on Chromosome 10p11-12, a susceptibility locus for morbid obesity in four independent ethnic populations. GAD65 catalyzes the formation of gamma-aminobutyric acid (GABA), which interacts with neuropeptide Y...

journal_title：PLoS biology

authors： Boutin P,Dina C,Vasseur F,Dubois S,Corset L,Séron K,Bekris L,Cabellon J,Neve B,Vasseur-Delannoy V,Chikri M,Charles MA,Clement K,Lernmark A,Froguel P

更新日期：2003-12-01 00:00:00

abstract：:All organisms live in temporally fluctuating environments. Theory predicts that the evolution of deterministic maternal effects (i.e., anticipatory maternal effects or transgenerational phenotypic plasticity) underlies adaptation to environments that fluctuate in a predictably alternating fashion over maternal-offspri...

journal_title：PLoS biology

authors： Dey S,Proulx SR,Teotónio H

更新日期：2016-02-24 00:00:00

abstract：:Mimivirus is the largest known virus whose genome and physical size are comparable to some small bacteria, blurring the boundary between a virus and a cell. Structural studies of Mimivirus have been difficult because of its size and long surface fibers. Here we report the use of enzymatic digestions to remove the surf...

journal_title：PLoS biology

authors： Xiao C,Kuznetsov YG,Sun S,Hafenstein SL,Kostyuchenko VA,Chipman PR,Suzan-Monti M,Raoult D,McPherson A,Rossmann MG

更新日期：2009-04-28 00:00:00

abstract：:In their competition for hosts, parasites with antigens that are novel to the host immune system will be at a competitive advantage. The resulting frequency-dependent selection can structure parasite populations into strains of limited genetic overlap. For the causative agent of malaria, Plasmodium falciparum, the hig...

journal_title：PLoS biology

authors： Pilosof S,He Q,Tiedje KE,Ruybal-Pesántez S,Day KP,Pascual M

更新日期：2019-06-24 00:00:00

abstract：:In nature, Escherichia coli are exposed to harsh and non-ideal growth environments-nutrients may be limiting, and cells are often challenged by oxidative stress. For E. coli cells confronting these realities, there appears to be a link between oxidative stress, methionine availability, and the enzyme that catalyzes th...

journal_title：PLoS biology

authors： Hondorp ER,Matthews RG

更新日期：2004-11-01 00:00:00

abstract：:Low reproducibility rates within life science research undermine cumulative knowledge production and contribute to both delays and costs of therapeutic drug development. An analysis of past studies indicates that the cumulative (total) prevalence of irreproducible preclinical research exceeds 50%, resulting in approxi...

journal_title：PLoS biology

authors： Freedman LP,Cockburn IM,Simcoe TS

更新日期：2015-06-09 00:00:00

abstract：:RNA interference is triggered by double-stranded RNA that is processed into small interfering RNAs (siRNAs) by Dicer enzyme. Endogenously, RNA interference triggers are created from small noncoding RNAs called microRNAs (miRNAs). RNA-induced silencing complexes (RISC) in human cells can be programmed by exogenously in...

journal_title：PLoS biology

authors： Chu CY,Rana TM

更新日期：2006-07-01 00:00:00

abstract：:HAPLESS2 (HAP2) is a broadly conserved, gamete-expressed transmembrane protein that was shown recently to be structurally homologous to viral class II fusion proteins, which initiate fusion with host cells via insertion of fusion loops into the host membrane. However, the functional conformation of the HAP2 fusion loo...

journal_title：PLoS biology

authors： Fedry J,Forcina J,Legrand P,Péhau-Arnaudet G,Haouz A,Johnson M,Rey FA,Krey T

更新日期：2018-08-13 00:00:00

abstract：:Methanotrophs are ubiquitous bacteria that can use the greenhouse gas methane as a sole carbon and energy source for growth, thus playing major roles in global carbon cycles, and in particular, substantially reducing emissions of biologically generated methane to the atmosphere. Despite their importance, and in contra...

journal_title：PLoS biology

authors： Ward N,Larsen Ø,Sakwa J,Bruseth L,Khouri H,Durkin AS,Dimitrov G,Jiang L,Scanlan D,Kang KH,Lewis M,Nelson KE,Methé B,Wu M,Heidelberg JF,Paulsen IT,Fouts D,Ravel J,Tettelin H,Ren Q,Read T,DeBoy RT,Seshadri R,S

更新日期：2004-10-01 00:00:00

abstract：:Newborn granule cells become functionally integrated into the synaptic circuitry of the adult dentate gyrus after a morphological and electrophysiological maturation process. The molecular mechanisms by which immature neurons and the neurites extending from them find their appropriate position and target area remain l...

journal_title：PLoS biology

authors： Jessberger S,Aigner S,Clemenson GD Jr,Toni N,Lie DC,Karalay O,Overall R,Kempermann G,Gage FH

更新日期：2008-11-11 00:00:00

abstract：:The evolution of altruism is a fundamental and enduring puzzle in biology. In a seminal paper Hamilton showed that altruism can be selected for when rb - c > 0, where c is the fitness cost to the altruist, b is the fitness benefit to the beneficiary, and r is their genetic relatedness. While many studies have provided...

journal_title：PLoS biology

authors： Waibel M,Floreano D,Keller L

更新日期：2011-05-01 00:00:00

abstract：:Total internal reflection fluorescence microscopy (TIR-FM) has become a powerful tool for studying clathrin-mediated endocytosis. However, due to difficulties in tracking and quantifying their heterogeneous dynamic behavior, detailed analyses have been restricted to a limited number of selected clathrin-coated pits (C...

journal_title：PLoS biology

authors： Loerke D,Mettlen M,Yarar D,Jaqaman K,Jaqaman H,Danuser G,Schmid SL

更新日期：2009-03-17 00:00:00

abstract：:The human gut harbours a large and genetically diverse population of symbiotic microbes that both feed and protect the host. Evolutionary theory, however, predicts that such genetic diversity can destabilise mutualistic partnerships. How then can the mutualism of the human microbiota be explained? Here we develop an i...

journal_title：PLoS biology

authors： Schluter J,Foster KR

更新日期：2012-01-01 00:00:00

abstract：:From early dinosaurs with as many as nine wrist bones, modern birds evolved to develop only four ossifications. Their identity is uncertain, with different labels used in palaeontology and developmental biology. We examined embryos of several species and studied chicken embryos in detail through a new technique allowi...

journal_title：PLoS biology

authors： Botelho JF,Ossa-Fuentes L,Soto-Acuña S,Smith-Paredes D,Nuñez-León D,Salinas-Saavedra M,Ruiz-Flores M,Vargas AO

更新日期：2014-09-30 00:00:00

abstract：:The ability to use stored information in a highly flexible manner is a defining feature of the declarative memory system. However, the neuronal mechanisms underlying this flexibility are poorly understood. To address this question, we recorded single-unit activity from the hippocampus of 2 nonhuman primates performing...

journal_title：PLoS biology

authors： Yang C,Naya Y

更新日期：2020-11-18 00:00:00

abstract：:The rapid destruction of the planet's biodiversity has prompted the nations of the world to set a target of achieving a significant reduction in the rate of loss of biodiversity by 2010. However, we do not yet have an adequate way of monitoring progress towards achieving this target. Here we present a method for produ...

journal_title：PLoS biology

authors： Butchart SH,Stattersfield AJ,Bennun LA,Shutes SM,Akçakaya HR,Baillie JE,Stuart SN,Hilton-Taylor C,Mace GM

更新日期：2004-12-01 00:00:00

abstract：:Cobalamin-independent methionine synthase (MetE) catalyzes the transfer of a methyl group from methyltetrahydrofolate to L-homocysteine (Hcy) without using an intermediate methyl carrier. Although MetE displays no detectable sequence homology with cobalamin-dependent methionine synthase (MetH), both enzymes require zi...

journal_title：PLoS biology

authors： Pejchal R,Ludwig ML

更新日期：2005-02-01 00:00:00

abstract：:Animals live together with diverse bacteria that can impact their biology. In Drosophila melanogaster, gut-associated bacterial communities are relatively simple in composition but also have a strong impact on host development and physiology. It is generally assumed that gut bacteria in D. melanogaster are transient a...

journal_title：PLoS biology

authors： Pais IS,Valente RS,Sporniak M,Teixeira L

更新日期：2018-07-05 00:00:00

abstract：:While the role of cortical microstructure in organising neural function is well established, it remains unclear how structural constraints can give rise to more flexible elements of cognition. While nonhuman primate research has demonstrated a close structure-function correspondence, the relationship between microstru...

journal_title：PLoS biology

authors： Paquola C,Vos De Wael R,Wagstyl K,Bethlehem RAI,Hong SJ,Seidlitz J,Bullmore ET,Evans AC,Misic B,Margulies DS,Smallwood J,Bernhardt BC

更新日期：2019-05-20 00:00:00