Conservation of hippocampal memory function in rats and humans.

abstract：:Groundwater drawn daily from shallow alluvial sands by millions of wells over large areas of south and southeast Asia exposes an estimated population of over a hundred million people to toxic levels of arsenic. Holocene aquifers are the source of widespread arsenic poisoning across the region. In contrast, Pleistocene...

journal_title：Nature

authors： van Geen A,Bostick BC,Pham TK,Vi ML,Nguyen-Ngoc M,Phu DM,Pham HV,Radloff K,Aziz Z,Mey JL,Stahl MO,Harvey CF,Oates P,Weinman B,Stengel C,Frei F,Kipfer R,Berg M

更新日期：2013-09-12 00:00:00

abstract：:Mutations in the Schizosaccharomyces pombe cdc8 gene impair cytokinesis. Here we clone cdc8+ and find that it encodes a novel tropomyosin. Gene disruption results in lethal arrest of the cell cycle, but spore germination, cell growth, DNA replication and mitosis are all unaffected. Haploid cdc8 gene disruptants are re...

journal_title：Nature

authors： Balasubramanian MK,Helfman DM,Hemmingsen SM

更新日期：1992-11-05 00:00:00

abstract：:Supersolids are exotic materials combining the frictionless flow of a superfluid with the crystal-like periodic density modulation of a solid. The supersolid phase of matter was predicted 50 years ago1-3 for solid helium4-8. Ultracold quantum gases have recently been made to exhibit periodic order typical of a crystal...

journal_title：Nature

authors： Tanzi L,Roccuzzo SM,Lucioni E,Famà F,Fioretti A,Gabbanini C,Modugno G,Recati A,Stringari S

更新日期：2019-10-01 00:00:00

abstract：:Countless millions of people have died from tuberculosis, a chronic infectious disease caused by the tubercle bacillus. The complete genome sequence of the best-characterized strain of Mycobacterium tuberculosis, H37Rv, has been determined and analysed in order to improve our understanding of the biology of this slow-...

journal_title：Nature

authors： Cole ST,Brosch R,Parkhill J,Garnier T,Churcher C,Harris D,Gordon SV,Eiglmeier K,Gas S,Barry CE 3rd,Tekaia F,Badcock K,Basham D,Brown D,Chillingworth T,Connor R,Davies R,Devlin K,Feltwell T,Gentles S,Hamlin N,Hol

更新日期：1998-06-11 00:00:00

abstract：:Atmospheric carbon dioxide concentrations seem to have been several times modern levels during much of the Palaeozoic era (543-248 million years ago), but decreased during the Carboniferous period to concentrations similar to that of today. Given that carbon dioxide is a greenhouse gas, it has been proposed that surfa...

journal_title：Nature

authors： Came RE,Eiler JM,Veizer J,Azmy K,Brand U,Weidman CR

更新日期：2007-09-13 00:00:00

abstract：:Recent studies have shown that short chemically synthesized peptides very often induce antibodies which react with the cognate sequence in the intact folded protein. Since such antibodies react with known regions of proteins, they are of predetermined specificity and offer a precision not previously possible with immu...

journal_title：Nature

authors： Alexander H,Johnson DA,Rosen J,Jerabek L,Green N,Weissman IL,Lerner RA

更新日期：1983-12-15 00:00:00

abstract：:Touch and mechanical pain are first detected at our largest sensory surface, the skin. The cell bodies of sensory neurons that detect such stimuli are located in the dorsal root ganglia, and subtypes of these neurons are specialized to detect specific modalities of mechanical stimuli. Molecules have been identified th...

journal_title：Nature

authors： Wetzel C,Hu J,Riethmacher D,Benckendorff A,Harder L,Eilers A,Moshourab R,Kozlenkov A,Labuz D,Caspani O,Erdmann B,Machelska H,Heppenstall PA,Lewin GR

更新日期：2007-01-11 00:00:00

abstract：:Photoreceptors of the vertebrate retina hyperpolarize in response to light. The hyperpolarization elicited by a brief flash is approximately ten times slower in rods than in cones of the same retina. We have examined the amplification and temporal properties of synaptic transfer of rod and cone signals to a common pos...

journal_title：Nature

authors： Schnapf JL,Copenhagen DR

更新日期：1982-04-29 00:00:00

abstract：:Our current understanding of immunology was largely defined in laboratory mice, partly because they are inbred and genetically homogeneous, can be genetically manipulated, allow kinetic tissue analyses to be carried out from the onset of disease, and permit the use of tractable disease models. Comparably reductionist ...

journal_title：Nature

authors： Beura LK,Hamilton SE,Bi K,Schenkel JM,Odumade OA,Casey KA,Thompson EA,Fraser KA,Rosato PC,Filali-Mouhim A,Sekaly RP,Jenkins MK,Vezys V,Haining WN,Jameson SC,Masopust D

更新日期：2016-04-28 00:00:00

abstract：:Spontaneous mutations are the source of genetic variation required for evolutionary change, and are therefore important for many aspects of evolutionary biology. For example, the divergence between taxa at neutrally evolving sites in the genome is proportional to the per nucleotide mutation rate, u (ref. 1), and this ...

journal_title：Nature

authors： Haag-Liautard C,Dorris M,Maside X,Macaskill S,Halligan DL,Houle D,Charlesworth B,Keightley PD

更新日期：2007-01-04 00:00:00

abstract：:Understanding ice sheet behaviour in the geological past is essential for evaluating the role of the cryosphere in the climate system and for projecting rates and magnitudes of sea level rise in future warming scenarios1-4. Although both geological data5-7 and ice sheet models3,8 indicate that marine-based sectors of ...

journal_title：Nature

authors： Wilson DJ,Bertram RA,Needham EF,van de Flierdt T,Welsh KJ,McKay RM,Mazumder A,Riesselman CR,Jimenez-Espejo FJ,Escutia C

更新日期：2018-09-01 00:00:00

abstract：:The tumour necrosis factor (TNF) ligand TALL-1 and its cognate receptors, BCMA, TACI and BAFF-R, were recently identified as members of the TNF superfamily, which are essential factors contributing to B-cell maturation. The functional, soluble fragment of TALL-1 (sTALL-1) forms a virus-like assembly for its proper fun...

journal_title：Nature

authors： Liu Y,Hong X,Kappler J,Jiang L,Zhang R,Xu L,Pan CH,Martin WE,Murphy RC,Shu HB,Dai S,Zhang G

更新日期：2003-05-01 00:00:00

abstract：:RNA polymerase II (RNAP II) is responsible for transcribing all messenger RNAs in eukaryotic cells during a highly regulated process that is conserved from yeast to human, and that serves as a central control point for cellular function. Here we investigate the transcription dynamics of single RNAP II molecules from S...

journal_title：Nature

authors： Galburt EA,Grill SW,Wiedmann A,Lubkowska L,Choy J,Nogales E,Kashlev M,Bustamante C

更新日期：2007-04-12 00:00:00

abstract：:The 18-base-pair sequence element AGGTCGACCAGTACTCCG (the Sal box) signals termination of mouse ribosomal gene transcription. This sequence is recognized by a sequence-specific DNA-binding protein, TTF I, which mediates the termination of transcription by RNA polymerase I (pol I). Subsequently, the ends of the primary...

journal_title：Nature

authors： Kuhn A,Bartsch I,Grummt I

更新日期：1990-04-05 00:00:00

abstract：:Infertility resulting from a severe defect in sperm production affects 2% of men worldwide. Of these men with azoospermia, the absence of sperm in semen, one in eight carry de novo deletions for a specific region of the Y chromosome. A candidate gene for the Y-chromosome azoospermia factor (AZF) has been identified an...

journal_title：Nature

authors： Eberhart CG,Maines JZ,Wasserman SA

更新日期：1996-06-27 00:00:00

abstract：:Ecological theory suggests that large-scale patterns such as community stability can be influenced by changes in interspecific interactions that arise from the behavioural and/or physiological responses of individual species varying over time. Although this theory has experimental support, evidence from natural ecosys...

journal_title：Nature

authors： Ushio M,Hsieh CH,Masuda R,Deyle ER,Ye H,Chang CW,Sugihara G,Kondoh M

更新日期：2018-02-15 00:00:00

abstract：:CRISPR-Cas genome-editing nucleases hold substantial promise for developing human therapeutic applications1-6 but identifying unwanted off-target mutations is important for clinical translation7. A well-validated method that can reliably identify off-targets in vivo has not been described to date, which means it is cu...

journal_title：Nature

authors： Akcakaya P,Bobbin ML,Guo JA,Malagon-Lopez J,Clement K,Garcia SP,Fellows MD,Porritt MJ,Firth MA,Carreras A,Baccega T,Seeliger F,Bjursell M,Tsai SQ,Nguyen NT,Nitsch R,Mayr LM,Pinello L,Bohlooly-Y M,Aryee MJ,Maresca

更新日期：2018-09-01 00:00:00

abstract：:Trypanosomes of the species Trypanosoma brucei reproduce primarily by binary fission, but the frequency of enzyme electrophoretic variants in natural populations of T. brucei has provided indirect evidence for the existence of a sexual cycle. These studies, coupled with studies of restriction fragment length polymorph...

journal_title：Nature

authors： Jenni L,Marti S,Schweizer J,Betschart B,Le Page RW,Wells JM,Tait A,Paindavoine P,Pays E,Steinert M

更新日期：1986-07-10 00:00:00

abstract：:RNA interference is an evolutionarily conserved surveillance mechanism that responds to double-stranded RNA by sequence-specific silencing of homologous genes. Here we show that transgene expression can be suppressed in adult mice by synthetic small interfering RNAs and by small-hairpin RNAs transcribed in vivo from D...

journal_title：Nature

authors： McCaffrey AP,Meuse L,Pham TT,Conklin DS,Hannon GJ,Kay MA

更新日期：2002-07-04 00:00:00

abstract：:The recruitment model for gene activation stipulates that an activator works by bringing the transcriptional machinery to the DNA. Recent experiments in bacteria and yeast indicate that many genes can be activated by this mechanism. These findings have implications for our understanding of the nature of activating reg...

journal_title：Nature

authors： Ptashne M,Gann A

更新日期：1997-04-10 00:00:00

abstract：:Proteins are inherently plastic molecules, whose function often critically depends on excursions between different molecular conformations (conformers). However, a rigorous understanding of the relation between a protein's structure, dynamics and function remains elusive. This is because many of the conformers on its ...

journal_title：Nature

authors： Bouvignies G,Vallurupalli P,Hansen DF,Correia BE,Lange O,Bah A,Vernon RM,Dahlquist FW,Baker D,Kay LE

更新日期：2011-08-21 00:00:00

abstract：:Macroscopic mechanical objects and electromagnetic degrees of freedom can couple to each other through radiation pressure. Optomechanical systems in which this coupling is sufficiently strong are predicted to show quantum effects and are a topic of considerable interest. Devices in this regime would offer new types of...

journal_title：Nature

authors： Thompson JD,Zwickl BM,Jayich AM,Marquardt F,Girvin SM,Harris JG

更新日期：2008-03-06 00:00:00

abstract：:The 26S proteasome is the chief site of regulatory protein turnover in eukaryotic cells. It comprises one 20S catalytic complex (composed of four stacked rings of seven members) and two axially positioned 19S regulatory complexes (each containing about 18 subunits) that control substrate access to the catalytic chambe...

journal_title：Nature

authors： Lam YA,Lawson TG,Velayutham M,Zweier JL,Pickart CM

更新日期：2002-04-18 00:00:00

abstract：:Microtubule-based ATPases of the kinesin superfamily provide the motile force for many animated features of living cells. Kinesin motors differ in their direction of movement along microtubules. Kinesin and ncd, a kinesin-related motor involved in formation and maintenance of mitotic and meiotic spindles, move in oppo...

journal_title：Nature

authors： Sablin EP,Kull FJ,Cooke R,Vale RD,Fletterick RJ

更新日期：1996-04-11 00:00:00

abstract：:Nuclear import of the NF-AT transcription factors during T-cell activation requires the calcium-activated phosphatase calcineurin, which unmasks nuclear-location signals on NF-AT. We show here that the nuclear import of NF-ATs is not sufficient to activate NF-AT target genes, as NF-ATs are subject to a futile cycling ...

journal_title：Nature

authors： Zhu J,McKeon F

更新日期：1999-03-18 00:00:00

abstract：:Corticosteroids as well as non-steroid anti-inflammatory drugs inhibit the prostaglandin-mediated vasodilatation accompanying lipolysis in subcutaneous fat. Whereas the non-steroids produce their effect by inhibition of prostaglandin synthesis, however, corticosteroids inhibit their release. This mechanism may be the ...

journal_title：Nature

authors： Lewis GP,Piper PJ

更新日期：1975-03-27 00:00:00

abstract：:Overexploitation of renewable resources today has a high cost on the welfare of future generations. Unlike in other public goods games, however, future generations cannot reciprocate actions made today. What mechanisms can maintain cooperation with the future? To answer this question, we devise a new experimental para...

journal_title：Nature

authors： Hauser OP,Rand DG,Peysakhovich A,Nowak MA

更新日期：2014-07-10 00:00:00

abstract：: ...

journal_title：Nature

authors： Masood E

更新日期：2018-11-01 00:00:00

abstract：:MyoD1 and myogenin are muscle-specific proteins which can convert non-myogenic cells in culture to differentiated muscle fibres, implicating them in myogenic determination. The pattern of expression of MyoD1 and myogenin during the early stages of muscle formation in the mouse embryo in vivo and in limb-bud explants c...

journal_title：Nature

authors： Sassoon D,Lyons G,Wright WE,Lin V,Lassar A,Weintraub H,Buckingham M

更新日期：1989-09-28 00:00:00

abstract：:Sex in birds is chromosomally based, as in mammals, but the sex chromosomes are different and the mechanism of avian sex determination has been a long-standing mystery. In the chicken and all other birds, the homogametic sex is male (ZZ) and the heterogametic sex is female (ZW). Two hypotheses have been proposed for t...

journal_title：Nature

authors： Smith CA,Roeszler KN,Ohnesorg T,Cummins DM,Farlie PG,Doran TJ,Sinclair AH

更新日期：2009-09-10 00:00:00