Functional contributions of alpha5 subunit to neuronal acetylcholine receptor channels.

abstract：:Memory is believed to depend on activity-dependent changes in the strength of synapses. In part, this view is based on evidence that the efficacy of synapses can be enhanced or depressed depending on the timing of pre- and postsynaptic activity. However, when such plastic synapses are incorporated into neural network ...

journal_title：Nature

authors： Royer S,Paré D

更新日期：2003-04-03 00:00:00

abstract：:The hypothesis that animal population dynamics may be synchronized by climate is highly relevant in the context of climate change because it suggests that several populations might respond simultaneously to climatic trends if their dynamics are entrained by environmental correlation. The dynamics of many species throu...

journal_title：Nature

authors： Post E,Forchhammer MC

更新日期：2002-11-14 00:00:00

abstract：:Do biological motors move with regular steps? To address this question, we constructed instrumentation with the spatial and temporal sensitivity to resolve movement on a molecular scale. We deposited silica beads carrying single molecules of the motor protein kinesin on microtubules using optical tweezers and analysed...

journal_title：Nature

authors： Svoboda K,Schmidt CF,Schnapp BJ,Block SM

更新日期：1993-10-21 00:00:00

abstract：:Mineralocorticoid secretion is predominantly controlled by the octapeptide angiotensin II, which exerts trophic actions on the adrenal glomerulosa and acute regulatory effects on aldosterone biosynthesis. The trophic actions include stimulation of angiotensin II receptors and enzymes of the aldosterone biosynthetic pa...

journal_title：Nature

authors： Aguilera G,Schirar A,Baukal A,Catt KJ

更新日期：1981-02-05 00:00:00

abstract：:A decade ago, Lovelock and Whitfield raised the question of how much longer the biosphere can survive on Earth. They pointed out that, despite the current fossil-fuel induced increase in the atmospheric CO2 concentration, the long-term trend should be in the opposite direction: as increased solar luminosity warms th...

journal_title：Nature

authors： Caldeira K,Kasting JF

更新日期：1992-12-24 00:00:00

abstract：:Dusty disks around young stars are formed out of interstellar dust that consists of amorphous, submicrometre grains. Yet the grains found in comets and meteorites, and traced in the spectra of young stars, include large crystalline grains that must have undergone annealing or condensation at temperatures in excess of ...

journal_title：Nature

authors： Vinković D

更新日期：2009-05-14 00:00:00

abstract：:The recognition and localization of sound signals is fundamental to acoustic communication. Complex neural mechanisms are thought to underlie the processing of species-specific sound patterns even in animals with simple auditory pathways. In female crickets, which orient towards the male's calling song, current models...

journal_title：Nature

authors： Hedwig B,Poulet JF

更新日期：2004-08-12 00:00:00

abstract：:The Suzuki-Miyaura cross-coupling of organoboron nucleophiles with aryl halide electrophiles is one of the most widely used carbon-carbon bond-forming reactions in organic and medicinal chemistry1,2. A key challenge associated with these transformations is that they generally require the addition of an exogenous base,...

journal_title：Nature

authors： Malapit CA,Bour JR,Brigham CE,Sanford MS

更新日期：2018-11-01 00:00:00

abstract：: ...

journal_title：Nature

authors： Holmes J

更新日期：2018-10-01 00:00:00

abstract：:Animal viruses are broadly categorized structurally by the presence or absence of an envelope composed of a lipid-bilayer membrane, attributes that profoundly affect stability, transmission and immune recognition. Among those lacking an envelope, the Picornaviridae are a large and diverse family of positive-strand RNA...

journal_title：Nature

authors： Feng Z,Hensley L,McKnight KL,Hu F,Madden V,Ping L,Jeong SH,Walker C,Lanford RE,Lemon SM

更新日期：2013-04-18 00:00:00

abstract：: ...

journal_title：Nature

authors： Measey J

更新日期：2018-10-01 00:00:00

abstract：:Bax (Bcl2-associated X protein) is an apoptosis-inducing protein that participates in cell death during normal development and in various diseases. Bax resides in an inactive state in the cytosol of many cells. In response to death stimuli, Bax protein undergoes conformational changes that expose membrane-targeting do...

journal_title：Nature

authors： Guo B,Zhai D,Cabezas E,Welsh K,Nouraini S,Satterthwait AC,Reed JC

更新日期：2003-05-22 00:00:00

abstract：:As the first line of defence against pathogens, cells mount an innate immune response, which varies widely from cell to cell. The response must be potent but carefully controlled to avoid self-damage. How these constraints have shaped the evolution of innate immunity remains poorly understood. Here we characterize the...

journal_title：Nature

authors： Hagai T,Chen X,Miragaia RJ,Rostom R,Gomes T,Kunowska N,Henriksson J,Park JE,Proserpio V,Donati G,Bossini-Castillo L,Vieira Braga FA,Naamati G,Fletcher J,Stephenson E,Vegh P,Trynka G,Kondova I,Dennis M,Haniffa M,No

更新日期：2018-11-01 00:00:00

abstract：:The discovery that atrial extracts have potent diuretic and natriuretic properties revealed a possible endocrine function of the heart in the regulation of extracellular fluid volume. Since that first report intense research activity has been directed towards determining the mechanism of action of the active atrial na...

journal_title：Nature

authors： Harris PJ,Thomas D,Morgan TO

更新日期：1987-04-16 00:00:00

abstract：:Measurement of the free calcium concentration within a photo-receptor outer segment has been considered an important aim since the proposal by Hagins and Yoshikami that the primary event in phototransduction is a release of Ca (2+) inside the cell. More recent evidence has cast doubt on the calcium hypothesis, and the...

journal_title：Nature

authors： McNaughton PA,Cervetto L,Nunn BJ

更新日期：1986-07-17 00:00:00

abstract：:The split promoter sequences of a tRNALeuCUG gene of Xenopus laevis have been mapped to nucleotides 13-20 and 51-64 of the tRNALeu coding sequences. The sequences closely coincide with two conserved sequence blocks present in all eukaryotic tRNA genes. The two conserved sequence blocks were found to be exchangeable be...

journal_title：Nature

authors： Galli G,Hofstetter H,Birnstiel ML

更新日期：1981-12-17 00:00:00

abstract：:The exceptionally broad species diversity of vascular plant genera in east Asian temperate forests, compared with their sister taxa in North America, has been attributed to the greater climatic diversity of east Asia, combined with opportunities for allopatric speciation afforded by repeated fragmentation and coalesce...

journal_title：Nature

authors： Harrison SP,Yu G,Takahara H,Prentice IC

更新日期：2001-09-13 00:00:00

abstract：:Knowledge of the three-dimensional structures of proteins and other biological macromolecules often aids understanding of how they perform complicated tasks in the cell. Because many such tasks involve the cleavage or formation of chemical bonds, structural characterization at the atomic level is most useful. Developm...

journal_title：Nature

authors： Fernandez-Leiro R,Scheres SH

更新日期：2016-09-15 00:00:00

abstract：:High-coverage whole-genome sequence studies have so far focused on a limited number of geographically restricted populations, or been targeted at specific diseases, such as cancer. Nevertheless, the availability of high-resolution genomic data has led to the development of new methodologies for inferring population hi...

journal_title：Nature

authors： Pagani L,Lawson DJ,Jagoda E,Mörseburg A,Eriksson A,Mitt M,Clemente F,Hudjashov G,DeGiorgio M,Saag L,Wall JD,Cardona A,Mägi R,Wilson Sayres MA,Kaewert S,Inchley C,Scheib CL,Järve M,Karmin M,Jacobs GS,Antao T,Ilie

更新日期：2016-10-13 00:00:00

abstract：:The global land and ocean carbon sinks have increased proportionally with increasing carbon dioxide emissions during the past decades1. It is thought that Northern Hemisphere lands make a dominant contribution to the global land carbon sink2-7; however, the long-term trend of the northern land sink remains uncertain. ...

journal_title：Nature

authors： Ciais P,Tan J,Wang X,Roedenbeck C,Chevallier F,Piao SL,Moriarty R,Broquet G,Le Quéré C,Canadell JG,Peng S,Poulter B,Liu Z,Tans P

更新日期：2019-04-01 00:00:00

abstract：:Polar molecules have a rich internal structure and long-range dipole-dipole interactions, making them useful for quantum-controlled applications and fundamental investigations. Their potential fully unfolds at ultracold temperatures, where various effects are predicted in many-body physics, quantum information science...

journal_title：Nature

authors： Zeppenfeld M,Englert BG,Glöckner R,Prehn A,Mielenz M,Sommer C,van Buuren LD,Motsch M,Rempe G

更新日期：2012-11-22 00:00:00

abstract：:Microbes comprise the majority of extant organisms, yet much remains to be learned about the nature and driving forces of microbial diversification. Our understanding of how microorganisms adapt and evolve can be advanced by genome-wide documentation of the patterns of genetic exchange, particularly if analyses target...

journal_title：Nature

authors： Lo I,Denef VJ,Verberkmoes NC,Shah MB,Goltsman D,DiBartolo G,Tyson GW,Allen EE,Ram RJ,Detter JC,Richardson P,Thelen MP,Hettich RL,Banfield JF

更新日期：2007-03-29 00:00:00

abstract：:During the past ten years, coupled quantum wells have emerged as a promising system for experiments on Bose condensation of excitons, with numerous theoretical and experimental studies aimed at the demonstration of this effect. One of the issues driving these studies is the possibility of long-range coherent transport...

journal_title：Nature

authors： Snoke D,Denev S,Liu Y,Pfeiffer L,West K

更新日期：2002-08-15 00:00:00

abstract：:We have identified a cell type in 7-day-old rat optic nerve that differentiates into a fibrous astrocyte if cultured in the presence of fetal calf serum and into an oligodendrocyte if cultured in the absence of serum. In certain culture conditions some of these cells acquire a mixed phenotype, displaying properties of...

journal_title：Nature

authors： Raff MC,Miller RH,Noble M

更新日期：1983-06-02 00:00:00

abstract：:Microscopic diamond was recently discovered in oxidized acid residues from several carbonaceous chondrite meteorites (for example, the C delta component of the Allende meteorite). Some of the reported properties of C delta seem in conflict with those expected of diamond. Here we present high spatial resolution analy...

journal_title：Nature

authors： Blake DF,Freund F,Krishnan KF,Echer CJ,Shipp R,Bunch TE,Tielens AG,Lipari RJ,Hetherington CJ,Chang S

更新日期：1988-04-14 00:00:00

abstract：:The motility of the gastrointestinal tract consists of local, non-propulsive mixing (pendular or segmental) and propulsive (peristaltic) movements. It is generally considered that mixing movements are produced by intrinsic pacemakers which generate rhythmic contractions, and peristalsis by intrinsic excitatory and inh...

journal_title：Nature

authors： Stevens RJ,Publicover NG,Smith TK

更新日期：1999-05-06 00:00:00

abstract：:An Amendment to this paper has been published and can be accessed via a link at the top of the paper. ...

journal_title：Nature

authors： Segel M,Neumann B,Hill MFE,Weber IP,Viscomi C,Zhao C,Young A,Agley CC,Thompson AJ,Gonzalez GA,Sharma A,Holmqvist S,Rowitch DH,Franze K,Franklin RJM,Chalut KJ

更新日期：2019-09-01 00:00:00

abstract：:Bacterial adhesion pili are designed to bind specifically and maintain attachment of bacteria to target cells. Uropathogenic P-pili are sufficiently mechanically resilient to resist the cleansing action of urine flow that removes most other bacteria. P-pili are 68 A in diameter and approximately 1 micron long, and are...

journal_title：Nature

authors： Bullitt E,Makowski L

更新日期：1995-01-12 00:00:00

abstract：:Protein folding and binding are analogous processes, in which the protein 'searches' for favourable intramolecular or intermolecular interactions on a funnelled energy landscape. Many eukaryotic proteins are disordered under physiological conditions, and fold into ordered structures only on binding to their cellular t...

journal_title：Nature

authors： Sugase K,Dyson HJ,Wright PE

更新日期：2007-06-21 00:00:00

abstract：:China is the world's most populous country and a major emitter of greenhouse gases. Consequently, much research has focused on China's influence on climate change but somewhat less has been written about the impact of climate change on China. China experienced explosive economic growth in recent decades, but with only...

journal_title：Nature

authors： Piao S,Ciais P,Huang Y,Shen Z,Peng S,Li J,Zhou L,Liu H,Ma Y,Ding Y,Friedlingstein P,Liu C,Tan K,Yu Y,Zhang T,Fang J

更新日期：2010-09-02 00:00:00