Cholinergic neuropil of the striatum observes striosomal boundaries.

abstract：:A model catalyst is described which has properties in common with carbonic anhydrase. The model demonstrates the availability of a mechanism, previously only hypothetical, for the action of the enzyme. It also shows, however, that this mechanism alone is not adequate to produce the high activity of the enzyme. ...

journal_title：Nature

authors： Woolley P

更新日期：1975-12-25 00:00:00

abstract：:Generation of a diverse and self-tolerant T-cell repertoire requires appropriate interpretation of T-cell antigen receptor (TCR) signals by CD4(+ ) CD8(+) double-positive thymocytes. Thymocyte cell fate is dictated by the nature of TCR-major-histocompatibility-complex (MHC)-peptide interactions, with signals of higher...

journal_title：Nature

authors： Staton TL,Lazarevic V,Jones DC,Lanser AJ,Takagi T,Ishii S,Glimcher LH

更新日期：2011-04-07 00:00:00

abstract：:Little is known about virus-host cell interactions that regulate the lytic potential of viruses during productive replication. Sindbis virus (SV), a single-stranded positive-sense RNA virus in the alphavirus genus (family Togaviridae), results in lytic infection in most vertebrate cell lines, but persistent productive...

journal_title：Nature

authors： Levine B,Huang Q,Isaacs JT,Reed JC,Griffin DE,Hardwick JM

更新日期：1993-02-25 00:00:00

abstract：:Spin dynamics in antiferromagnets has much shorter timescales than in ferromagnets, offering attractive properties for potential applications in ultrafast devices1-3. However, spin-current generation via antiferromagnetic resonance and simultaneous electrical detection by the inverse spin Hall effect in heavy metals h...

journal_title：Nature

authors： Li J,Wilson CB,Cheng R,Lohmann M,Kavand M,Yuan W,Aldosary M,Agladze N,Wei P,Sherwin MS,Shi J

更新日期：2020-02-01 00:00:00

abstract：:Neurotransmitter release is initiated by influx of Ca2+ through voltage-gated Ca2+ channels, within 200 microseconds of the action potential arriving at the synaptic terminal, as the Ca2+ concentration increases from 100 nM to > 200 microM. Exocytosis requires high Ca2+ concentration, with a threshold of 20-50 microM ...

journal_title：Nature

authors： Sheng ZH,Rettig J,Cook T,Catterall WA

更新日期：1996-02-01 00:00:00

abstract：:Although vascular endothelial growth factor (VEGF) induces angiogenesis, it also disrupts vascular barrier function in diseased tissues. Accordingly, VEGF expression in cancer and ischaemic disease has unexpected pathophysiological consequences. By uncoupling endothelial cell-cell junctions VEGF causes vascular permea...

journal_title：Nature

authors： Weis SM,Cheresh DA

更新日期：2005-09-22 00:00:00

abstract：:The quantum spin properties of nitrogen-vacancy defects in diamond enable diverse applications in quantum computing and communications1. However, fluorescent nanodiamonds also have attractive properties for in vitro biosensing, including brightness2, low cost3 and selective manipulation of their emission4. Nanoparticl...

journal_title：Nature

authors： Miller BS,Bezinge L,Gliddon HD,Huang D,Dold G,Gray ER,Heaney J,Dobson PJ,Nastouli E,Morton JJL,McKendry RA

更新日期：2020-11-01 00:00:00

abstract：:Injury causes a systemic inflammatory response syndrome (SIRS) that is clinically much like sepsis. Microbial pathogen-associated molecular patterns (PAMPs) activate innate immunocytes through pattern recognition receptors. Similarly, cellular injury can release endogenous 'damage'-associated molecular patterns (DAMPs...

journal_title：Nature

authors： Zhang Q,Raoof M,Chen Y,Sumi Y,Sursal T,Junger W,Brohi K,Itagaki K,Hauser CJ

更新日期：2010-03-04 00:00:00

abstract：:Nanoscale or colloidal particles are important in many realms of science and technology. They can dramatically change the properties of materials, imparting solid-like behaviour to a wide variety of complex fluids. This behaviour arises when particles aggregate to form mesoscopic clusters and networks. The essential c...

journal_title：Nature

authors： Lu PJ,Zaccarelli E,Ciulla F,Schofield AB,Sciortino F,Weitz DA

更新日期：2008-05-22 00:00:00

abstract：:Water has many kinetic and thermodynamic properties that exhibit an anomalous dependence on temperature, in particular in the supercooled phase. These anomalies have long been interpreted in terms of underlying structural causes, and their experimental characterization points to the existence of a singularity at a tem...

journal_title：Nature

authors： Torre R,Bartolini P,Righini R

更新日期：2004-03-18 00:00:00

abstract：:Phase and antigenic variation of pilin expression in Neisseria gonorrhoeae result from recombination events in which variant sequences from one of the silent loci (pilS) are transferred to the expression locus (pilE). Such rearrangements were originally thought to be gene conversions, but findings showing that phase v...

journal_title：Nature

authors： Gibbs CP,Reimann BY,Schultz E,Kaufmann A,Haas R,Meyer TF

更新日期：1989-04-20 00:00:00

abstract：:T-lymphocyte co-recognition of antigen and major histocompatibility complex (MHC)-encoded molecules (such as murine Ia molecules) is thought to be mediated by a single cell-surface receptor, although the molecular mechanism by which this occurs is controversial (reviewed in ref. 1). One possibility is that the antigen...

journal_title：Nature

authors： Ashwell JD,Schwartz RH

更新日期：1986-03-13 00:00:00

abstract：:The src gene product, p60src, of Rous sarcoma virus (RSV) is a tyrosine-specific protein kinase which is associated with the plasma membrane of infected cells. Myristic acid is bound in an amide linkage to glycine 2 of p60src. Of the N-terminal 30 kilodaltons of p60src, only amino acids 1-14 are required for myristyla...

journal_title：Nature

authors： Pellman D,Garber EA,Cross FR,Hanafusa H

更新日期：1985-03-28 00:00:00

abstract：:The amount of energy used to run a mile is nearly the same whether it is run at top speed or at a leisurely pace (although it is used more rapidly at the higher speed). This puzzling independence of energy cost and speed is found generally among running animals, although, on a per gram basis, cost is much higher for s...

journal_title：Nature

authors： Kram R,Taylor CR

更新日期：1990-07-19 00:00:00

abstract：:The limited ranges of the wild progenitors of many of the primary European domestic species point to their origins further east in Anatolia or the fertile crescent. The wild ox (Bos primigenius), however, ranged widely and it is unknown whether it was domesticated within Europe as one feature of a local contribution t...

journal_title：Nature

authors： Troy CS,MacHugh DE,Bailey JF,Magee DA,Loftus RT,Cunningham P,Chamberlain AT,Sykes BC,Bradley DG

更新日期：2001-04-26 00:00:00

abstract：:Long-term potentiation of chemical synapses is closely related to memory and learning. Studies of this process have concentrated on chemically mediated excitatory synapses. By contrast, activity-dependent modification of gap junctions, which also widely exist in higher structures such as hippocampus and neocortex, has...

journal_title：Nature

authors： Yang XD,Korn H,Faber DS

更新日期：1990-12-06 00:00:00

abstract：:The guinea-pig (Cavia porcellus), traditionally classified as a New World hystricomorph rodent, often shows anomalous morphological and molecular features in comparison with other eutherian mammals. For example, its insulin differs from that of other mammals in anabolic and growth-promoting activities and in its capab...

journal_title：Nature

authors： Graur D,Hide WA,Li WH

更新日期：1991-06-20 00:00:00

abstract：:Although stars form from clouds of gas and dust, there are insignificant amounts of gas around ordinary (Sun-like) stars. This suggests that hydrogen and helium, the primary constituents of planets such as Jupiter and Saturn, are not easily retained in orbit as a star matures. The gas-giant planets in the Solar System...

journal_title：Nature

authors： Zuckerman B,Forveille T,Kastner JH

更新日期：1995-02-09 00:00:00

abstract：:The additional author support information was erroneously omitted from the Supplementary Information. This has been corrected online. ...

journal_title：Nature

authors： Hilf N,Kuttruff-Coqui S,Frenzel K,Bukur V,Stevanović S,Gouttefangeas C,Platten M,Tabatabai G,Dutoit V,van der Burg SH,Straten PT,Martinez-Ricarte F,Ponsati B,Okada H,Lassen U,Admon A,Ottensmeier CH,Ulges A,Kreiter S,

更新日期：2019-02-01 00:00:00

abstract：:c-Abl, a non-receptor tyrosine kinase, is activated by agents that damage DNA. This activation results in either arrest of the cell cycle in phase G1 or apoptotic cell death, both of which are dependent on the kinase activity of c-Abl. p73, a member of the p53 family of tumour-suppressor proteins, can also induce apop...

journal_title：Nature

authors： Agami R,Blandino G,Oren M,Shaul Y

更新日期：1999-06-24 00:00:00

abstract：:Classical novae are the most common astrophysical thermonuclear explosions, occurring on the surfaces of white dwarf stars accreting gas from companions in binary star systems. Novae typically expel about 10(-4) solar masses of material at velocities exceeding 1,000 kilometres per second. However, the mechanism of mas...

journal_title：Nature

authors： Chomiuk L,Linford JD,Yang J,O'Brien TJ,Paragi Z,Mioduszewski AJ,Beswick RJ,Cheung CC,Mukai K,Nelson T,Ribeiro VA,Rupen MP,Sokoloski JL,Weston J,Zheng Y,Bode MF,Eyres S,Roy N,Taylor GB

更新日期：2014-10-16 00:00:00

abstract：:Tuberculosis is the leading cause of death in the world resulting from a single bacterial infection. Despite its enormous burden on world health, little is known about the molecular mechanisms of pathogenesis of Mycobacterium tuberculosis. Bacterial multiplication and concomitant tissue damage within an infected host,...

journal_title：Nature

authors： Cox JS,Chen B,McNeil M,Jacobs WR Jr

更新日期：1999-11-04 00:00:00

abstract：:Comparative mapping, which compares the location of homologous genes in different species, is a powerful tool for studying genome evolution. Comparative maps suggest that rates of chromosomal change in mammals can vary from one to ten rearrangements per million years. On the basis of these rates we would expect 84 to ...

journal_title：Nature

authors： Burt DW,Bruley C,Dunn IC,Jones CT,Ramage A,Law AS,Morrice DR,Paton IR,Smith J,Windsor D,Sazanov A,Fries R,Waddington D

更新日期：1999-11-25 00:00:00

abstract：:Surface gravity is a basic stellar property, but it is difficult to measure accurately, with typical uncertainties of 25 to 50 per cent if measured spectroscopically and 90 to 150 per cent if measured photometrically. Asteroseismology measures gravity with an uncertainty of about 2 per cent but is restricted to relati...

journal_title：Nature

authors： Bastien FA,Stassun KG,Basri G,Pepper J

更新日期：2013-08-22 00:00:00

abstract：:Scientific fraud, much in the news recently, is not a new phenomenon. What follows is a personal account of a particular case. ...

journal_title：Nature

authors： Rossiter EJ

更新日期：1992-06-11 00:00:00

abstract：:Human T-cell receptors for antigen and major histocompatibility complex (MHC) determinants have now been defined on inducer, suppressor, and class 1 and class 2 MHC-specific cytotoxic T lymphocytes as T3-associated clonotypic molecules (Ti) of relative molecular mass 90,000 (90K) composed of one 49-54K alpha- and one ...

journal_title：Nature

authors： Fabbi M,Acuto O,Smart JE,Reinherz EL

更新日期：1984-11-15 00:00:00

abstract：:Interleukin-2 (IL-2) is a regulatory peptide important for the growth and differentiation of antigen-specific T lymphocytes and large granular lymphocytes. Interaction of IL-2 with its specific receptor results in the promotion of S-phase progression as well as, in certain circumstances, the production and release of ...

journal_title：Nature

authors： Farrar WL,Anderson WB

更新日期：1985-05-16 00:00:00

abstract：:Glutamate transporters are integral membrane proteins that catalyse neurotransmitter uptake from the synaptic cleft into the cytoplasm of glial cells and neurons. Their mechanism of action involves transitions between extracellular (outward)-facing and intracellular (inward)-facing conformations, whereby substrate bin...

journal_title：Nature

authors： Akyuz N,Altman RB,Blanchard SC,Boudker O

更新日期：2013-10-03 00:00:00

abstract：:Exchange dynamics between molecules free in solution and bound to the surface of a large supramolecular structure, a polymer, a membrane or solid support are important in many phenomena in biology and materials science. Here we present a novel and generally applicable solution NMR technique, known as dark-state exchan...

journal_title：Nature

authors： Fawzi NL,Ying J,Ghirlando R,Torchia DA,Clore GM

更新日期：2011-10-30 00:00:00

abstract：:Mecsas and colleagues suggest that a deficiency in the chemokine receptor CCR5 in humans is unlikely to confer protection against plague, based on their study of Yersinia pestis infection in Ccr5-deficient mice. They were testing the hypothesis that a mutation in the CCR5 gene, frequently found in Caucasians, may have...

journal_title：Nature

authors： Elvin SJ,Williamson ED,Scott JC,Smith JN,Pérez De Lema G,Chilla S,Clapham P,Pfeffer K,Schlöndorff D,Luckow B

更新日期：2004-07-22 00:00:00