Structural basis of cohesin cleavage by separase.

abstract：:Long-term reconstitution of the lymphohaematopoietic cells of a mouse after lethal irradiation requires the transplantation of at least (5-10) x 10(3) bone marrow cells. Several cell-separation techniques based on cell-surface characteristics have been used in attempts to identify the pluripotent haematopoietic stem c...

journal_title：Nature

authors： Jones RJ,Wagner JE,Celano P,Zicha MS,Sharkis SJ

更新日期：1990-09-13 00:00:00

abstract：:High-energy cosmic-ray electrons and positrons (CREs), which lose energy quickly during their propagation, provide a probe of Galactic high-energy processes and may enable the observation of phenomena such as dark-matter particle annihilation or decay. The CRE spectrum has been measured directly up to approximately 2 ...

journal_title：Nature

authors： DAMPE Collaboration.

更新日期：2017-12-07 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：:Guard cells are located in the epidermis of plant leaves, and in pairs surround stomatal pores. These control both the influx of CO2 as a raw material for photosynthesis and water loss from plants through transpiration to the atmosphere. Guard cells have become a highly developed system for dissecting early signal tra...

journal_title：Nature

authors： Schroeder JI,Kwak JM,Allen GJ

更新日期：2001-03-15 00:00:00

abstract：:Despite the continued increase in atmospheric greenhouse gas concentrations, the annual-mean global temperature has not risen in the twenty-first century, challenging the prevailing view that anthropogenic forcing causes climate warming. Various mechanisms have been proposed for this hiatus in global warming, but thei...

journal_title：Nature

authors： Kosaka Y,Xie SP

更新日期：2013-09-19 00:00:00

abstract：:Glycine is an important inhibitory transmitter in the brainstem and spinal cord. In the trigeminal subnucleus caudalis (medullary dorsal horn) and in the spinal dorsal horn (the relaying centres for processing pain and sensory information), glycine inhibits the glutamate-evoked depolarization and depresses firing of n...

journal_title：Nature

authors： Song YM,Huang LY

更新日期：1990-11-15 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：:Binocular coordination of eye movements is essential for stereopsis (depth perception) and to prevent double vision. More than a century ago, Hering and Helmholtz debated the neural basis of binocular coordination. Helmholtz believed that each eye is controlled independently and that binocular coordination is learned....

journal_title：Nature

authors： Zhou W,King WM

更新日期：1998-06-18 00:00:00

abstract：:Genotypic variation among independent isolates of human immunodeficiency virus type-1 (HIV-1) is well known, but its molecular basis and biological consequences are poorly understood. We examined the genesis of molecular variation in HIV-1 by sequential virus isolations from two chronically infected individuals and an...

journal_title：Nature

authors： Saag MS,Hahn BH,Gibbons J,Li Y,Parks ES,Parks WP,Shaw GM

更新日期：1988-08-04 00:00:00

abstract：:Concern about the levels of lead in blood is widespread. There is uncertainty, however, about the relative importance of the various environmental sources. Lead in petrol is widely assumed to be one of the most important sources and air and dust have been identified as the main routes to man. Water is regarded as an i...

journal_title：Nature

authors： Elwood PC,Gallacher JE,Phillips KM,Davies BE,Toothill C

更新日期：1984-07-12 00:00:00

abstract：:Necroptosis has emerged as an important pathway of programmed cell death in embryonic development, tissue homeostasis, immunity and inflammation. RIPK1 is implicated in inflammatory and cell death signalling and its kinase activity is believed to drive RIPK3-mediated necroptosis. Here we show that kinase-independent s...

journal_title：Nature

authors： Dannappel M,Vlantis K,Kumari S,Polykratis A,Kim C,Wachsmuth L,Eftychi C,Lin J,Corona T,Hermance N,Zelic M,Kirsch P,Basic M,Bleich A,Kelliher M,Pasparakis M

更新日期：2014-09-04 00:00:00

abstract：:Proximal spinal muscular atrophies represent the second most common fatal, autosomal recessive disorder after cystic fibrosis. The childhood form is classically subdivided into three groups: acute Werdnig-Hoffmann (type I), intermediate Werdnig-Hoffmann disease (type II) and Kugelberg-Welander disease (type III). Thes...

journal_title：Nature

authors： Melki J,Abdelhak S,Sheth P,Bachelot MF,Burlet P,Marcadet A,Aicardi J,Barois A,Carriere JP,Fardeau M

更新日期：1990-04-19 00:00:00

abstract：:How long does it take a random walker to reach a given target point? This quantity, known as a first-passage time (FPT), has led to a growing number of theoretical investigations over the past decade. The importance of FPTs originates from the crucial role played by first encounter properties in various real situation...

journal_title：Nature

authors： Condamin S,Bénichou O,Tejedor V,Voituriez R,Klafter J

更新日期：2007-11-01 00:00:00

abstract：:Brain-derived neurotrophic factor (BDNF) and other neurotrophins have a vital role in the development of the rat and mouse nervous system by influencing the expression of many specific genes that promote differentiation, cell survival, synapse formation and, later, synaptic plasticity. Although nitric oxide (NO) is kn...

journal_title：Nature

authors： Nott A,Watson PM,Robinson JD,Crepaldi L,Riccio A

更新日期：2008-09-18 00:00:00

abstract：:The recent discovery of a pterosaur egg with embryonic skeleton and soft tissues from the Yixian Formation confirmed that the flying pterosaurs were oviparous. Here we describe another pterosaur egg whose exquisite preservation indicates that the shell structure was soft and leathery. ...

journal_title：Nature

authors： Ji Q,Ji SA,Cheng YN,You HL,Lü JC,Liu YQ,Yuan CX

更新日期：2004-12-02 00:00:00

abstract：:The annual cycle in the Earth's surface temperature is extremely large-comparable in magnitude to the glacial-interglacial cycles over most of the planet. Trends in the phase and the amplitude of the annual cycle have been observed, but the causes and significance of these changes remain poorly understood-in part beca...

journal_title：Nature

authors： Stine AR,Huybers P,Fung IY

更新日期：2009-01-22 00:00:00

abstract：:Several of the thousands of human long non-coding RNAs (lncRNAs) have been functionally characterized; however, potential roles for lncRNAs in somatic tissue differentiation remain poorly understood. Here we show that a 3.7-kilobase lncRNA, terminal differentiation-induced ncRNA (TINCR), controls human epidermal diffe...

journal_title：Nature

authors： Kretz M,Siprashvili Z,Chu C,Webster DE,Zehnder A,Qu K,Lee CS,Flockhart RJ,Groff AF,Chow J,Johnston D,Kim GE,Spitale RC,Flynn RA,Zheng GX,Aiyer S,Raj A,Rinn JL,Chang HY,Khavari PA

更新日期：2013-01-10 00:00:00

abstract：:Atlantic tropical cyclone activity, as measured by annual storm counts, reached anomalous levels over the past decade. The short nature of the historical record and potential issues with its reliability in earlier decades, however, has prompted an ongoing debate regarding the reality and significance of the recent ris...

journal_title：Nature

authors： Mann ME,Woodruff JD,Donnelly JP,Zhang Z

更新日期：2009-08-13 00:00:00

abstract：:In the absence of extraneously added template, standard preparations of Q beta replicase spontaneously synthesize RNA in vitro, possibly as a result of RNA contamination. Using special enzyme purifications, Sumper and Luce presented evidence that self-replicating RNA not present ab initio can grow out of 'template-fre...

journal_title：Nature

authors： Biebricher CK,Eigen M,Luce R

更新日期：1986-05-01 00:00:00

abstract：:Transmembrane sodium-ion gradients provide energy that can be harnessed by 'secondary transporters' to drive the translocation of solute molecules into a cell. Decades of study have shown that such sodium-coupled transporters are involved in many physiological processes, making them targets for the treatment of numero...

journal_title：Nature

authors： Krishnamurthy H,Piscitelli CL,Gouaux E

更新日期：2009-05-21 00:00:00

abstract：:Insulin stimulates glucose uptake in muscle and adipocytes by signalling the translocation of GLUT4 glucose transporters from intracellular membranes to the cell surface. The translocation of GLUT4 may involve signalling pathways that are both independent of and dependent on phosphatidylinositol-3-OH kinase (PI(3)K). ...

journal_title：Nature

authors： Bose A,Guilherme A,Robida SI,Nicoloro SM,Zhou QL,Jiang ZY,Pomerleau DP,Czech MP

更新日期：2002-12-19 00:00:00

abstract：:Scanning probe microscopy is a versatile and powerful method that uses sharp tips to image, measure and manipulate matter at surfaces with atomic resolution. At cryogenic temperatures, scanning probe microscopy can even provide electron tunnelling spectra that serve as fingerprints of the vibrational properties of ads...

journal_title：Nature

authors： Sugimoto Y,Pou P,Abe M,Jelinek P,Pérez R,Morita S,Custance O

更新日期：2007-03-01 00:00:00

abstract：:The role of adaptive immunity in early cancer development is controversial. Here we show that chronic inflammation and fibrosis in humans and mice with non-alcoholic fatty liver disease is accompanied by accumulation of liver-resident immunoglobulin-A-producing (IgA+) cells. These cells also express programmed death l...

journal_title：Nature

authors： Shalapour S,Lin XJ,Bastian IN,Brain J,Burt AD,Aksenov AA,Vrbanac AF,Li W,Perkins A,Matsutani T,Zhong Z,Dhar D,Navas-Molina JA,Xu J,Loomba R,Downes M,Yu RT,Evans RM,Dorrestein PC,Knight R,Benner C,Anstee QM,Kar

更新日期：2017-11-16 00:00:00

abstract：:The evolution of snakes involved major changes in vertebrate body plan organization, but the developmental basis of those changes is unknown. The python axial skeleton consists of hundreds of similar vertebrae, forelimbs are absent and hindlimbs are severely reduced. Combined limb loss and trunk elongation is found in...

journal_title：Nature

authors： Cohn MJ,Tickle C

更新日期：1999-06-03 00:00:00

abstract：:In the few species of birds in which males form display partnerships to attract females, one male secures most or all of the copulations. This leads to the question of why subordinate males help in the absence of observable reproductive benefits. Hamilton's concept of kin selection, whereby individuals can benefit ind...

journal_title：Nature

authors： Krakauer AH

更新日期：2005-03-03 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：:The ability to control the quantum state of a single electron spin in a quantum dot is at the heart of recent developments towards a scalable spin-based quantum computer. In combination with the recently demonstrated controlled exchange gate between two neighbouring spins, driven coherent single spin rotations would p...

journal_title：Nature

authors： Koppens FH,Buizert C,Tielrooij KJ,Vink IT,Nowack KC,Meunier T,Kouwenhoven LP,Vandersypen LM

更新日期：2006-08-17 00:00:00

abstract：:Electrons in a single sheet of graphene behave quite differently from those in traditional two-dimensional electron systems. Like massless relativistic particles, they have linear dispersion and chiral eigenstates. Furthermore, two sets of electrons centred at different points in reciprocal space ('valleys') have this...

journal_title：Nature

authors： Song YJ,Otte AF,Kuk Y,Hu Y,Torrance DB,First PN,de Heer WA,Min H,Adam S,Stiles MD,MacDonald AH,Stroscio JA

更新日期：2010-09-09 00:00:00

abstract：:Traditionally, entanglement was considered to be a quirk of microscopic objects that defied a common-sense explanation. Now, however, entanglement is recognized to be ubiquitous and robust. With the realization that entanglement can occur in macroscopic systems - and with the development of experiments aimed at exploi...

journal_title：Nature

authors： Vedral V

更新日期：2008-06-19 00:00:00

abstract：:Since the origins of agriculture, the scale of human cooperation and societal complexity has dramatically expanded. This fact challenges standard evolutionary explanations of prosociality because well-studied mechanisms of cooperation based on genetic relatedness, reciprocity and partner choice falter as people increa...

journal_title：Nature

authors： Purzycki BG,Apicella C,Atkinson QD,Cohen E,McNamara RA,Willard AK,Xygalatas D,Norenzayan A,Henrich J

更新日期：2016-02-18 00:00:00