The product of the Drosophila gene vasa is very similar to eukaryotic initiation factor-4A.

abstract：:T lymphocytes are predisposed to recognition of foreign protein fragments bound to cell-surface molecules encoded by the major histocompatibility complex (MHC). There is now compelling evidence that this specificity is a consequence of a selection process operating on developing T lymphocytes in the thymus. As a resul...

journal_title：Nature

authors： Kaye J,Hsu ML,Sauron ME,Jameson SC,Gascoigne NR,Hedrick SM

更新日期：1989-10-26 00:00:00

abstract：:DNA methylation is highly dynamic during mammalian embryogenesis. It is broadly accepted that the paternal genome is actively depleted of 5-methylcytosine at fertilization, followed by passive loss that reaches a minimum at the blastocyst stage. However, this model is based on limited data, and so far no base-resoluti...

journal_title：Nature

authors： Smith ZD,Chan MM,Mikkelsen TS,Gu H,Gnirke A,Regev A,Meissner A

更新日期：2012-03-28 00:00:00

abstract：:Temperature is a key factor in controlling the distribution of marine organisms and is particularly important at hydrothermal vents, where steep thermal gradients are present over a scale of centimetres. The thermophilic worm Alvinella pompejana, which is found at the vents of the East Pacific Rise (2,500-m depth), ha...

journal_title：Nature

authors： Pradillon F,Shillito B,Young CM,Gaill F

更新日期：2001-10-18 00:00:00

abstract：:Polymer electrolyte membrane fuel cells (PEMFCs) running on hydrogen are attractive alternative power supplies for a range of applications, with in situ release of the required hydrogen from a stable liquid offering one way of ensuring its safe storage and transportation before use. The use of methanol is particularly...

journal_title：Nature

authors： Lin L,Zhou W,Gao R,Yao S,Zhang X,Xu W,Zheng S,Jiang Z,Yu Q,Li YW,Shi C,Wen XD,Ma D

更新日期：2017-04-06 00:00:00

abstract：:An inductor, one of the most fundamental circuit elements in modern electronic devices, generates a voltage proportional to the time derivative of the input current1. Conventional inductors typically consist of a helical coil and induce a voltage as a counteraction to time-varying magnetic flux penetrating the coil, f...

journal_title：Nature

authors： Yokouchi T,Kagawa F,Hirschberger M,Otani Y,Nagaosa N,Tokura Y

更新日期：2020-10-01 00:00:00

abstract：:Pollinators are declining worldwide and this has raised concerns for a parallel decline in the essential pollination service they provide to both crops and wild plants. Anthropogenic drivers linked to this decline include habitat changes, intensive agriculture, pesticides, invasive alien species, spread of pathogens a...

journal_title：Nature

authors： Knop E,Zoller L,Ryser R,Gerpe C,Hörler M,Fontaine C

更新日期：2017-08-10 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

abstract：:Peroxisomes are among the intracellular organelles of eukaryotic cells that contain specialized sets of enzymes with specific functions. Little is known of membranous components involved in assembly of the intracellular compartments. We isolated two peroxisome-deficient and mutually complementary, Chinese hamster ovar...

journal_title：Nature

authors： Tsukamoto T,Miura S,Fujiki Y

更新日期：1991-03-07 00:00:00

abstract：:Topoisomerases are expressed throughout the developing and adult brain and are mutated in some individuals with autism spectrum disorder (ASD). However, how topoisomerases are mechanistically connected to ASD is unknown. Here we find that topotecan, a topoisomerase 1 (TOP1) inhibitor, dose-dependently reduces the expr...

journal_title：Nature

authors： King IF,Yandava CN,Mabb AM,Hsiao JS,Huang HS,Pearson BL,Calabrese JM,Starmer J,Parker JS,Magnuson T,Chamberlain SJ,Philpot BD,Zylka MJ

更新日期：2013-09-05 00:00:00

abstract：:To cause diseases in plants, pathogenic microorganisms have evolved mechanisms to deliver proteins directly into plant cells, where they suppress plant defences and facilitate tissue invasion. How plant pathogenic fungi, which cause many of the world's most serious plant diseases, deliver proteins during plant infecti...

journal_title：Nature

authors： Gilbert MJ,Thornton CR,Wakley GE,Talbot NJ

更新日期：2006-03-23 00:00:00

abstract：:During development, sympathetic neurons extend axons along a myriad of distinct trajectories, often consisting of arteries, to innervate one of a large variety of distinct final target tissues. Whether or not subsets of neurons within complex sympathetic ganglia are predetermined to innervate select end-organs is unkn...

journal_title：Nature

authors： Makita T,Sucov HM,Gariepy CE,Yanagisawa M,Ginty DD

更新日期：2008-04-10 00:00:00

abstract：:The colonization of a new habitat is a fundamental process in metapopulation biology, but it is difficult to study. The emigration of colonists from established populations might be induced by resource competition owing to high local population density. Migration distances are also important because they determine the...

journal_title：Nature

authors： Gaggiotti OE,Jones F,Lee WM,Amos W,Harwood J,Nichols RA

更新日期：2002-03-28 00:00:00

abstract：:During cellular translation of messenger RNAs by ribosomes, the translation apparatus sometimes pauses or stalls at the elongation and termination steps. With the exception of programmed stalling, which is usually used by cells for regulatory purposes, ribosomes stalled on mRNAs need to be terminated and recycled to m...

journal_title：Nature

authors： Ma C,Kurita D,Li N,Chen Y,Himeno H,Gao N

更新日期：2017-01-26 00:00:00

abstract：:Breast cancer patients with the same stage of disease can have markedly different treatment responses and overall outcome. The strongest predictors for metastases (for example, lymph node status and histological grade) fail to classify accurately breast tumours according to their clinical behaviour. Chemotherapy or ho...

journal_title：Nature

authors： van 't Veer LJ,Dai H,van de Vijver MJ,He YD,Hart AA,Mao M,Peterse HL,van der Kooy K,Marton MJ,Witteveen AT,Schreiber GJ,Kerkhoven RM,Roberts C,Linsley PS,Bernards R,Friend SH

更新日期：2002-01-31 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：:Chemotaxis in Caenorhabditis elegans, like chemotaxis in bacteria, involves a random walk biased by the time derivative of attractant concentration, but how the derivative is computed is unknown. Laser ablations have shown that the strongest deficits in chemotaxis to salts are obtained when the ASE chemosensory neuron...

journal_title：Nature

authors： Suzuki H,Thiele TR,Faumont S,Ezcurra M,Lockery SR,Schafer WR

更新日期：2008-07-03 00:00:00

abstract：:Sex is expensive. A population of females that reproduce asexually should prima facie have twice the growth rate of an otherwise equivalent anisogamous sexual population lacking paternal care, or a population with modes of paternal care that can be co-opted by parthenogenetic females. The two leading theories for the ...

journal_title：Nature

authors： Siller S,Department of Zoology, University of Oxford, UK. steven.siller@zoo.ox.ac.uk.

更新日期：2001-06-07 00:00:00

abstract：:The identification of properties that contribute to the persistence and resilience of ecosystems despite climate change constitutes a research priority of global relevance. Here we present a novel, empirical approach to assess the relative sensitivity of ecosystems to climate variability, one property of resilience th...

journal_title：Nature

authors： Seddon AW,Macias-Fauria M,Long PR,Benz D,Willis KJ

更新日期：2016-03-10 00:00:00

abstract：:Dehydration embrittlement has been proposed to explain both intermediate- and deep-focus earthquakes in subduction zones. Because such earthquakes primarily occur at shallow depths or within the core of the subducting plate, dehydration at relatively low temperatures has been emphasized. However, recent careful reloca...

journal_title：Nature

authors： Zhang J,Green HW,Bozhilov K,Jin Z

更新日期：2004-04-08 00:00:00

abstract：:Height is a highly heritable, classic polygenic trait with approximately 700 common associated variants identified through genome-wide association studies so far. Here, we report 83 height-associated coding variants with lower minor-allele frequencies (in the range of 0.1-4.8%) and effects of up to 2 centimetres per a...

journal_title：Nature

authors： Marouli E,Graff M,Medina-Gomez C,Lo KS,Wood AR,Kjaer TR,Fine RS,Lu Y,Schurmann C,Highland HM,Rüeger S,Thorleifsson G,Justice AE,Lamparter D,Stirrups KE,Turcot V,Young KL,Winkler TW,Esko T,Karaderi T,Locke AE,Mas

更新日期：2017-02-09 00:00:00

abstract：:Circumstellar accretion disks transfer matter from molecular clouds to young stars and to the sites of planet formation. The disks observed around pre-main-sequence stars have properties consistent with those expected for the pre-solar nebula from which our own Solar System formed 4.5 Gyr ago. But the 'debris' disks t...

journal_title：Nature

authors： Thi WF,Blake GA,van Dishoeck EF,van Zadelhoff GJ,Horn JM,Becklin EE,Mannings V,Sargent AI,van Den Ancker ME,Natta A

更新日期：2001-01-04 00:00:00

abstract：:In this Letter, in Fig. 3c and f the Saccharomyces cerevisiae and Escherichia coli networks were subject to both weight loss and node deletion, a combination of two types of perturbation, as opposed to weight loss only (as the labelling incorrectly indicated). The collapse in Fig. 3h was also obtained from this combin...

journal_title：Nature

authors： Gao J,Barzel B,Barabási AL

更新日期：2019-04-01 00:00:00

abstract：:Metastasis is a major cause of death in cancer patients and involves a multistep process including detachment of cancer cells from a primary cancer, invasion of surrounding tissue, spread through circulation, re-invasion and proliferation in distant organs. KiSS-1 is a human metastasis suppressor gene, that suppresses...

journal_title：Nature

authors： Ohtaki T,Shintani Y,Honda S,Matsumoto H,Hori A,Kanehashi K,Terao Y,Kumano S,Takatsu Y,Masuda Y,Ishibashi Y,Watanabe T,Asada M,Yamada T,Suenaga M,Kitada C,Usuki S,Kurokawa T,Onda H,Nishimura O,Fujino M

更新日期：2001-05-31 00:00:00

abstract：:We have used in vitro mutagenesis to identify a DNA sequence that is required for glucose regulation of the ADR2 locus of Saccharomyces cerevisiae. This region, located between 200 and 1,000 base pairs upstream of the structural gene for ADH II, has been identified by genetic and biochemical analysis as the site of AD...

journal_title：Nature

authors： Beier DR,Young ET

更新日期：1982-12-23 00:00:00

abstract：:The Rho-family GTPase, Cdc42, can regulate the actin cytoskeleton through activation of Wiskott-Aldrich syndrome protein (WASP) family members. Activation relieves an autoinhibitory contact between the GTPase-binding domain and the carboxy-terminal region of WASP proteins. Here we report the autoinhibited structure of...

journal_title：Nature

authors： Kim AS,Kakalis LT,Abdul-Manan N,Liu GA,Rosen MK

更新日期：2000-03-09 00:00:00

abstract：:The canonical Wnt/β-catenin signalling pathway governs diverse developmental, homeostatic and pathological processes. Palmitoylated Wnt ligands engage cell-surface frizzled (FZD) receptors and LRP5 and LRP6 co-receptors, enabling β-catenin nuclear translocation and TCF/LEF-dependent gene transactivation. Mutations in ...

journal_title：Nature

authors： Yan KS,Janda CY,Chang J,Zheng GXY,Larkin KA,Luca VC,Chia LA,Mah AT,Han A,Terry JM,Ootani A,Roelf K,Lee M,Yuan J,Li X,Bolen CR,Wilhelmy J,Davies PS,Ueno H,von Furstenberg RJ,Belgrader P,Ziraldo SB,Ordonez H,H

更新日期：2017-05-11 00:00:00

abstract：:Spectacular fossils from the Early Cretaceous Jehol Group of northeastern China have greatly expanded our knowledge of the diversity and palaeobiology of dinosaurs and early birds, and contributed to our understanding of the origin of birds, of flight, and of feathers. Pennaceous (vaned) feathers and integumentary fil...

journal_title：Nature

authors： Zhang F,Kearns SL,Orr PJ,Benton MJ,Zhou Z,Johnson D,Xu X,Wang X

更新日期：2010-02-25 00:00:00

abstract：:DNA replication in eukaryotes is strictly regulated by several mechanisms. A central step in this replication is the assembly of the heterohexameric minichromosome maintenance (MCM2-7) helicase complex at replication origins during G1 phase as an inactive double hexamer. Here, using cryo-electron microscopy, we report...

journal_title：Nature

authors： Li N,Zhai Y,Zhang Y,Li W,Yang M,Lei J,Tye BK,Gao N

更新日期：2015-08-13 00:00:00

abstract：:At one time the synthetic chemist's last resort, reactions catalysed by transition metals are now the preferred method for synthesizing many types of organic molecule. A recent success in this type of catalysis is the discovery of reactions that form bonds between carbon and heteroatoms (such as nitrogen, oxygen, sulp...

journal_title：Nature

authors： Hartwig JF

更新日期：2008-09-18 00:00:00

abstract：:Methane is an important greenhouse gas that is emitted from multiple natural and anthropogenic sources. Atmospheric methane concentrations have varied on a number of timescales in the past, but what has caused these variations is not always well understood. The different sources and sinks of methane have specific isot...

journal_title：Nature

authors： Sapart CJ,Monteil G,Prokopiou M,van de Wal RS,Kaplan JO,Sperlich P,Krumhardt KM,van der Veen C,Houweling S,Krol MC,Blunier T,Sowers T,Martinerie P,Witrant E,Dahl-Jensen D,Röckmann T

更新日期：2012-10-04 00:00:00