Specific recognition of staphylococcal enterotoxin A by human T cells bearing receptors with the V gamma 9 region.

abstract：:The hippocampus is an important part of the limbic system in the human brain that has essential roles in spatial navigation and the consolidation of information from short-term memory to long-term memory1,2. Here we use single-cell RNA sequencing and assay for transposase-accessible chromatin using sequencing (ATAC-se...

journal_title：Nature

authors： Zhong S,Ding W,Sun L,Lu Y,Dong H,Fan X,Liu Z,Chen R,Zhang S,Ma Q,Tang F,Wu Q,Wang X

更新日期：2020-01-01 00:00:00

abstract：:The homeobox is a 183-base-pair DNA sequence originally found in Drosophila segmentation and homeotic genes. In Drosophila, homeotic genes are clustered in the Antennapedia and Bithorax complexes, collectively called the homeotic gene complex (HOM-C). In the mouse genome, about 40 homeobox genes (Hox) are clustered in...

journal_title：Nature

authors： Tomotsune D,Shoji H,Wakamatsu Y,Kondoh H,Takahashi N

更新日期：1993-09-02 00:00:00

abstract：:The carbothermal reduction of silica into silicon requires the use of temperatures well above the silicon melting point (> or =2,000 degrees C). Solid silicon has recently been generated directly from silica at much lower temperatures (< or =850 degrees C) via electrochemical reduction in molten salts. However, the si...

journal_title：Nature

authors： Bao Z,Weatherspoon MR,Shian S,Cai Y,Graham PD,Allan SM,Ahmad G,Dickerson MB,Church BC,Kang Z,Abernathy HW 3rd,Summers CJ,Liu M,Sandhage KH

更新日期：2007-03-08 00:00:00

abstract：:The crystal structure of Escherichia coli GroEL shows a porous cylinder of 14 subunits made of two nearly 7-fold rotationally symmetrical rings stacked back-to-back with dyad symmetry. The subunits consist of three domains: a large equatorial domain that forms the foundation of the assembly at its waist and holds the ...

journal_title：Nature

authors： Braig K,Otwinowski Z,Hegde R,Boisvert DC,Joachimiak A,Horwich AL,Sigler PB

更新日期：1994-10-13 00:00:00

abstract：:Apoptosis is a highly regulated process that is crucial for normal development and homeostasis of multicellular organisms. The p35 protein from baculoviruses effectively prevents apoptosis by its broad-spectrum caspase inhibition. Here we report the crystal structure of p35 in complex with human caspase-8 at 3.0 A res...

journal_title：Nature

authors： Xu G,Cirilli M,Huang Y,Rich RL,Myszka DG,Wu H

更新日期：2001-03-22 00:00:00

abstract：:It has been suggested that the initiation step in mouse skin carcinogenesis involves an alteration in epidermal-differentiation, as mouse basal keratinocytes exposed to initiators resist the arrest of cell growth that is normally associated with the induction of terminal differentiation by calcium ions. The growth of ...

journal_title：Nature

authors： Yuspa SH,Kilkenny AE,Stanley J,Lichti U

更新日期：1985-04-04 00:00:00

abstract：:Dehydration or desiccation is one of the most frequent and severe challenges to living cells. The bacterium Deinococcus radiodurans is the best known extremophile among the few organisms that can survive extremely high exposures to desiccation and ionizing radiation, which shatter its genome into hundreds of short DNA...

journal_title：Nature

authors： Zahradka K,Slade D,Bailone A,Sommer S,Averbeck D,Petranovic M,Lindner AB,Radman M

更新日期：2006-10-05 00:00:00

abstract：:The evolutionary divergence of a single species into two has never been directly observed in nature, primarily because speciation can take a long time to occur. A ring species, in which a chain of intergrading populations encircles a barrier and the terminal forms coexist without interbreeding, provides a situation in...

journal_title：Nature

authors： Irwin DE,Bensch S,Price TD

更新日期：2001-01-18 00:00:00

abstract：:Organ-specific metastasis is governed, in part, by interactions between chemokine receptors on cancer cells and matching chemokines in target organs. For example, malignant breast cancer cells express the chemokine receptor CXCR4 and commonly metastasize to organs that are an abundant source of the CXCR4-specific liga...

journal_title：Nature

authors： Staller P,Sulitkova J,Lisztwan J,Moch H,Oakeley EJ,Krek W

更新日期：2003-09-18 00:00:00

abstract：:Large low-velocity seismic anomalies have been detected in the Earth's lower mantle beneath Africa and the Pacific Ocean that are not easily explained by temperature variations alone. The African anomaly has been interpreted to be a northwest-southeast-trending structure with a sharp-edged linear, ridge-like morpholog...

journal_title：Nature

authors： McNamara AK,Zhong S

更新日期：2005-10-20 00:00:00

abstract：:Most stars become white dwarfs after they have exhausted their nuclear fuel (the Sun will be one such). Between one-quarter and one-half of white dwarfs have elements heavier than helium in their atmospheres, even though these elements ought to sink rapidly into the stellar interiors (unless they are occasionally repl...

journal_title：Nature

authors： Vanderburg A,Johnson JA,Rappaport S,Bieryla A,Irwin J,Lewis JA,Kipping D,Brown WR,Dufour P,Ciardi DR,Angus R,Schaefer L,Latham DW,Charbonneau D,Beichman C,Eastman J,McCrady N,Wittenmyer RA,Wright JT

更新日期：2015-10-22 00:00:00

abstract：:Since at least the last common ancestor of all life on Earth, genetic information has been stored in a four-letter alphabet that is propagated and retrieved by the formation of two base pairs. The central goal of synthetic biology is to create new life forms and functions, and the most general route to this goal is th...

journal_title：Nature

authors： Zhang Y,Ptacin JL,Fischer EC,Aerni HR,Caffaro CE,San Jose K,Feldman AW,Turner CR,Romesberg FE

更新日期：2017-11-29 00:00:00

abstract：:Tumour cells become addicted to the expression of initiating oncogenes like Ras, such that loss of oncogene expression in established tumours leads to tumour regression. HRas, NRas or KRas are mutated to remain in the active GTP-bound oncogenic state in many cancers. Although Ras activates several proteins to initiate...

journal_title：Nature

authors： Lim KH,Ancrile BB,Kashatus DF,Counter CM

更新日期：2008-04-03 00:00:00

abstract：: ...

journal_title：Nature

authors：

更新日期：2019-01-01 00:00:00

abstract：:In the frog Xenopus, the somatic-type 5S ribosomal RNA genes are active in all cells; the oocyte-type 5S genes are active in oocytes but not in somatic cells. A new method of native gel electrophoresis resolves the two types of 5S RNA which are of the same length but different sequence. When somatic nuclei were inject...

journal_title：Nature

authors： Korn LJ,Gurdon JB

更新日期：1981-02-05 00:00:00

abstract：:Slower recovery from perturbations near a tipping point and its indirect signatures in fluctuation patterns have been suggested to foreshadow catastrophes in a wide variety of systems. Recent studies of populations in the field and in the laboratory have used time-series data to confirm some of the theoretically predi...

journal_title：Nature

authors： Dai L,Korolev KS,Gore J

更新日期：2013-04-18 00:00:00

abstract：:Cryptosporidium species cause acute gastroenteritis and diarrhoea worldwide. They are members of the Apicomplexa--protozoan pathogens that invade host cells by using a specialized apical complex and are usually transmitted by an invertebrate vector or intermediate host. In contrast to other Apicomplexans, Cryptosporid...

journal_title：Nature

authors： Xu P,Widmer G,Wang Y,Ozaki LS,Alves JM,Serrano MG,Puiu D,Manque P,Akiyoshi D,Mackey AJ,Pearson WR,Dear PH,Bankier AT,Peterson DL,Abrahamsen MS,Kapur V,Tzipori S,Buck GA

更新日期：2004-10-28 00:00:00

abstract：:It has been known for some 50 years that birds use photoreceptors in or near the hypothalamus to mediate the photoperiodic responses that control seasonal breeding. So far, however, attempts to identify the photopigment by determining an action spectrum have failed. The problems stem from the selective filtering of li...

journal_title：Nature

authors： Foster RG,Follett BK,Lythgoe JN

更新日期：1985-01-03 00:00:00

abstract：:The developmental fate of immature thymocytes is determined by the specificity of their T-cell antigen receptors (TCRs). Immature CD4+8+ thymocytes are positively selected to differentiate into mature T cells by recognition of peptides associated with major histocompatibility complex (MHC) encoded molecules on thymic ...

journal_title：Nature

authors： Takahama Y,Suzuki H,Katz KS,Grusby MJ,Singer A

更新日期：1994-09-01 00:00:00

abstract：:Since the discovery that epidermal growth factor (EGF) can accelerate opening of the eyelids, the EGF receptor (EGF-R) has been extensively studied and is now considered to be a prototype tyrosine kinase receptor. Binding of EGF or of transforming growth factor-alpha (TGF-alpha) or other related factors activates the ...

journal_title：Nature

authors： Miettinen PJ,Berger JE,Meneses J,Phung Y,Pedersen RA,Werb Z,Derynck R

更新日期：1995-07-27 00:00:00

abstract：:Cancer genetics has for many years focused on mutational events that have their primary effect within the cancer cell. Recently that focus has widened, with evidence of the importance of epigenetic events and of cellular interactions in cancer development. The role of common genetic variation in determining the range ...

journal_title：Nature

authors： Ponder BA

更新日期：2001-05-17 00:00:00

abstract：:A CENTRAL assumption about long-term potentiation in the hippocampus is that the two classes of glutamate-receptor ion channel, the N-methyl-D-aspartate (NMDA) and the kainate/quisqualate (non-NMDA) subtypes, are co-localized at individual excitatory synapses. This assumption is important because of the perceived inte...

journal_title：Nature

authors： Bekkers JM,Stevens CF

更新日期：1989-09-21 00:00:00

abstract：:The most severe excursions in the Earth's climatic history are thought to be associated with Proterozoic glaciations. According to the 'Snowball Earth' hypothesis, the Marinoan glaciation, which ended about 635 million years ago, involved global or nearly global ice cover. At the termination of this glacial period, ra...

journal_title：Nature

authors： Allen PA,Hoffman PF

更新日期：2005-01-13 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：:The Colorado plateau is a large, tectonically intact, physiographic province in the southwestern North American Cordillera that stands at ∼1,800-2,000 m elevation and has long been thought to be in isostatic equilibrium. The origin of these high elevations is unclear because unlike the surrounding provinces, which hav...

journal_title：Nature

authors： Levander A,Schmandt B,Miller MS,Liu K,Karlstrom KE,Crow RS,Lee CT,Humphreys ED

更新日期：2011-04-28 00:00:00

abstract：:When an intense laser pulse is focused into a gas, the light-atom interaction that occurs as atoms are ionized results in an extremely nonlinear optical process--the generation of high harmonics of the driving laser frequency. Harmonics that extend up to orders of about 300 have been reported, some corresponding to ph...

journal_title：Nature

authors： Bartels R,Backus S,Zeek E,Misoguti L,Vdovin G,Christov IP,Murnane MM,Kapteyn HC

更新日期：2000-07-13 00:00:00

abstract：:All of the DNA synthesis genes of budding yeast examined so far are periodically expressed and hence under cell-cycle control (Table 1). Expression occurs near the G1/S phase boundary and the genes seem to be coordinately regulated (reviewed in ref. 4). The upstream promoter sequences of these genes have only a hexame...

journal_title：Nature

authors： Lowndes NF,Johnson AL,Johnston LH

更新日期：1991-03-21 00:00:00

abstract：: ...

journal_title：Nature

authors： Mallapaty S

更新日期：2018-12-01 00:00:00

abstract：:Ageing is a result of gradual and overall functional deteriorations across the body; however, it is unknown whether an individual tissue primarily works to mediate the ageing progress and control lifespan. Here we show that the hypothalamus is important for the development of whole-body ageing in mice, and that the un...

journal_title：Nature

authors： Zhang G,Li J,Purkayastha S,Tang Y,Zhang H,Yin Y,Li B,Liu G,Cai D

更新日期：2013-05-09 00:00:00

abstract：:Conifers have dominated forests for more than 200 million years and are of huge ecological and economic importance. Here we present the draft assembly of the 20-gigabase genome of Norway spruce (Picea abies), the first available for any gymnosperm. The number of well-supported genes (28,354) is similar to the >100 tim...

journal_title：Nature

authors： Nystedt B,Street NR,Wetterbom A,Zuccolo A,Lin YC,Scofield DG,Vezzi F,Delhomme N,Giacomello S,Alexeyenko A,Vicedomini R,Sahlin K,Sherwood E,Elfstrand M,Gramzow L,Holmberg K,Hällman J,Keech O,Klasson L,Koriabine M,K

更新日期：2013-05-30 00:00:00