Identification of a novel translation factor necessary for the incorporation of selenocysteine into protein.

abstract：:The two-dimensional electron system is a powerful laboratory for investigating the physics of interacting particles. Application of a large magnetic field produces massively degenerate quantum levels known as Landau levels; within a Landau level the kinetic energy of the electrons is suppressed, and electron-electron ...

journal_title：Nature

authors： Dial OE,Ashoori RC,Pfeiffer LN,West KW

更新日期：2010-03-25 00:00:00

abstract：:Regulatory T cells (Treg cells), a distinct subset of CD4+ T cells, are necessary for the maintenance of immune self-tolerance and homeostasis1,2. Recent studies have demonstrated that Treg cells exhibit a unique metabolic profile, characterized by an increase in mitochondrial metabolism relative to other CD4+ effecto...

journal_title：Nature

authors： Weinberg SE,Singer BD,Steinert EM,Martinez CA,Mehta MM,Martínez-Reyes I,Gao P,Helmin KA,Abdala-Valencia H,Sena LA,Schumacker PT,Turka LA,Chandel NS

更新日期：2019-01-01 00:00:00

abstract：:Little is known about the biochemical or functional nature of the proteins encoded by the bcl-2 gene, which undergoes chromosomal translocation in approximately 85% of follicular lymphoma, 20% of diffuse large cell lymphoma and 10% of chronic lymphocytic leukaemia of B cells. Translocation of bcl-2 sequences from chro...

journal_title：Nature

authors： Haldar S,Beatty C,Tsujimoto Y,Croce CM

更新日期：1989-11-09 00:00:00

abstract：:It has been speculated that brain activities might directly control adaptive immune responses in lymphoid organs, although there is little evidence for this. Here we show that splenic denervation in mice specifically compromises the formation of plasma cells during a T cell-dependent but not T cell-independent immune ...

journal_title：Nature

authors： Zhang X,Lei B,Yuan Y,Zhang L,Hu L,Jin S,Kang B,Liao X,Sun W,Xu F,Zhong Y,Hu J,Qi H

更新日期：2020-05-01 00:00:00

abstract：:Neuropeptide Y (NPY) has a number of functions in mammalian physiology. Here we identify a role for NPY in promoting proliferation of postnatal neuronal precursor cells. NPY is synthesized in the postnatal olfactory epithelium by sustentacular cells, previously proposed to function only in structural support. Mice wit...

journal_title：Nature

authors： Hansel DE,Eipper BA,Ronnett GV

更新日期：2001-04-19 00:00:00

abstract：:Titan, the largest moon of Saturn, is the only satellite in the Solar System with a substantial atmosphere. The atmosphere is poorly understood and obscures the surface, leading to intense speculation about Titan's nature. Here we present observations of Titan from the imaging science experiment onboard the Cassini sp...

journal_title：Nature

authors： Porco CC,Baker E,Barbara J,Beurle K,Brahic A,Burns JA,Charnoz S,Cooper N,Dawson DD,Del Genio AD,Denk T,Dones L,Dyudina U,Evans MW,Fussner S,Giese B,Grazier K,Helfenstein P,Ingersoll AP,Jacobson RA,Johnson TV,McE

更新日期：2005-03-10 00:00:00

abstract：:In this Letter, errors in Supplementary Table 1 have been corrected. ...

journal_title：Nature

authors： Song XP,Hansen MC,Stehman SV,Potapov PV,Tyukavina A,Vermote EF,Townshend JR

更新日期：2018-11-01 00:00:00

abstract：:Since Bridgman's discovery of five solid water (H2O) ice phases1 in 1912, studies on the extraordinary polymorphism of H2O have documented more than seventeen crystalline and several amorphous ice structures2,3, as well as rich metastability and kinetic effects4,5. This unique behaviour is due in part to the geometric...

journal_title：Nature

authors： Millot M,Coppari F,Rygg JR,Correa Barrios A,Hamel S,Swift DC,Eggert JH

更新日期：2019-05-01 00:00:00

abstract：:The Nuffield Council on Bioethics suggests that introgression of genetic material into related species in centres of crop biodiversity is an insufficient justification to bar the use of genetically modified crops in the developing world. They consider that a precautionary approach to forgo the possible benefits invoke...

journal_title：Nature

authors： Celis C,Scurrah M,Cowgill S,Chumbiauca S,Green J,Franco J,Main G,Kiezebrink D,Visser RG,Atkinson HJ

更新日期：2004-11-11 00:00:00

abstract：:The growth of plants depends on continuous function of the meristems. Shoot meristems are responsible for all the post-embryonic aerial organs, such as leaves, stems and flowers. It has been assumed that the phytohormone cytokinin has a positive role in shoot meristem function. A severe reduction in the size of merist...

journal_title：Nature

authors： Kurakawa T,Ueda N,Maekawa M,Kobayashi K,Kojima M,Nagato Y,Sakakibara H,Kyozuka J

更新日期：2007-02-08 00:00:00

abstract：:The three-dimensional structure of the 66-amino acid cro repressor protein of bacteriophage lambda suggests how it binds to its operator DNA. We propose that a dimer of cro protein is bound to the B-form of DNA with the 2-fold axis of the dimer coincident with the 2-fold axis of DNA. A pair of 2-fold-related alpha-hel...

journal_title：Nature

authors： Anderson WF,Ohlendorf DH,Takeda Y,Matthews BW

更新日期：1981-04-30 00:00:00

abstract：:In vast areas of the ocean, the scarcity of iron controls the growth and productivity of phytoplankton. Although most dissolved iron in the marine environment is complexed with organic molecules, picomolar amounts of labile inorganic iron species (labile iron) are maintained within the euphotic zone and serve as an im...

journal_title：Nature

authors： McQuaid JB,Kustka AB,Oborník M,Horák A,McCrow JP,Karas BJ,Zheng H,Kindeberg T,Andersson AJ,Barbeau KA,Allen AE

更新日期：2018-03-22 00:00:00

abstract：:The actions of many peptide growth factors include both stimulation and inhibition of cell proliferation, as well as effects unrelated to the control of cell growth. One peptide can have both stimulatory and inhibitory activity in a single cell, depending on the context of the other signal molecules present. ...

journal_title：Nature

authors： Sporn MB,Roberts AB

更新日期：1988-03-17 00:00:00

abstract：:Regulated fusion of secretory granules with the plasma membrane in secretory cells requires ATP, Ca2+ and cytosolic as well as membrane proteins. ATP-dependent steps in Ca(2+)-activated secretion from PC12 cells require three cytosolic PEP proteins (priming in exocytosis proteins, PEP1-3), the identity of which will p...

journal_title：Nature

authors： Hay JC,Fisette PL,Jenkins GH,Fukami K,Takenawa T,Anderson RA,Martin TF

更新日期：1995-03-09 00:00:00

abstract：:Plants encounter a myriad of microorganisms, particularly at the root-soil interface, that can invade with detrimental or beneficial outcomes. Prevalent beneficial associations between plants and microorganisms include those that promote plant growth by facilitating the acquisition of limiting nutrients such as nitrog...

journal_title：Nature

authors： Zipfel C,Oldroyd GE

更新日期：2017-03-15 00:00:00

abstract：:Cyclic ADP-ribose (cADPR) is a newly identified nucleotide which can release calcium from a variety of cells, suggesting it is a messenger for mobilizing internal Ca2+ stores. Its cyclic structure has now been confirmed by X-ray crystallography. Available results are consistent with it being a modulator of Ca(2+)-indu...

journal_title：Nature

authors： Lee HC,Aarhus R,Graeff R,Gurnack ME,Walseth TF

更新日期：1994-07-28 00:00:00

abstract：:Several discoveries of Late Devonian tetrapods (limbed vertebrates) have been made during the past two decades, but each has been confined to one locality. Here we describe a tetrapod jaw of about 365 million years (Myr) old from the Famennian of Belgium, which is the first from western continental Europe. The jaw clo...

journal_title：Nature

authors： Clément G,Ahlberg PE,Blieck A,Blom H,Clack JA,Poty E,Thorez J,Janvier P

更新日期：2004-01-29 00:00:00

abstract：:The basolateral amygdala (BLA) has a crucial role in emotional learning irrespective of valence. The BLA projection to the nucleus accumbens (NAc) is thought to modulate cue-triggered motivated behaviours, but our understanding of the interaction between these two brain regions has been limited by the inability to man...

journal_title：Nature

authors： Stuber GD,Sparta DR,Stamatakis AM,van Leeuwen WA,Hardjoprajitno JE,Cho S,Tye KM,Kempadoo KA,Zhang F,Deisseroth K,Bonci A

更新日期：2011-06-29 00:00:00

abstract：:Opsin, the ligand-free form of the G-protein-coupled receptor rhodopsin, at low pH adopts a conformationally distinct, active G-protein-binding state known as Ops*. A synthetic peptide derived from the main binding site of the heterotrimeric G protein-the carboxy terminus of the alpha-subunit (GalphaCT)-stabilizes Ops...

journal_title：Nature

authors： Scheerer P,Park JH,Hildebrand PW,Kim YJ,Krauss N,Choe HW,Hofmann KP,Ernst OP

更新日期：2008-09-25 00:00:00

abstract：:Human T-cell leukaemia virus (HTLV), first isolated in the United States from a patient with cutaneous T-cell lymphoma, is a unique horizontally transmitted retrovirus which is highly associated with certain adult T-cell malignancies. Also, HTLV can be transmitted in vitro to cord blood T-lymphocytes. In the accompany...

journal_title：Nature

authors： Clarke MF,Gelmann EP,Reitz MS Jr

更新日期：1983-09-01 00:00:00

abstract：:Strong interactions between electrons in a solid material can lead to surprising properties. A prime example is the Mott insulator, in which suppression of conductivity occurs as a result of interactions rather than a filled Bloch band. Proximity to the Mott insulating phase in fermionic systems is the origin of many ...

journal_title：Nature

authors： Jördens R,Strohmaier N,Günter K,Moritz H,Esslinger T

更新日期：2008-09-11 00:00:00

abstract：:The existence in the ocean of deep western boundary currents, which connect the high-latitude regions where deep water is formed with upwelling regions as part of the global ocean circulation, was postulated more than 40 years ago. These ocean currents have been found adjacent to the continental slopes of all ocean ba...

journal_title：Nature

authors： Dengler M,Schott FA,Eden C,Brandt P,Fischer J,Zantopp RJ

更新日期：2004-12-23 00:00:00

abstract：:NMDA (N-methyl-d-aspartate) receptors (NMDARs) are a principal subtype of excitatory ligand-gated ion channel with prominent roles in physiological and disease processes in the central nervous system. Recognition that glycine potentiates NMDAR-mediated currents as well as being a requisite co-agonist of the NMDAR subt...

journal_title：Nature

authors： Nong Y,Huang YQ,Ju W,Kalia LV,Ahmadian G,Wang YT,Salter MW

更新日期：2003-03-20 00:00:00

abstract：:Topological insulators-materials that are insulating in the bulk but allow electrons to flow on their surface-are striking examples of materials in which topological invariants are manifested in robustness against perturbations such as defects and disorder1. Their most prominent feature is the emergence of edge states...

journal_title：Nature

authors： Klembt S,Harder TH,Egorov OA,Winkler K,Ge R,Bandres MA,Emmerling M,Worschech L,Liew TCH,Segev M,Schneider C,Höfling S

更新日期：2018-10-01 00:00:00

abstract：:Studies of galaxy surveys in the context of the cold dark matter paradigm have shown that the mass of the dark matter halo and the total stellar mass are coupled through a function that varies smoothly with mass. Their average ratio Mhalo/Mstars has a minimum of about 30 for galaxies with stellar masses near that of t...

journal_title：Nature

authors： van Dokkum P,Danieli S,Cohen Y,Merritt A,Romanowsky AJ,Abraham R,Brodie J,Conroy C,Lokhorst D,Mowla L,O'Sullivan E,Zhang J

更新日期：2018-03-28 00:00:00

abstract：:The cyc- variants of S49 lymphoma cells have served as powerful tools for studying the components and mechanisms of hormone-induced adenylate cyclase stimulation, as these cells are deficient in the guanine nucleotide regulatory site (Ns) mediating hormone, guanine nucleotide, cholera toxin and fluoride-induced stimul...

journal_title：Nature

authors： Jakobs KH,Aktories K,Schultz G

更新日期：1983-05-12 00:00:00

abstract：:Long-term potentiation (LTP) in the hippocampus is widely studied as the mechanisms involved in its induction and maintenance are believed to underlie fundamental properties of learning and memory in vertebrates. Most synapses that exhibit LTP use an excitatory amino-acid neurotransmitter that acts on two types of rec...

journal_title：Nature

authors： Davies SN,Lester RA,Reymann KG,Collingridge GL

更新日期：1989-04-06 00:00:00

abstract：:Chronic myeloid leukaemia (CML) is caused by a defined genetic abnormality that generates BCR-ABL, a constitutively active tyrosine kinase. It is widely believed that BCR-ABL activates Akt signalling that suppresses the forkhead O transcription factors (FOXO), supporting the proliferation or inhibiting the apoptosis o...

journal_title：Nature

authors： Naka K,Hoshii T,Muraguchi T,Tadokoro Y,Ooshio T,Kondo Y,Nakao S,Motoyama N,Hirao A

更新日期：2010-02-04 00:00:00

abstract：:For a system at a temperature of absolute zero, all thermal fluctuations are frozen out, while quantum fluctuations prevail. These microscopic quantum fluctuations can induce a macroscopic phase transition in the ground state of a many-body system when the relative strength of two competing energy terms is varied acro...

journal_title：Nature

authors： Greiner M,Mandel O,Esslinger T,Hänsch TW,Bloch I

更新日期：2002-01-03 00:00:00

abstract：:Interactions between animal viruses and antiviral antisera may exceptionally result in an apparent increase in viral infectivity. Halstead and coworkers demonstrated enhanced replication of dengue virus (a Flavivirus, family Togaviridae) in human or simian peripheral blood leucocytes carrying Fc receptors at subneutra...

journal_title：Nature

authors： Peiris JS,Porterfield JS

更新日期：1979-11-29 00:00:00