Progression of autoimmune diabetes driven by avidity maturation of a T-cell population.

abstract：:Complementary DNAs for two distinct anglerfish somatostatin peptides (termed I and II) have been cloned in bacterial plasmids and sequenced. The nucleotide sequence for somatostatin I encodes a large percursor peptide (molecular weight 13,300) in which the somatostatin hormones is at the carboxyl terminus. The predict...

journal_title：Nature

authors： Hobart P,Crawford R,Shen L,Pictet R,Rutter WJ

更新日期：1980-11-13 00:00:00

abstract：:Transmission of obligate bacterial symbionts between generations is vital for the survival of the host. Although the larvae of certain hydrothermal vent tubeworms (Vestimentifera, Siboglinidae) are symbiont-free and possess a transient digestive system, these structures are lost during development, resulting in adult ...

journal_title：Nature

authors： Nussbaumer AD,Fisher CR,Bright M

更新日期：2006-05-18 00:00:00

abstract：:Sea-level histories during the two most recent deglacial-interglacial intervals show substantial differences1-3 despite both periods undergoing similar changes in global mean temperature4,5 and forcing from greenhouse gases6. Although the last interglaciation (LIG) experienced stronger boreal summer insolation forcing...

journal_title：Nature

authors： Clark PU,He F,Golledge NR,Mitrovica JX,Dutton A,Hoffman JS,Dendy S

更新日期：2020-01-01 00:00:00

abstract：:Neuroblastoma, the most common paediatric solid tumour, arises from defective neural crest cells. Genetic alterations occur frequently in the most aggressive neuroblastomas. In particular, deletion or suppression of the proapoptotic enzyme caspase-8 is common in malignant, disseminated disease, although the effect of ...

journal_title：Nature

authors： Stupack DG,Teitz T,Potter MD,Mikolon D,Houghton PJ,Kidd VJ,Lahti JM,Cheresh DA

更新日期：2006-01-05 00:00:00

abstract：:Separation of eukaryotic sister chromatids during the cell cycle is timed by the spindle assembly checkpoint (SAC) and ultimately triggered when separase cleaves cohesion-mediating cohesin1-3. Silencing of the SAC during metaphase activates the ubiquitin ligase APC/C (anaphase-promoting complex, also known as the cycl...

journal_title：Nature

authors： Hellmuth S,Gómez-H L,Pendás AM,Stemmann O

更新日期：2020-04-01 00:00:00

abstract：:Because monoclonal antibodies can recognize and bind to specific groups of atoms such as tumour antigens, they have promise for use in vivo as carriers of radionuclides, drugs or other appended molecules for diagnosis and treatment of disease. Attachment of metal ions to antibodies by means of bifunctional chelating a...

journal_title：Nature

authors： Reardan DT,Meares CF,Goodwin DA,McTigue M,David GS,Stone MR,Leung JP,Bartholomew RM,Frincke JM

更新日期：1985-07-18 00:00:00

abstract：:Many proteins are expressed in distinct embryonic and adult forms. However, in most cases we do not know why the embryonic form of proteins is required. This question can be readily addressed for the acetylcholine receptor (AChR) because developmentally specified modifications of this ligand-gated ion channel can be d...

journal_title：Nature

authors： Jaramillo F,Vicini S,Schuetze SM

更新日期：1988-09-01 00:00:00

abstract：:Coronavirus disease 2019 (COVID-19) is a disease caused by infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and has resulted in a pandemic1. The C5a complement factor and its receptor C5aR1 (also known as CD88) have a key role in the initiation and maintenance of several inflammatory respons...

journal_title：Nature

authors： Carvelli J,Demaria O,Vély F,Batista L,Chouaki Benmansour N,Fares J,Carpentier S,Thibult ML,Morel A,Remark R,André P,Represa A,Piperoglou C,Explore COVID-19 IPH group.,Explore COVID-19 Marseille Immunopole group.,Cordier PY

更新日期：2020-12-01 00:00:00

abstract：:Lake Victoria, together with its satellite lakes, harbours roughly 200 endemic forms of cichlid fishes that are classified as 'haplochromines' and yet the lake system is less than a million years old. This 'flock' has attracted attention because of the possibility that it evolved within the lake from one ancestral spe...

journal_title：Nature

authors： Meyer A,Kocher TD,Basasibwaki P,Wilson AC

更新日期：1990-10-11 00:00:00

abstract：:Although a few cancer genes are mutated in a high proportion of tumours of a given type (>20%), most are mutated at intermediate frequencies (2-20%). To explore the feasibility of creating a comprehensive catalogue of cancer genes, we analysed somatic point mutations in exome sequences from 4,742 human cancers and the...

journal_title：Nature

authors： Lawrence MS,Stojanov P,Mermel CH,Robinson JT,Garraway LA,Golub TR,Meyerson M,Gabriel SB,Lander ES,Getz G

更新日期：2014-01-23 00:00:00

abstract：:Piezoelectric materials, which convert mechanical to electrical energy (and vice versa), are crucial in medical imaging, telecommunication and ultrasonic devices. A new generation of single-crystal materials, such as Pb(Zn1/3Nb2/3)O3-PbTiO3 (PZN-PT) and Pb(Mg1/3Nb2/3)O3-PbTiO3 (PMN-PT), exhibit a piezoelectric effect ...

journal_title：Nature

authors： Fu H,Cohen RE

更新日期：2000-01-20 00:00:00

abstract：:Sodium channels and receptors to serotonin and kainate were 'transplanted' from human brain into frog oocytes, by isolating messenger RNA from a fetal brain, and injecting it into Xenopus laevis oocytes. The mRNA was translated by the oocyte and induced the appearance of functional receptors and channels in its membra...

journal_title：Nature

authors： Gundersen CB,Miledi R,Parker I

更新日期：1984-03-29 00:00:00

abstract：:Morphogens act in developing tissues to control the spatial arrangement of cellular differentiation. The activity of a morphogen has generally been viewed as a concentration-dependent response to a diffusible signal, but the duration of morphogen signalling can also affect cellular responses. One such example is the m...

journal_title：Nature

authors： Dessaud E,Yang LL,Hill K,Cox B,Ulloa F,Ribeiro A,Mynett A,Novitch BG,Briscoe J

更新日期：2007-11-29 00:00:00

abstract：:A multitude of heptahelical receptors use heterotrimeric G proteins to transduce signals to specific effector target molecules. The G protein transducin, Gt, couples photon-activated rhodopsin with the effector cyclic GMP phosophodiesterase (PDE) in the vertebrate phototransduction cascade. The interactions of the Gt ...

journal_title：Nature

authors： Slep KC,Kercher MA,He W,Cowan CW,Wensel TG,Sigler PB

更新日期：2001-02-22 00:00:00

abstract：:C-type (Ca(2+)-dependent) animal lectins such as mannose-binding proteins mediate many cell-surface carbohydrate-recognition events. The crystal structure at 1.7 A resolution of the carbohydrate-recognition domain of rat mannose-binding protein complexed with an oligomannose asparaginyl-oligosaccharide reveals that Ca...

journal_title：Nature

authors： Weis WI,Drickamer K,Hendrickson WA

更新日期：1992-11-12 00:00:00

abstract：:T cells become dysfunctional when they encounter self antigens or are exposed to chronic infection or to the tumour microenvironment1. The function of T cells is tightly regulated by a combinational co-stimulatory signal, and dominance of negative co-stimulation results in T cell dysfunction2. However, the molecular m...

journal_title：Nature

authors： Liu X,Wang Y,Lu H,Li J,Yan X,Xiao M,Hao J,Alekseev A,Khong H,Chen T,Huang R,Wu J,Zhao Q,Wu Q,Xu S,Wang X,Jin W,Yu S,Wang Y,Wei L,Wang A,Zhong B,Ni L,Liu X,Nurieva R,Ye L,Tian Q,Bian XW,Dong C

更新日期：2019-03-01 00:00:00

abstract：:Gram-negative bacteria, such as Escherichia coli, expel toxic chemicals through tripartite efflux pumps that span both the inner and outer membrane. The three parts are an inner membrane, substrate-binding transporter; a membrane fusion protein; and an outer-membrane-anchored channel. The fusion protein connects the t...

journal_title：Nature

authors： Su CC,Long F,Zimmermann MT,Rajashankar KR,Jernigan RL,Yu EW

更新日期：2011-02-24 00:00:00

abstract：:Asteroids are primitive Solar System bodies that evolve both collisionally and through disruptions arising from rapid rotation. These processes can lead to the formation of binary asteroids and to the release of dust, both directly and, in some cases, through uncovering frozen volatiles. In a subset of the asteroids c...

journal_title：Nature

authors： Agarwal J,Jewitt D,Mutchler M,Weaver H,Larson S

更新日期：2017-09-20 00:00:00

abstract：:Of the vertebrate senses, touch is the least understood at the molecular level The ion channels that form the core of the mechanosensory complex and confer touch sensitivity remain unknown. However, the similarity of the brain sodium channel 1 (BNC1) to nematode proteins involved in mechanotransduction indicated that ...

journal_title：Nature

authors： Price MP,Lewin GR,McIlwrath SL,Cheng C,Xie J,Heppenstall PA,Stucky CL,Mannsfeldt AG,Brennan TJ,Drummond HA,Qiao J,Benson CJ,Tarr DE,Hrstka RF,Yang B,Williamson RA,Welsh MJ

更新日期：2000-10-26 00:00:00

abstract：:The superposition principle is a fundamental tenet of quantum mechanics. It allows a quantum system to be 'in two places at the same time', because the quantum state of a physical system can simultaneously include measurably different physical states. The preparation and use of such superposed states forms the basis o...

journal_title：Nature

authors： Hofheinz M,Wang H,Ansmann M,Bialczak RC,Lucero E,Neeley M,O'Connell AD,Sank D,Wenner J,Martinis JM,Cleland AN

更新日期：2009-05-28 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：:Mutants of cdc2+ can disrupt the dependency of S phase on completion of the previous mitosis. By changing the state of p34cdc2 it is possible to reprogramme a cell from entering mitosis to undergoing S phase. This leads to the proposal that the cell cycle can be considered a p34cdc2 cycle, and has implications for the...

journal_title：Nature

authors： Broek D,Bartlett R,Crawford K,Nurse P

更新日期：1991-01-31 00:00:00

abstract：:Highly efficient neutron detectors are critical in many sectors, including national security1,2, medicine3, crystallography4 and astronomy5. The main neutron detection technologies currently used involve 3He-gas-filled proportional counters6 and light scintillators7 for thermalized neutrons. Semiconductors could provi...

journal_title：Nature

authors： Chica DG,He Y,McCall KM,Chung DY,Pak RO,Trimarchi G,Liu Z,De Lurgio PM,Wessels BW,Kanatzidis MG

更新日期：2020-01-01 00:00:00

abstract：:Mammalian neurons contain at least three types of excitatory amino-acid receptors, selectively activated by N-methyl-D-aspartate (NMDA) or aspartate, (S)-alpha-amino-3-hydroxy-5-methyl-4-isoxazole proprionate ((S)-AMPA) and kainate. An important aspect of NMDA receptors is their regulation by a variety of factors such...

journal_title：Nature

authors： Traynelis SF,Cull-Candy SG

更新日期：1990-05-24 00:00:00

abstract：:Support-free high-speed countercurrent liquid chromatography provides a rich domain of applications, some beyond reach of conventional liquid chromatography. ...

journal_title：Nature

authors： Ito Y

更新日期：1987-03-26 00:00:00

abstract：:Superantigens bind class II major histocompatibility proteins and stimulate powerful proliferative responses of T lymphocytes bearing particular V beta sequences as part of their alpha beta antigen receptor. Exogenous bacterial superantigens are responsible for food poisoning and toxic shock syndrome. Murine virus-enc...

journal_title：Nature

authors： Lafon M,Lafage M,Martinez-Arends A,Ramirez R,Vuillier F,Charron D,Lotteau V,Scott-Algara D

更新日期：1992-08-06 00:00:00

abstract：:The maternal gene bicoid (bcd) determines pattern in the anterior half of the Drosophila embryo. It is reported here that the injection of bcd mutant embryos with messenger RNAs that encode proteins consisting of heterologous acidic transcriptional activating sequences fused to the DNA-binding portion of the bcd gene ...

journal_title：Nature

authors： Driever W,Ma J,Nüsslein-Volhard C,Ptashne M

更新日期：1989-11-09 00:00:00

abstract：:The first open meeting to discuss the growing issue of commercialism in academic research was convened by the New York Bar Association's patent committee. Participants included Steven Muller, president of Johns Hopkins University, Joshua Lederberg, president of Rockefeller University, and A. Thomas Bartlett, presiden...

journal_title：Nature

authors： Stein MD

更新日期：1982-04-29 00:00:00

abstract：:Reprogramming somatic cells into induced pluripotent stem cells (iPSCs) has been suspected of causing de novo copy number variation. To explore this issue, here we perform a whole-genome and transcriptome analysis of 20 human iPSC lines derived from the primary skin fibroblasts of seven individuals using next-generati...

journal_title：Nature

authors： Abyzov A,Mariani J,Palejev D,Zhang Y,Haney MS,Tomasini L,Ferrandino AF,Rosenberg Belmaker LA,Szekely A,Wilson M,Kocabas A,Calixto NE,Grigorenko EL,Huttner A,Chawarska K,Weissman S,Urban AE,Gerstein M,Vaccarino FM

更新日期：2012-12-20 00:00:00

abstract：:Transcriptional silencing of the HM mating-type loci in the yeast Saccharomyces cerevisiae is caused by the localized formation of an altered chromatin structure, analogous to heterochromatin in higher eukaryotes. Silencing depends on cis-acting sequences, termed silencers, as well as several trans-acting factors, inc...

journal_title：Nature

authors： Triolo T,Sternglanz R

更新日期：1996-05-16 00:00:00