HLA-E binds to natural killer cell receptors CD94/NKG2A, B and C.

abstract：:A single base-pair mutation (beta s) in codon 6 of the human beta-globin gene, causing a single amino-acid substitution, is the cause of sickle cell anaemia. The mutant haemoglobin molecule, HbS, polymerizes when deoxygenated and causes deformation of the erythrocytes to a characteristic 'sickled' shape. Sickling of c...

journal_title：Nature

authors： Greaves DR,Fraser P,Vidal MA,Hedges MJ,Ropers D,Luzzatto L,Grosveld F

更新日期：1990-01-11 00:00:00

abstract：:In general, heterozygous animal cells express both alleles at a particular locus. The only exceptions are cells of XX genotype after inactivation of one X chromosome, and immunoglobulin-producing cells; in each case only one of the two alleles is expressed in differentiated cells and their progeny. This phenomenon, te...

journal_title：Nature

authors： Joho R,Weissman IL

更新日期：1980-03-13 00:00:00

abstract：:Fireflies communicate with each other by emitting yellow-green to yellow-orange brilliant light. The bioluminescence reaction, which uses luciferin, Mg-ATP and molecular oxygen to yield an electronically excited oxyluciferin species, is carried out by the enzyme luciferase. Visible light is emitted during relaxation o...

journal_title：Nature

authors： Nakatsu T,Ichiyama S,Hiratake J,Saldanha A,Kobashi N,Sakata K,Kato H

更新日期：2006-03-16 00:00:00

abstract：:In the HTML version of this Letter, the affiliations for authors Andrew S. Azman, Dhirendra Kumar and Thandavarayan Ramamurthy were inverted (the PDF and print versions of the Letter were correct); the affiliations have been corrected online. ...

journal_title：Nature

authors： Weill FX,Domman D,Njamkepo E,Almesbahi AA,Naji M,Nasher SS,Rakesh A,Assiri AM,Sharma NC,Kariuki S,Pourshafie MR,Rauzier J,Abubakar A,Carter JY,Wamala JF,Seguin C,Bouchier C,Malliavin T,Bakhshi B,Abulmaali HHN,Kuma

更新日期：2019-02-01 00:00:00

abstract：:Alkaloids, secondary metabolites that contain basic nitrogen atoms, are some of the most well-known biologically active natural products in chemistry and medicine. Although efficient laboratory synthesis of alkaloids would enable the study and optimization of their biological properties, their preparation is often com...

journal_title：Nature

authors： Parr BT,Economou C,Herzon SB

更新日期：2015-09-24 00:00:00

abstract：:Macroscopic mechanical oscillators have been coaxed into a regime of quantum behaviour by direct refrigeration or a combination of refrigeration and laser-like cooling. This result supports the idea that mechanical oscillators may perform useful functions in the processing of quantum information with superconducting c...

journal_title：Nature

authors： Palomaki TA,Harlow JW,Teufel JD,Simmonds RW,Lehnert KW

更新日期：2013-03-14 00:00:00

abstract：:There have been many reports that eukaryotic cells contain ring-shaped 19S or 20S particles which are composed of numerous polypeptide subunits ranging in size between 25 and 35 kilodaltons. Because these particles seemed to copurify with inactive mRNA, they were assumed to function in regulating mRNA translation and ...

journal_title：Nature

authors： Arrigo AP,Tanaka K,Goldberg AL,Welch WJ

更新日期：1988-01-14 00:00:00

abstract：:Werner's syndrome (WS) is a rare autosomal recessive disease in which the affected individuals display symptoms of premature ageing. The substantial phenotypic overlap between WS and normal ageing indicates that these two conditions may have pathogenetic mechanisms in common. The WS mutation has pleiotropic effects, a...

journal_title：Nature

authors： Goto M,Rubenstein M,Weber J,Woods K,Drayna D

更新日期：1992-02-20 00:00:00

abstract：:Stable associations of more than one species of symbiont within a single host cell or tissue are assumed to be rare in metazoans because competition for space and resources between symbionts can be detrimental to the host. In animals with multiple endosymbionts, such as mussels from deep-sea hydrothermal vents and ree...

journal_title：Nature

authors： Dubilier N,Mülders C,Ferdelman T,de Beer D,Pernthaler A,Klein M,Wagner M,Erséus C,Thiermann F,Krieger J,Giere O,Amann R

更新日期：2001-05-17 00:00:00

abstract：:The amount of energy used to run a mile is nearly the same whether it is run at top speed or at a leisurely pace (although it is used more rapidly at the higher speed). This puzzling independence of energy cost and speed is found generally among running animals, although, on a per gram basis, cost is much higher for s...

journal_title：Nature

authors： Kram R,Taylor CR

更新日期：1990-07-19 00:00:00

abstract：:Neural mechanisms that mediate the ability to make value-guided decisions have received substantial attention in humans and animals1-6. Experiments in animals typically involve long training periods. By contrast, choices in the real world often need to be made between new options spontaneously. It is therefore possibl...

journal_title：Nature

authors： Bongioanni A,Folloni D,Verhagen L,Sallet J,Klein-Flügge MC,Rushworth MFS

更新日期：2021-01-06 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 Hubbard model, formulated by physicist John Hubbard in the 1960s1, is a simple theoretical model of interacting quantum particles in a lattice. The model is thought to capture the essential physics of high-temperature superconductors, magnetic insulators and other complex quantum many-body ground states2,3. Althou...

journal_title：Nature

authors： Tang Y,Li L,Li T,Xu Y,Liu S,Barmak K,Watanabe K,Taniguchi T,MacDonald AH,Shan J,Mak KF

更新日期：2020-03-01 00:00:00

abstract：:The internal organization of eukaryotic cells into functionally specialized, membrane-delimited organelles of unique composition implies a need for active, regulated lipid transport. Phosphatidylserine (PS), for example, is synthesized in the endoplasmic reticulum and then preferentially associates--through mechanisms...

journal_title：Nature

authors： Maeda K,Anand K,Chiapparino A,Kumar A,Poletto M,Kaksonen M,Gavin AC

更新日期：2013-09-12 00:00:00

abstract：:Retinoic acid may be the natural morphogen used to generate digit pattern in the chick limb bud. It has been proposed that retinoic acid acts by binding to a cellular retinoic acid-binding protein (CRABP) and then entering the nucleus to alter the pattern of gene activity. High-affinity receptors that bind both retino...

journal_title：Nature

authors： Maden M,Ong DE,Summerbell D,Chytil F

更新日期：1988-10-20 00:00:00

abstract：:Mitogen-activated protein kinases, MAP kinases or ERKs (extracellular signal-regulated kinases) are rapidly stimulated by growth-promoting factors acting on a variety of cell-surface receptors. In turn, ERKs phosphorylate and regulate key intracellular enzymes and transcription factors involved in the control of cellu...

journal_title：Nature

authors： Crespo P,Xu N,Simonds WF,Gutkind JS

更新日期：1994-06-02 00:00:00

abstract：:Emerging infectious diseases present a formidable challenge to the conservation of native species in the twenty-first century. Diseases caused by introduced pathogens have had large impacts on species abundances, including the American chestnut, Hawaiian bird species and many amphibians. Changes in host population siz...

journal_title：Nature

authors： LaDeau SL,Kilpatrick AM,Marra PP

更新日期：2007-06-07 00:00:00

abstract：:Macroscopic mechanical objects and electromagnetic degrees of freedom can couple to each other through radiation pressure. Optomechanical systems in which this coupling is sufficiently strong are predicted to show quantum effects and are a topic of considerable interest. Devices in this regime would offer new types of...

journal_title：Nature

authors： Thompson JD,Zwickl BM,Jayich AM,Marquardt F,Girvin SM,Harris JG

更新日期：2008-03-06 00:00:00

abstract：:The products of the classical human major histocompatibility complex (MHC) class I genes (HLA-A, -B, -C) are highly polymorphic molecules that bind peptides and present them to T lymphocytes. The non-polymorphic, non-classical MHC class I gene products (HLA-E, -F, -G) are not restricting elements for the majority of T...

journal_title：Nature

authors： Watkins DI,Chen ZW,Hughes AL,Evans MG,Tedder TF,Letvin NL

更新日期：1990-07-05 00:00:00

abstract：:Sensory systems can adapt to the conditions imposed on them. In the visual system, adapting to a pattern increases the threshold of the ability to see that pattern, and reduces the perceived contrast of the pattern above threshold. Most neurons of the striate cortex reduce their responsiveness after being stimulated f...

journal_title：Nature

authors： Snowden RJ,Hammett ST

更新日期：1992-01-16 00:00:00

abstract：:Shiga toxin and some other protein toxins that act on targets in the cytosol have previously been shown to enter the trans-Golgi network. Transport by this route may be necessary for translocation of the toxin to the cytosol and for intoxication, but it is not known whether the enzymatically active part of the toxins ...

journal_title：Nature

authors： Sandvig K,Garred O,Prydz K,Kozlov JV,Hansen SH,van Deurs B

更新日期：1992-08-06 00:00:00

abstract：:Acquired uniparental disomy (aUPD) is a common feature of cancer genomes, leading to loss of heterozygosity. aUPD is associated not only with loss-of-function mutations of tumour suppressor genes, but also with gain-of-function mutations of proto-oncogenes. Here we show unique gain-of-function mutations of the C-CBL (...

journal_title：Nature

authors： Sanada M,Suzuki T,Shih LY,Otsu M,Kato M,Yamazaki S,Tamura A,Honda H,Sakata-Yanagimoto M,Kumano K,Oda H,Yamagata T,Takita J,Gotoh N,Nakazaki K,Kawamata N,Onodera M,Nobuyoshi M,Hayashi Y,Harada H,Kurokawa M,Chiba

更新日期：2009-08-13 00:00:00

abstract：:The North Atlantic Oscillation (NAO) is the major source of variability in winter atmospheric circulation in the Northern Hemisphere, with large impacts on temperature, precipitation and storm tracks, and therefore also on strategic sectors such as insurance, renewable energy production, crop yields and water manageme...

journal_title：Nature

authors： Ortega P,Lehner F,Swingedouw D,Masson-Delmotte V,Raible CC,Casado M,Yiou P

更新日期：2015-07-02 00:00:00

abstract：:The purified p21src protein of Harvey sarcoma virus shows a guanine nucleotide-binding activity and, in addition, at elevated temperature an autophosphorylating activity at a threonine residue using as phosphoryl donor GTP or dGTP but not ATP or dATP. These biochemical activities are unique among those associated with...

journal_title：Nature

authors： Shih TY,Papageorge AG,Stokes PE,Weeks MO,Scolnick EM

更新日期：1980-10-23 00:00:00

abstract：:During the past ten years, coupled quantum wells have emerged as a promising system for experiments on Bose condensation of excitons, with numerous theoretical and experimental studies aimed at the demonstration of this effect. One of the issues driving these studies is the possibility of long-range coherent transport...

journal_title：Nature

authors： Snoke D,Denev S,Liu Y,Pfeiffer L,West K

更新日期：2002-08-15 00:00:00

abstract：:The mir-34/449 family consists of six homologous miRNAs at three genomic loci. Redundancy of miR-34/449 miRNAs and their dominant expression in multiciliated epithelia suggest a functional significance in ciliogenesis. Here we report that mice deficient for all miR-34/449 miRNAs exhibited postnatal mortality, infertil...

journal_title：Nature

authors： Song R,Walentek P,Sponer N,Klimke A,Lee JS,Dixon G,Harland R,Wan Y,Lishko P,Lize M,Kessel M,He L

更新日期：2014-06-05 00:00:00

abstract：:Calcium-dependent exocytosis of synaptic vesicles mediates the release of neurotransmitters. Important proteins in this process have been identified such as the SNAREs, synaptotagmins, complexins, Munc18 and Munc13. Structural and functional studies have yielded a wealth of information about the physiological role of ...

journal_title：Nature

authors： Jahn R,Fasshauer D

更新日期：2012-10-11 00:00:00

abstract：:One of the earliest computational principles attributed to the cerebellum was the measurement of time. This idea was originally suggested on anatomical grounds, and was taken up again to explain some of the deficits in cerebellar patients. The contribution of the cerebellum to eye movements, in contrast, has tradition...

journal_title：Nature

authors： Thier P,Dicke PW,Haas R,Barash S

更新日期：2000-05-04 00:00:00

abstract：:Spontaneous symmetry breaking plays a key role in our understanding of nature. In relativistic quantum field theory, a broken continuous symmetry leads to the emergence of two types of fundamental excitation: massless Nambu-Goldstone modes and a massive 'Higgs' amplitude mode. An excitation of Higgs type is of crucial...

journal_title：Nature

authors： Endres M,Fukuhara T,Pekker D,Cheneau M,Schauss P,Gross C,Demler E,Kuhr S,Bloch I

更新日期：2012-07-25 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