Structural basis for viral 5'-PPP-RNA recognition by human IFIT proteins.

abstract：:Pathfinding by growing axons in the developing nervous system may be guided by gradients of extracellular guidance factors. Analogous to the process of chemotaxis in microorganisms, we found that axonal growth cones of cultured Xenopus spinal neurons exhibit adaptation during chemotactic migration, undergoing consecut...

journal_title：Nature

authors： Ming GL,Wong ST,Henley J,Yuan XB,Song HJ,Spitzer NC,Poo MM

更新日期：2002-05-23 00:00:00

abstract：:We have shown previously that chromosome VI of Saccharomyces cerevisiae contains nine origins of DNA replication that differ in initiation frequency and replicate sequentially during the S phase of the cell cycle. Here we show that there are links between activation of these multiple origins and regulation of S-phase ...

journal_title：Nature

authors： Shirahige K,Hori Y,Shiraishi K,Yamashita M,Takahashi K,Obuse C,Tsurimoto T,Yoshikawa H

更新日期：1998-10-08 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：:L-glutamate, the neurotransmitter of the majority of excitatory synapses in the brain, acts on three classes of ionotropic receptors: NMDA (N-methyl-D-aspartate), AMPA (alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid) and kainate receptors. Little is known about the physiological role of kainate receptors be...

journal_title：Nature

authors： Mulle C,Sailer A,Pérez-Otaño I,Dickinson-Anson H,Castillo PE,Bureau I,Maron C,Gage FH,Mann JR,Bettler B,Heinemann SF

更新日期：1998-04-09 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：:An attempt is made to understand the characteristics of pulsar slowdown in terms of various possible emission mechanisms. Though magnetic-dipole radiation seems to be dominant, the deviations from a pure dipolar decay are large compared with errors in measurement and indicate the presence of more complicated braking m...

journal_title：Nature

authors： Papaliolios C,Carleton NP,Horowitz P

更新日期：1970-10-31 00:00:00

abstract：:A short, 14-amino-acid segment called SP1, located in the Gag structural protein1, has a critical role during the formation of the HIV-1 virus particle. During virus assembly, the SP1 peptide and seven preceding residues fold into a six-helix bundle, which holds together the Gag hexamer and facilitates the formation o...

journal_title：Nature

authors： Dick RA,Zadrozny KK,Xu C,Schur FKM,Lyddon TD,Ricana CL,Wagner JM,Perilla JR,Ganser-Pornillos BK,Johnson MC,Pornillos O,Vogt VM

更新日期：2018-08-01 00:00:00

abstract：:Microbiome-wide association studies have established that numerous diseases are associated with changes in the microbiota. These studies typically generate a long list of commensals implicated as biomarkers of disease, with no clear relevance to disease pathogenesis. If the field is to move beyond correlations and beg...

journal_title：Nature

authors： Surana NK,Kasper DL

更新日期：2017-12-14 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：:The kidney has been widely exploited as a model system for the study of tissue inductions regulating vertebrate organogenesis. Kidney development is initiated by the ingrowth of the Wolfian duct-derived ureteric bud into the presumptive kidney mesenchyme. In response to a signal from the ureter, mesenchymal cells cond...

journal_title：Nature

authors： Stark K,Vainio S,Vassileva G,McMahon AP

更新日期：1994-12-15 00:00:00

abstract：:The enzyme isopenicillin N synthetase (IPS) catalyses the oxidative condensation of delta-(L-alpha-aminoadipyl)-L-cysteinyl-D-valine (LLD-ACV) to isopenicillin N, which is a central reaction in the pathway to clinically important penicillins and cephalosporins. Here we report the cloning, characterization and expressi...

journal_title：Nature

authors： Samson SM,Belagaje R,Blankenship DT,Chapman JL,Perry D,Skatrud PL,VanFrank RM,Abraham EP,Baldwin JE,Queener SW

更新日期：1985-11-14 00:00:00

abstract：:Recent advances in stem-cell technology are now allowing the mechanisms of human disease to be studied in human cells. A new era for regenerative medicine is arising from such disease models, extending beyond early cell-based therapies and towards evaluating genetic variation in humans and identifying the molecular pa...

journal_title：Nature

authors： Chien KR

更新日期：2008-05-15 00:00:00

abstract：:Mammalian sex chromosomes share a small terminal region of homologous DNA sequences, which pair and recombine during male meiosis. Alleles in this region can be exchanged between X and Y chromosomes and are therefore inherited as if autosomal. Genes from this so-called pseudoautosomal region (PAR) are present in two d...

journal_title：Nature

authors： Gough NM,Gearing DP,Nicola NA,Baker E,Pritchard M,Callen DF,Sutherland GR

更新日期：1990-06-21 00:00:00

abstract：:Thrombosis--localized clotting of the blood--can occur in the arterial or the venous circulation and has a major medical impact. Acute arterial thrombosis is the proximal cause of most cases of myocardial infarction (heart attack) and of about 80% of strokes, collectively the most common cause of death in the develope...

journal_title：Nature

authors： Mackman N

更新日期：2008-02-21 00:00:00

abstract：:Patchwork homology observed between divergent members of polymorphic multigene families is thought to reflect evolution by short-tract gene conversion (nonreciprocal recombination), although this mechanism cannot usually be confirmed in higher organisms. In contrast to meiotic conversions observed in laboratory yeast ...

journal_title：Nature

authors： Wheeler CJ,Maloney D,Fogel S,Goodenow RS

更新日期：1990-09-13 00:00:00

abstract：:Haematopoietic stem cells (HSCs) have the ability to renew themselves and to give rise to all lineages of the blood; however, the signals that regulate HSC self-renewal remain unclear. Here we show that the Wnt signalling pathway has an important role in this process. Overexpression of activated beta-catenin expands t...

journal_title：Nature

authors： Reya T,Duncan AW,Ailles L,Domen J,Scherer DC,Willert K,Hintz L,Nusse R,Weissman IL

更新日期：2003-05-22 00:00:00

abstract：:Mutations or amplification of the MET proto-oncogene are involved in the pathogenesis of several tumours, which rely on the constitutive engagement of this pathway for their growth and survival. However, MET is expressed not only by cancer cells but also by tumour-associated stromal cells, although its precise role in...

journal_title：Nature

authors： Finisguerra V,Di Conza G,Di Matteo M,Serneels J,Costa S,Thompson AA,Wauters E,Walmsley S,Prenen H,Granot Z,Casazza A,Mazzone M

更新日期：2015-06-18 00:00:00

abstract：:CD4(+) T helper 2 (T(H)2) cells secrete interleukin (IL)4, IL5 and IL13, and are required for immunity to gastrointestinal helminth infections. However, T(H)2 cells also promote chronic inflammation associated with asthma and allergic disorders. The non-haematopoietic-cell-derived cytokines thymic stromal lymphopoieti...

journal_title：Nature

authors： Saenz SA,Siracusa MC,Perrigoue JG,Spencer SP,Urban JF Jr,Tocker JE,Budelsky AL,Kleinschek MA,Kastelein RA,Kambayashi T,Bhandoola A,Artis D

更新日期：2010-04-29 00:00:00

abstract：:The current picture of galaxy evolution advocates co-evolution of galaxies and their nuclear massive black holes, through accretion and galactic merging. Pairs of quasars, each with a massive black hole at the centre of its galaxy, have separations of 6,000 to 300,000 light years (refs 2 and 3; 1 parsec = 3.26 light y...

journal_title：Nature

authors： Fabbiano G,Wang J,Elvis M,Risaliti G

更新日期：2011-08-31 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：:Some surprising facts about the most productive institutions emerge when Japanese life-science research is subject to a novel type of assessment. ...

journal_title：Nature

authors： Yamazaki S

更新日期：1994-11-10 00:00:00

abstract：:Glandular epithelia, including the mammary and prostate glands, are composed of basal cells (BCs) and luminal cells (LCs)1,2. Many glandular epithelia develop from multipotent basal stem cells (BSCs) that are replaced in adult life by distinct pools of unipotent stem cells1,3-8. However, adult unipotent BSCs can react...

journal_title：Nature

authors： Centonze A,Lin S,Tika E,Sifrim A,Fioramonti M,Malfait M,Song Y,Wuidart A,Van Herck J,Dannau A,Bouvencourt G,Dubois C,Dedoncker N,Sahay A,de Maertelaer V,Siebel CW,Van Keymeulen A,Voet T,Blanpain C

更新日期：2020-08-01 00:00:00

abstract：:The dispersal of early humans from Africa by 1.75 Myr ago led to a marked expansion of their range, from the island of Flores in the east to the Iberian peninsula in the west. This range encompassed tropical forest, savannah and Mediterranean habitats, but has hitherto not been demonstrated beyond 45 degrees N. Until ...

journal_title：Nature

authors： Parfitt SA,Ashton NM,Lewis SG,Abel RL,Coope GR,Field MH,Gale R,Hoare PG,Larkin NR,Lewis MD,Karloukovski V,Maher BA,Peglar SM,Preece RC,Whittaker JE,Stringer CB

更新日期：2010-07-08 00:00:00

abstract：:In double-stranded-RNA (dsRNA) viruses found in animals, bacteria and yeast, the genome is transcribed within the structurally intact core of the virion with extraordinary efficiency. The structural organization of the genome and the enzymes involved in the transcription inside any of these viruses, critical for under...

journal_title：Nature

authors： Prasad BV,Rothnagel R,Zeng CQ,Jakana J,Lawton JA,Chiu W,Estes MK

更新日期：1996-08-01 00:00:00

abstract：:Numerous studies have suggested that biodiversity reduces variability in ecosystem productivity through compensatory effects; that is, a species increases in its abundance in response to the reduction of another in a fluctuating environment. But this view has been challenged on several grounds. Because most studies ha...

journal_title：Nature

authors： Bai Y,Han X,Wu J,Chen Z,Li L

更新日期：2004-09-09 00:00:00

abstract：:Developing an optical amplifier on silicon is essential for the success of silicon-on-insulator (SOI) photonic integrated circuits. Recently, optical gain with a 1-nm bandwidth was demonstrated using the Raman effect, which led to the demonstration of a Raman oscillator, lossless optical modulation and optically tunab...

journal_title：Nature

authors： Foster MA,Turner AC,Sharping JE,Schmidt BS,Lipson M,Gaeta AL

更新日期：2006-06-22 00:00:00

abstract：:In 2001 the Intergovernmental Panel on Climate Change projected the contribution to sea level rise from the Greenland ice sheet to be between -0.02 and +0.09 m from 1990 to 2100 (ref. 1). However, recent work has suggested that the ice sheet responds more quickly to climate perturbations than previously thought, parti...

journal_title：Nature

authors： Velicogna I,Wahr J

更新日期：2006-09-21 00:00:00

abstract：:Lipoxygenase metabolites of arachidonic acid have recently been shown to modulate the activity of ion channels in nerve and muscle cells. The mechanism of action of these metabolites is, however, unknown. In sensory neurons of Aplysia, the S-K- channel is under the dual modulatory control of 5-hydroxytryptamine (5-HT)...

journal_title：Nature

authors： Buttner N,Siegelbaum SA,Volterra A

更新日期：1989-11-30 00:00:00

abstract：:Microtubule-based ATPases of the kinesin superfamily provide the motile force for many animated features of living cells. Kinesin motors differ in their direction of movement along microtubules. Kinesin and ncd, a kinesin-related motor involved in formation and maintenance of mitotic and meiotic spindles, move in oppo...

journal_title：Nature

authors： Sablin EP,Kull FJ,Cooke R,Vale RD,Fletterick RJ

更新日期：1996-04-11 00:00:00

abstract：:Recent computational and psychological theories of human texture vision assert that texture discrimination is based on first-order differences in geometric and luminance attributes of texture elements, called 'textons'. Significant differences in the density, orientation, size, or contrast of line segments or other sm...

journal_title：Nature

authors： Voorhees H,Poggio T

更新日期：1988-05-26 00:00:00