Inhibition contributes to orientation selectivity in visual cortex of cat.

abstract：:DNA winds about itself in a right-handed or left-handed fashion at several structural levels. The double helix is generally right-handed and is given a (+) sign by convention, whereas supercoiling of the helix axis is always (-) in the cell. The winding in higher -order forms such as knots and catenanes is unknown, an...

journal_title：Nature

authors： Krasnow MA,Stasiak A,Spengler SJ,Dean F,Koller T,Cozzarelli NR

更新日期：1983-08-11 00:00:00

abstract：:Cancer cells acquire distinct metabolic adaptations to survive stress associated with tumour growth and to satisfy the anabolic demands of proliferation. The tumour suppressor protein p53 (also known as TP53) influences a range of cellular metabolic processes, including glycolysis, oxidative phosphorylation, glutamino...

journal_title：Nature

authors： Maddocks OD,Berkers CR,Mason SM,Zheng L,Blyth K,Gottlieb E,Vousden KH

更新日期：2013-01-24 00:00:00

abstract：:The fundus of the guinea-pig stomach actively dilates in response to low increases in intragastric pressure. This physiological response, now called adaptive relaxation, accommodates the intake of liquid or food. It is independent of external innervation, resistant to ganglion blockade, but reflex in origin. The nerve...

journal_title：Nature

authors： Desai KM,Sessa WC,Vane JR

更新日期：1991-06-06 00:00:00

abstract：:There is evidence to suggest that components of archaebacteria are evolutionarily related to cognates in the eukaryotic cytosol. We postulated that the major heat-shock protein of the thermophilic archaebacterium, Sulfolobus shibatae, is a molecular chaperone and that it is related to an as-yet unidentified chaperone ...

journal_title：Nature

authors： Trent JD,Nimmesgern E,Wall JS,Hartl FU,Horwich AL

更新日期：1991-12-12 00:00:00

abstract：:Nuclear exclusion of the PTEN (phosphatase and tensin homologue deleted in chromosome 10) tumour suppressor has been associated with cancer progression. However, the mechanisms leading to this aberrant PTEN localization in human cancers are currently unknown. We have previously reported that ubiquitinylation of PTEN a...

journal_title：Nature

authors： Song MS,Salmena L,Carracedo A,Egia A,Lo-Coco F,Teruya-Feldstein J,Pandolfi PP

更新日期：2008-10-09 00:00:00

abstract：: ...

journal_title：Nature

authors： Wight AJ

更新日期：2019-01-01 00:00:00

abstract：:Megakaryocytopoiesis is the cellular developmental process that leads to platelet production. At least two humoral growth factors may be necessary for megakaryocyte proliferation and maturation. One is a megakaryocyte-colony stimulating factor (MK-CSF) which induces the proliferation and differentiation of megakaryocy...

journal_title：Nature

authors： Wendling F,Maraskovsky E,Debili N,Florindo C,Teepe M,Titeux M,Methia N,Breton-Gorius J,Cosman D,Vainchenker W

更新日期：1994-06-16 00:00:00

abstract：:The growth of blood vessels (a process known as angiogenesis) is essential for organ growth and repair. An imbalance in this process contributes to numerous malignant, inflammatory, ischaemic, infectious and immune disorders. Recently, the first anti-angiogenic agents have been approved for the treatment of cancer and...

journal_title：Nature

authors： Carmeliet P

更新日期：2005-12-15 00:00:00

abstract：:Following the introduction of silicon-based integrated circuitry over three decades ago, the integration density of such circuits has doubled every 12 to 18 months: this observation is known as Moore's law. For this historical trend to continue, significant challenges need to be overcome in several key technological a...

journal_title：Nature

authors： Peercy PS

更新日期：2000-08-31 00:00:00

abstract：:The recognition and localization of sound signals is fundamental to acoustic communication. Complex neural mechanisms are thought to underlie the processing of species-specific sound patterns even in animals with simple auditory pathways. In female crickets, which orient towards the male's calling song, current models...

journal_title：Nature

authors： Hedwig B,Poulet JF

更新日期：2004-08-12 00:00:00

abstract：:The Kondo effect--a many-body phenomenon in condensed-matter physics involving the interaction between a localized spin and free electrons--was discovered in metals containing small amounts of magnetic impurities, although it is now recognized to be of fundamental importance in a wide class of correlated electron syst...

journal_title：Nature

authors： Sasaki S,De Franceschi S,Elzerman JM,van der Wiel WG,Eto M,Tarucha S,Kouwenhoven LP

更新日期：2000-06-15 00:00:00

abstract：:The sequencing of ancient DNA has enabled the reconstruction of speciation, migration and admixture events for extinct taxa1. However, the irreversible post-mortem degradation2 of ancient DNA has so far limited its recovery-outside permafrost areas-to specimens that are not older than approximately 0.5 million years (...

journal_title：Nature

authors： Cappellini E,Welker F,Pandolfi L,Ramos-Madrigal J,Samodova D,Rüther PL,Fotakis AK,Lyon D,Moreno-Mayar JV,Bukhsianidze M,Rakownikow Jersie-Christensen R,Mackie M,Ginolhac A,Ferring R,Tappen M,Palkopoulou E,Dickinson MR,S

更新日期：2019-10-01 00:00:00

abstract：:Combinatorial binding of transcription factors to regulatory DNA underpins gene regulation in all organisms. Genetic variation in regulatory regions has been connected with diseases and diverse phenotypic traits1, but it remains challenging to distinguish variants that affect regulatory function2. Genomic DNase I foot...

journal_title：Nature

authors： Vierstra J,Lazar J,Sandstrom R,Halow J,Lee K,Bates D,Diegel M,Dunn D,Neri F,Haugen E,Rynes E,Reynolds A,Nelson J,Johnson A,Frerker M,Buckley M,Kaul R,Meuleman W,Stamatoyannopoulos JA

更新日期：2020-07-01 00:00:00

abstract：:Among the ten subtypes of mammalian voltage-gated calcium (Cav) channels, Cav3.1-Cav3.3 constitute the T-type, or the low-voltage-activated, subfamily, the abnormal activities of which are associated with epilepsy, psychiatric disorders and pain1-5. Here we report the cryo-electron microscopy structures of human Cav3....

journal_title：Nature

authors： Zhao Y,Huang G,Wu Q,Wu K,Li R,Lei J,Pan X,Yan N

更新日期：2019-12-01 00:00:00

abstract：:Contamination of ground waters with water-soluble aromatic hydrocarbons, common components of petroleum pollution, often produces anoxic conditions under which microbial degradation of the aromatics is slow. Oxygen is often added to contaminated ground water to stimulate biodegradation, but this can be technically dif...

journal_title：Nature

authors： Lovley DR,Woodward JC,Chapelle FH

更新日期：1994-07-14 00:00:00

abstract：:Organisms use endogenous clocks to anticipate regular environmental cycles, such as days and tides. Natural variants resulting in differently timed behaviour or physiology, known as chronotypes in humans, have not been well characterized at the molecular level. We sequenced the genome of Clunio marinus, a marine midge...

journal_title：Nature

authors： Kaiser TS,Poehn B,Szkiba D,Preussner M,Sedlazeck FJ,Zrim A,Neumann T,Nguyen LT,Betancourt AJ,Hummel T,Vogel H,Dorner S,Heyd F,von Haeseler A,Tessmar-Raible K

更新日期：2016-12-01 00:00:00

abstract：:Dehydration embrittlement has been proposed to explain both intermediate- and deep-focus earthquakes in subduction zones. Because such earthquakes primarily occur at shallow depths or within the core of the subducting plate, dehydration at relatively low temperatures has been emphasized. However, recent careful reloca...

journal_title：Nature

authors： Zhang J,Green HW,Bozhilov K,Jin Z

更新日期：2004-04-08 00:00:00

abstract：:GTPase-activating proteins (GAPs) increase the rate of GTP hydrolysis on guanine nucleotide-binding proteins by many orders of magnitude. Studies with Ras and Rho have elucidated the mechanism of GAP action by showing that their catalytic machinery is both stabilized by GAP binding and complemented by the insertion of...

journal_title：Nature

authors： Seewald MJ,Körner C,Wittinghofer A,Vetter IR

更新日期：2002-02-07 00:00:00

abstract：:Seasonal influenza epidemics are a major public health concern, causing tens of millions of respiratory illnesses and 250,000 to 500,000 deaths worldwide each year. In addition to seasonal influenza, a new strain of influenza virus against which no previous immunity exists and that demonstrates human-to-human transmis...

journal_title：Nature

authors： Ginsberg J,Mohebbi MH,Patel RS,Brammer L,Smolinski MS,Brilliant L

更新日期：2009-02-19 00:00:00

abstract：: ...

journal_title：Nature

authors：

更新日期：2018-11-01 00:00:00

abstract：:Visual working memory provides an essential link between perception and higher cognitive functions, allowing for the active maintenance of information about stimuli no longer in view. Research suggests that sustained activity in higher-order prefrontal, parietal, inferotemporal and lateral occipital areas supports vis...

journal_title：Nature

authors： Harrison SA,Tong F

更新日期：2009-04-02 00:00:00

abstract：:Muscle force is generated by myosin crossbridges interacting with actin. As estimated from stiffness and equatorial X-ray diffraction of muscle and muscle fibres, most myosin crossbridges are attached to actin during isometric contraction, but a much smaller fraction is bound stereospecifically. To determine the fract...

journal_title：Nature

authors： Bershitsky SY,Tsaturyan AK,Bershitskaya ON,Mashanov GI,Brown P,Burns R,Ferenczi MA

更新日期：1997-07-10 00:00:00

abstract：:Contraction of cardiac muscle depends on a transient rise of intracellular calcium concentration ([Ca2+]i) which is initiated by the action potential. It has, however, also been suggested that [Ca2+]i can fluctuate in the absence of changes in membrane potential. The evidence for this is indirect and comes from observ...

journal_title：Nature

authors： Orchard CH,Eisner DA,Allen DG

更新日期：1983-08-25 00:00:00

abstract：:The tumour necrosis factor (TNF) ligand TALL-1 and its cognate receptors, BCMA, TACI and BAFF-R, were recently identified as members of the TNF superfamily, which are essential factors contributing to B-cell maturation. The functional, soluble fragment of TALL-1 (sTALL-1) forms a virus-like assembly for its proper fun...

journal_title：Nature

authors： Liu Y,Hong X,Kappler J,Jiang L,Zhang R,Xu L,Pan CH,Martin WE,Murphy RC,Shu HB,Dai S,Zhang G

更新日期：2003-05-01 00:00:00

abstract：:Interactions of CD4 with the class II major histocompatibility complex (MHC) are crucial during thymic ontogeny and subsequently for helper and cytotoxic functions of CD4+CD8- T lymphocytes. CD4 is the receptor for the T-lymphotropic human immunodeficiency virus and binds its envelope glycoprotein, gp120. The residues...

journal_title：Nature

authors： Clayton LK,Sieh M,Pious DA,Reinherz EL

更新日期：1989-06-15 00:00:00

abstract：:The proteins encoded by the ras oncogene are thought to trigger expression of the transformed phenotype in some types of cancer cells. In human cells, the ras protein family consists of several members including normal (proto-oncogene) and mutant (oncogene) forms. In general, the proto-oncogene forms are thought to be...

journal_title：Nature

authors： Feramisco JR,Clark R,Wong G,Arnheim N,Milley R,McCormick F

更新日期：1985-04-18 00:00:00

abstract：:The dehydration of subducting oceanic crust and upper mantle has been inferred both to promote the partial melting leading to arc magmatism and to induce intraslab intermediate-depth earthquakes, at depths of 50-300 km. Yet there is still no consensus about how slab hydration occurs or where and how much chemically bo...

journal_title：Nature

authors： Ranero CR,Morgan JP,McIntosh K,Reichert C

更新日期：2003-09-25 00:00:00

abstract：:The neural substrates that the fruitfly Drosophila uses to sense smell, taste and light share marked structural and functional similarities with ours, providing attractive models to dissect sensory stimulus processing. Here we focus on two of the remaining and less understood prime sensory modalities: graviception and...

journal_title：Nature

authors： Kamikouchi A,Inagaki HK,Effertz T,Hendrich O,Fiala A,Göpfert MC,Ito K

更新日期：2009-03-12 00:00:00

abstract：:Classical endocrine studies have shown that steroid hormones are required for the maintenance of pregnancy and placental viability. The oestrogen-receptor-related receptor beta (ERR-beta) is an orphan member of the superfamily of nuclear hormone receptors. Although ERR-beta is homologous to the oestrogen receptor and ...

journal_title：Nature

authors： Luo J,Sladek R,Bader JA,Matthyssen A,Rossant J,Giguère V

更新日期：1997-08-21 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