Renal abnormalities and an altered inflammatory response in mice lacking cyclooxygenase II.

abstract：:Infection by the human immunodeficiency virus (HIV) is initiated by the binding of its extracellular envelope glycoprotein, gp120, to the CD4 antigen on target cells. To map the residues of the HIV-1 glycoprotein that are critical for binding and to analyse the effects of binding on viral infectivity, we created 15 mu...

journal_title：Nature

authors： Cordonnier A,Montagnier L,Emerman M

更新日期：1989-08-17 00:00:00

abstract：:The mammary gland is composed of multiple types of epithelial cells, which are generated by mammary stem cells (MaSCs) residing at the top of the hierarchy. However, the existence of these multipotent MaSCs remains controversial and the nature of such cells is unknown. Here we demonstrate that protein C receptor (Proc...

journal_title：Nature

authors： Wang D,Cai C,Dong X,Yu QC,Zhang XO,Yang L,Zeng YA

更新日期：2015-01-01 00:00:00

abstract：:Long-term synaptic potentiation (LTP) is thought to be a key process in cortical synaptic network plasticity and memory formation. Hebbian forms of LTP depend on strong postsynaptic depolarization, which in many models is generated by action potentials that propagate back from the soma into dendrites. However, local d...

journal_title：Nature

authors： Gambino F,Pagès S,Kehayas V,Baptista D,Tatti R,Carleton A,Holtmaat A

更新日期：2014-11-06 00:00:00

abstract：:Certain cell fate decisions are specified by cell-cell interactions during the development of the nematode Caenorhabditis elegans. For example, in a wild-type hermaphrodite gonad, two cells, Z1.ppp and Z4.aaa, have the potential to become the anchor cell (AC). Intercellular communication establishes their fates and en...

journal_title：Nature

authors： Greenwald I,Seydoux G

更新日期：1990-07-12 00:00:00

abstract：:Evidence of myc gene transduction by feline leukaemia virus in several spontaneous lymphoid tumours of cats suggests that recombinant viruses carrying oncogenes may be much more involved in oncogenesis in natural conditions than previously recognized. ...

journal_title：Nature

authors： Neil JC,Hughes D,McFarlane R,Wilkie NM,Onions DE,Lees G,Jarrett O

更新日期：1984-04-26 00:00:00

abstract：:Most of the progress in human culture has required the exploitation of energy resources. About 100 years ago, the major source of energy shifted from recent solar to fossil hydrocarbons, including liquid and gaseous petroleum. Technology has generally led to a greater use of hydrocarbon fuels for most human activities...

journal_title：Nature

authors： Hall C,Tharakan P,Hallock J,Cleveland C,Jefferson M

更新日期：2003-11-20 00:00:00

abstract：:Muscarinic receptors of cardiac pacemaker and atrial cells are linked to a potassium channel (IK.ACh) by a pertussis toxin-sensitive GTP-binding protein. The dissociation of G-proteins leads to the generation of two potential transducing elements, alpha-GTP and beta gamma. IK.ACh is activated by G-protein alpha- and b...

journal_title：Nature

authors： Kim D,Lewis DL,Graziadei L,Neer EJ,Bar-Sagi D,Clapham DE

更新日期：1989-02-09 00:00:00

abstract：:Formation of catalytically active RNA structures within the spliceosome requires the assistance of proteins. However, little is known about the number and nature of proteins needed to establish and maintain the spliceosome's active site. Here we affinity-purified human spliceosomal C complexes and show that they catal...

journal_title：Nature

authors： Bessonov S,Anokhina M,Will CL,Urlaub H,Lührmann R

更新日期：2008-04-17 00:00:00

abstract：:The separation of ON and OFF channels and the development of an antagonistic surround occur at the first synapse in the vertebrate retina. This functional differentiation is mediated by the action of the photoreceptor neurotransmitter on the ON bipolar, OFF bipolar and horizontal cells, respectively. Glutamate mimics ...

journal_title：Nature

authors： Slaughter MM,Miller RF

更新日期：1985-03-07 00:00:00

abstract：:The conventional treatment of dental caries involves mechanical removal of the affected part and filling of the hole with a resin or metal alloy. But this method is not ideal for tiny early lesions because a disproportionate amount of healthy tooth must be removed to make the alloy or resin stick. Here we describe a d...

journal_title：Nature

authors： Yamagishi K,Onuma K,Suzuki T,Okada F,Tagami J,Otsuki M,Senawangse P

更新日期：2005-02-24 00:00:00

abstract：:For more than four decades, transistors have been shrinking exponentially in size, and therefore the number of transistors in a single microelectronic chip has been increasing exponentially. Such an increase in packing density was made possible by continually shrinking the metal-oxide-semiconductor field-effect transi...

journal_title：Nature

authors： Ferain I,Colinge CA,Colinge JP

更新日期：2011-11-16 00:00:00

abstract：:Chondrules and Ca-Al-rich inclusions (CAIs) are high-temperature components of meteorites that formed during transient heating events in the early Solar System. A major unresolved issue is the relative timing of CAI and chondrule formation. From the presence of chondrule fragments in an igneous CAI, it was concluded t...

journal_title：Nature

authors： Krot AN,Yurimoto H,Hutcheon ID,MacPherson GJ

更新日期：2005-04-21 00:00:00

abstract：:'Identifier' or ID sequences are present in 62% of the RNA polymerase II and III transcripts made in vitro from brain nuclei but in fewer than 4% of the transcripts made from the nuclei of other tissues. An homologous 160-nucleotide cytoplasmic poly(A)+ RNA species, BC1, and a smaller species, BC2, are located in vivo...

journal_title：Nature

authors： Sutcliffe JG,Milner RJ,Gottesfeld JM,Lerner RA

更新日期：1984-03-15 00:00:00

abstract：:Rho is the essential RNA helicase that sets the borders between transcription units and adjusts transcriptional yield to translational needs in bacteria. Although Rho was the first termination factor to be discovered, the actual mechanism by which it reaches and disrupts the elongation complex (EC) is unknown. Here we...

journal_title：Nature

authors： Epshtein V,Dutta D,Wade J,Nudler E

更新日期：2010-01-14 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

abstract：:The generation of a local chromatin topology conducive to transcription is a key step in gene regulation. The yeast SWI/SNF complex is the founding member of a family of ATP-dependent remodelling activities capable of altering chromatin structure both in vitro and in vivo. Despite its importance, the pathway by which ...

journal_title：Nature

authors： Whitehouse I,Flaus A,Cairns BR,White MF,Workman JL,Owen-Hughes T

更新日期：1999-08-19 00:00:00

abstract：:DNA double-strand breaks are generated by genotoxic agents and by cellular endonucleases as intermediates of several important physiological processes. The cellular response to genotoxic DNA breaks includes the activation of transcriptional programs known primarily to regulate cell-cycle checkpoints and cell survival....

journal_title：Nature

authors： Bredemeyer AL,Helmink BA,Innes CL,Calderon B,McGinnis LM,Mahowald GK,Gapud EJ,Walker LM,Collins JB,Weaver BK,Mandik-Nayak L,Schreiber RD,Allen PM,May MJ,Paules RS,Bassing CH,Sleckman BP

更新日期：2008-12-11 00:00:00

abstract：:Modification of tyrosine residues of proteins has attracted great interest. Although phosphorylation has received most attention, tyrosine-O-sulphation is also common and has been closely investigated in the hormones gastrin and cholecystokinin (CCK). CCK regulates pancreatic enzyme secretion. It is always sulphated a...

journal_title：Nature

authors： Brand SJ,Andersen BN,Rehfeld JF

更新日期：1984-05-31 00:00:00

abstract：:There is considerable interest in the existence and significance of alternative conformations of DNA to the right-handed B-form described originally by Watson and Crick. The indirect immunofluorescence observations of Nordheim et al., Arndt-Jovin et al. and Lemeunier et al. that antibodies against left-handed Z-DNA bi...

journal_title：Nature

authors： Hill RJ,Stollar BD

更新日期：1983-09-22 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：:The evolutionary divergence of a single species into two has never been directly observed in nature, primarily because speciation can take a long time to occur. A ring species, in which a chain of intergrading populations encircles a barrier and the terminal forms coexist without interbreeding, provides a situation in...

journal_title：Nature

authors： Irwin DE,Bensch S,Price TD

更新日期：2001-01-18 00:00:00

abstract：:Plasmacytoid dendritic cells (pDCs) sense viral and microbial DNA through endosomal Toll-like receptors to produce type 1 interferons. pDCs do not normally respond to self-DNA, but this restriction seems to break down in human autoimmune disease by an as yet poorly understood mechanism. Here we identify the antimicrob...

journal_title：Nature

authors： Lande R,Gregorio J,Facchinetti V,Chatterjee B,Wang YH,Homey B,Cao W,Wang YH,Su B,Nestle FO,Zal T,Mellman I,Schröder JM,Liu YJ,Gilliet M

更新日期：2007-10-04 00:00:00

abstract：:The nature of ultrahigh-energy cosmic rays (UHECRs) at energies >10(20) eV remains a mystery. They are likely to be of extragalactic origin, but should be absorbed within approximately 50 Mpc through interactions with the cosmic microwave background. As there are no sufficiently powerful accelerators within this dista...

journal_title：Nature

authors： Falcke H,Apel WD,Badea AF,Bähren L,Bekk K,Bercuci A,Bertaina M,Biermann PL,Blümer J,Bozdog H,Brancus IM,Buitink S,Brüggemann M,Buchholz P,Butcher H,Chiavassa A,Daumiller K,de Bruyn AG,de Vos CM,Di Pierro F,Doll P

更新日期：2005-05-19 00:00:00

abstract：:Spin dynamics in antiferromagnets has much shorter timescales than in ferromagnets, offering attractive properties for potential applications in ultrafast devices1-3. However, spin-current generation via antiferromagnetic resonance and simultaneous electrical detection by the inverse spin Hall effect in heavy metals h...

journal_title：Nature

authors： Li J,Wilson CB,Cheng R,Lohmann M,Kavand M,Yuan W,Aldosary M,Agladze N,Wei P,Sherwin MS,Shi J

更新日期：2020-02-01 00:00:00

abstract：:The endoplasmic reticulum (ER) is the largest intracellular endomembrane system, enabling protein and lipid synthesis, ion homeostasis, quality control of newly synthesized proteins and organelle communication. Constant ER turnover and modulation is needed to meet different cellular requirements and autophagy has an i...

journal_title：Nature

authors： Khaminets A,Heinrich T,Mari M,Grumati P,Huebner AK,Akutsu M,Liebmann L,Stolz A,Nietzsche S,Koch N,Mauthe M,Katona I,Qualmann B,Weis J,Reggiori F,Kurth I,Hübner CA,Dikic I

更新日期：2015-06-18 00:00:00

abstract：: ...

journal_title：Nature

authors： Woolston C

更新日期：2019-01-01 00:00:00

abstract：:Since the first aeroplane flight more than 100 years ago, aeroplanes have been propelled using moving surfaces such as propellers and turbines. Most have been powered by fossil-fuel combustion. Electroaerodynamics, in which electrical forces accelerate ions in a fluid1,2, has been proposed as an alternative method of ...

journal_title：Nature

authors： Xu H,He Y,Strobel KL,Gilmore CK,Kelley SP,Hennick CC,Sebastian T,Woolston MR,Perreault DJ,Barrett SRH

更新日期：2018-11-01 00:00:00

abstract：:Sea ice and dust flux increased greatly in the Southern Ocean during the last glacial period. Palaeorecords provide contradictory evidence about marine productivity in this region, but beyond one glacial cycle, data were sparse. Here we present continuous chemical proxy data spanning the last eight glacial cycles (740...

journal_title：Nature

authors： Wolff EW,Fischer H,Fundel F,Ruth U,Twarloh B,Littot GC,Mulvaney R,Röthlisberger R,de Angelis M,Boutron CF,Hansson M,Jonsell U,Hutterli MA,Lambert F,Kaufmann P,Stauffer B,Stocker TF,Steffensen JP,Bigler M,Siggaard-An

更新日期：2006-03-23 00:00:00

abstract：:G-protein-coupled receptors comprise the largest family of mammalian transmembrane receptors. They mediate numerous cellular pathways by coupling with downstream signalling transducers, including the hetrotrimeric G proteins Gs (stimulatory) and Gi (inhibitory) and several arrestin proteins. The structural mechanisms ...

journal_title：Nature

authors： Kang Y,Kuybeda O,de Waal PW,Mukherjee S,Van Eps N,Dutka P,Zhou XE,Bartesaghi A,Erramilli S,Morizumi T,Gu X,Yin Y,Liu P,Jiang Y,Meng X,Zhao G,Melcher K,Ernst OP,Kossiakoff AA,Subramaniam S,Xu HE

更新日期：2018-06-01 00:00:00

abstract：:The tropical forests of Borneo and Amazonia may each contain more tree species diversity in half a square kilometre than do all the temperate forests of Europe, North America, and Asia combined. Biologists have long been fascinated by this disparity, using it to investigate potential drivers of biodiversity. Latitudin...

journal_title：Nature

authors： Usinowicz J,Chang-Yang CH,Chen YY,Clark JS,Fletcher C,Garwood NC,Hao Z,Johnstone J,Lin Y,Metz MR,Masaki T,Nakashizuka T,Sun IF,Valencia R,Wang Y,Zimmerman JK,Ives AR,Wright SJ

更新日期：2017-10-05 00:00:00