The reaction mechanism of the internal thioester in the human complement component C4.

abstract：:The application of human embryonic stem (ES) cells in medicine and biology has an inherent reliance on understanding the starting cell population. Human ES cells differ from mouse ES cells and the specific embryonic origin of both cell types is unclear. Previous work suggested that mouse ES cells could only be obtaine...

journal_title：Nature

authors： Tesar PJ,Chenoweth JG,Brook FA,Davies TJ,Evans EP,Mack DL,Gardner RL,McKay RD

更新日期：2007-07-12 00:00:00

abstract：:Tumour necrosis factor (TNF) elicits multiple biological effects through two distinct cell surface receptors, TNF-R1 (p55) and TNF-R2 (p75). Most TNF-mediated biological responses, such as cell death, gene induction, antiviral activity and cytokine production, have been attributed to TNF-R1 (refs 1-5). Gene targeting ...

journal_title：Nature

authors： Erickson SL,de Sauvage FJ,Kikly K,Carver-Moore K,Pitts-Meek S,Gillett N,Sheehan KC,Schreiber RD,Goeddel DV,Moore MW

更新日期：1994-12-08 00:00:00

abstract：:Accurate measurement of the lifetime of the neutron (which is unstable to beta decay) is important for understanding the weak nuclear force and the creation of matter during the Big Bang. Previous measurements of the neutron lifetime have mainly been limited by certain systematic errors; however, these could in princi...

journal_title：Nature

authors： Huffman PR,Brome CR,Butterworth JS,Coakley KJ,Dewey MS,Dzhosyuk SN,Golub R,Greene GL,Habicht K,Lamoreaux SK,Mattoni CE,McKinsey DN,Wietfeldt FE,Doyle JM

更新日期：2000-01-06 00:00:00

abstract：:Glutamate transporters are integral membrane proteins that catalyse neurotransmitter uptake from the synaptic cleft into the cytoplasm of glial cells and neurons. Their mechanism of action involves transitions between extracellular (outward)-facing and intracellular (inward)-facing conformations, whereby substrate bin...

journal_title：Nature

authors： Akyuz N,Altman RB,Blanchard SC,Boudker O

更新日期：2013-10-03 00:00:00

abstract：:DNA-binding repressor proteins mediate regulation of yeast genes by cell type (Mcm1/alpha 2 and a1/alpha 2), glucose (Mig1) and oxygen (Rox1) (refs 1-4 respectively). An unusual feature of all these regulatory pathways is that transcriptional repression requires two physically associated proteins that do not bind DNA ...

journal_title：Nature

authors： Tzamarias D,Struhl K

更新日期：1994-06-30 00:00:00

abstract：:Alzheimer's disease (AD) is characterized by deposition of amyloid-β (Aβ) plaques and neurofibrillary tangles in the brain, accompanied by synaptic dysfunction and neurodegeneration. Antibody-based immunotherapy against Aβ to trigger its clearance or mitigate its neurotoxicity has so far been unsuccessful. Here we rep...

journal_title：Nature

authors： Sevigny J,Chiao P,Bussière T,Weinreb PH,Williams L,Maier M,Dunstan R,Salloway S,Chen T,Ling Y,O'Gorman J,Qian F,Arastu M,Li M,Chollate S,Brennan MS,Quintero-Monzon O,Scannevin RH,Arnold HM,Engber T,Rhodes K,Ferr

更新日期：2016-09-01 00:00:00

abstract：:Co-evolution between plants and their natural enemies is generally believed to have generated much of the Earth's biological diversity. A process analogous to co-evolution occurs in agricultural systems, in which natural enemies adapt to crop resistance introduced by breeding or genetic engineering. Because of this si...

journal_title：Nature

authors： Rausher MD

更新日期：2001-06-14 00:00:00

abstract：:The theoretical maximum tensile strain--that is, elongation--of a single-walled carbon nanotube is almost 20%, but in practice only 6% is achieved. Here we show that, at high temperatures, individual single-walled carbon nanotubes can undergo superplastic deformation, becoming nearly 280% longer and 15 times narrower ...

journal_title：Nature

authors： Huang JY,Chen S,Wang ZQ,Kempa K,Wang YM,Jo SH,Chen G,Dresselhaus MS,Ren ZF

更新日期：2006-01-19 00:00:00

abstract：:Bacterial toxins represent a vast reservoir of biochemical diversity that can be repurposed for biomedical applications. Such proteins include a group of predicted interbacterial toxins of the deaminase superfamily, members of which have found application in gene-editing techniques1,2. Because previously described cyt...

journal_title：Nature

authors： Mok BY,de Moraes MH,Zeng J,Bosch DE,Kotrys AV,Raguram A,Hsu F,Radey MC,Peterson SB,Mootha VK,Mougous JD,Liu DR

更新日期：2020-07-01 00:00:00

abstract：:Transition-metal perovskite oxides exhibit a wide range of extraordinary but imperfectly understood phenomena. The best known examples are high-temperature superconductivity in copper oxides, and colossal magnetoresistance in manganese oxides ('manganites'). All of these materials undergo a range of order-disorder tra...

journal_title：Nature

authors： Renner Ch,Aeppli G,Kim BG,Soh YA,Cheong SW

更新日期：2002-04-04 00:00:00

abstract：:Interleukin (IL)-17-producing T helper cells (T(H)17) are a recently identified CD4(+) T cell subset distinct from T helper type 1 (T(H)1) and T helper type 2 (T(H)2) cells. T(H)17 cells can drive antigen-specific autoimmune diseases and are considered the main population of pathogenic T cells driving experimental aut...

journal_title：Nature

authors： Esplugues E,Huber S,Gagliani N,Hauser AE,Town T,Wan YY,O'Connor W Jr,Rongvaux A,Van Rooijen N,Haberman AM,Iwakura Y,Kuchroo VK,Kolls JK,Bluestone JA,Herold KC,Flavell RA

更新日期：2011-07-17 00:00:00

abstract：:The first zygotic genes to be expressed during early Drosophila development are the gap genes. Their role is to read and interpret coarse positional information deposited in the egg by the mother and to refine it by cross-regulatory interactions and by controlling a class of pair-rule genes. Little is known about the ...

journal_title：Nature

authors： Treisman J,Desplan C

更新日期：1989-09-28 00:00:00

abstract：:A variety of observations indicate that mid-ocean ridges produce less crust at spreading rates below 20 mm yr(-1) (refs 1-3), reflecting changes in fundamental ridge processes with decreasing spreading rate. The nature of these changes, however, remains uncertain, with end-member explanations being decreasing shallow ...

journal_title：Nature

authors： Lizarralde D,Gaherty JB,Collins JA,Hirth G,Kim SD

更新日期：2004-12-09 00:00:00

abstract：:The University of California at Berkeley has announced the postponement of a planned experiment involving the field testing of bacteria genetically engineered to reduce frost damage to crops. The action came after Jeremy Rifkin, who had earlier filed suit against the National Institutes of Health after its Recombinan...

journal_title：Nature

authors： Budiansky S

更新日期：1983-10-13 00:00:00

abstract：:The enzyme Cu, Zn superoxide dismutase (SOD) protects against oxidative damage by dismuting the superoxide radical O2-. to molecular oxygen and hydrogen peroxide at the active-site Cu ion in a reaction that is rate-limited by diffusion and enhanced by electrostatic guidance. SOD has evolved to be one of the fastest en...

journal_title：Nature

authors： Getzoff ED,Cabelli DE,Fisher CL,Parge HE,Viezzoli MS,Banci L,Hallewell RA

更新日期：1992-07-23 00:00:00

abstract：:Recent advances in understanding the molecular basis of human X-linked muscular dystrophies have come from the identification of dystrophin, a cytoskeletal protein associated with the surface membrane. Although there is little or virtually no dystrophin in affected individuals, it is not known how this causes muscle d...

journal_title：Nature

authors： Franco A Jr,Lansman JB

更新日期：1990-04-12 00:00:00

abstract：:Recently, several groups have initiated studies on cytosolic proteins that bind to isolated secretory vesicle membranes in the presence of Ca2+ in order to identify proteins that may regulate exocytosis. Two major chromaffin granule binding proteins, of molecular weights 32,000 (32K) and 34,000 (34K), were reported to...

journal_title：Nature

authors： Creutz CE,Harrison JR

更新日期：1984-03-08 00:00:00

abstract：:Intracellular Ca2+ signalling processes are fundamental to muscle contraction, neurotransmitter release, cell growth and apoptosis. Release of Ca2+ from the intracellular stores is supported by a series of ion channels in sarcoplasmic or endoplasmic reticulum (SR/ER). Among them, two isoforms of the trimeric intracell...

journal_title：Nature

authors： Yang H,Hu M,Guo J,Ou X,Cai T,Liu Z

更新日期：2016-10-27 00:00:00

abstract：:A membrane receptor protein for asialoglycoproteins induces voltage-dependent increases in ion conductance across a lipid bilayer, probably reflecting penetration of the protein into the bilayer towards an electrically positive pole. In the presence of specific ligand for the receptor, this penetration leads to a 'tra...

journal_title：Nature

authors： Blumenthal R,Klausner RD,Weinstein JN

更新日期：1980-11-27 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：:The success of cisplatin in cancer chemotherapy derives from its ability to crosslink DNA and alter the structure. Most cisplatin-DNA adducts are intrastrand d(GpG) and d(ApG) crosslinks, which unwind and bend the duplex to facilitate the binding of proteins that contain one or more high-mobility group (HMG) domains. ...

journal_title：Nature

authors： Takahara PM,Rosenzweig AC,Frederick CA,Lippard SJ

更新日期：1995-10-19 00:00:00

abstract：:Since its discovery in 1989, efforts to grow clinical isolates of the hepatitis C virus (HCV) in cell culture have met with limited success. Only the JFH-1 isolate has the capacity to replicate efficiently in cultured hepatoma cells without cell culture-adaptive mutations. We hypothesized that cultured cells lack one ...

journal_title：Nature

authors： Saeed M,Andreo U,Chung HY,Espiritu C,Branch AD,Silva JM,Rice CM

更新日期：2015-08-27 00:00:00

abstract：:Three-wave mixing in nonlinear materials--the interaction of two light waves to produce a third--is a convenient way of generating new optical frequencies from common laser sources. However, the resulting optical conversion yield is generally poor, because the relative phases of the three interacting waves change cont...

journal_title：Nature

authors： Baudrier-Raybaut M,Haïdar R,Kupecek P,Lemasson P,Rosencher E

更新日期：2004-11-18 00:00:00

abstract：:Mutational activation of BRAF is the most prevalent genetic alteration in human melanoma, with ≥50% of tumours expressing the BRAF(V600E) oncoprotein. Moreover, the marked tumour regression and improved survival of late-stage BRAF-mutated melanoma patients in response to treatment with vemurafenib demonstrates the ess...

journal_title：Nature

authors： Das Thakur M,Salangsang F,Landman AS,Sellers WR,Pryer NK,Levesque MP,Dummer R,McMahon M,Stuart DD

更新日期：2013-02-14 00:00:00

abstract：:Ferroptosis-an iron-dependent, non-apoptotic cell death process-is involved in various degenerative diseases and represents a targetable susceptibility in certain cancers1. The ferroptosis-susceptible cell state can either pre-exist in cells that arise from certain lineages or be acquired during cell-state transitions...

journal_title：Nature

authors： Zou Y,Henry WS,Ricq EL,Graham ET,Phadnis VV,Maretich P,Paradkar S,Boehnke N,Deik AA,Reinhardt F,Eaton JK,Ferguson B,Wang W,Fairman J,Keys HR,Dančík V,Clish CB,Clemons PA,Hammond PT,Boyer LA,Weinberg RA,Schreiber

更新日期：2020-09-01 00:00:00

abstract：:During the biosynthesis of selenoproteins in both prokaryotes and eukaryotes, selenocysteine is cotranslationally incorporated into the nascent polypeptide chain through a process directed by a UGA codon that normally functions as a stop codon. Recently, four genes have been identified whose products are required for ...

journal_title：Nature

authors： Forchhammer K,Leinfelder W,Böck A

更新日期：1989-11-23 00:00:00

abstract：:An Amendment to this paper has been published and can be accessed via a link at the top of the paper. ...

journal_title：Nature

authors： Schwörer S,Becker F,Feller C,Baig AH,Köber U,Henze H,Kraus JM,Xin B,Lechel A,Lipka DB,Varghese CS,Schmidt M,Rohs R,Aebersold R,Medina KL,Kestler HA,Neri F,von Maltzahn J,Tümpel S,Rudolph KL

更新日期：2019-08-01 00:00:00

abstract：:Homeostasis is a biological principle for regulation of essential physiological parameters within a set range. Behavioural responses due to deviation from homeostasis are critical for survival, but motivational processes engaged by physiological need states are incompletely understood. We examined motivational charact...

journal_title：Nature

authors： Betley JN,Xu S,Cao ZFH,Gong R,Magnus CJ,Yu Y,Sternson SM

更新日期：2015-05-14 00:00:00

abstract：:Growing concern about how loss of biodiversity will affect ecosystems has stimulated numerous studies. Although most studies have assumed that species go extinct randomly, species often go extinct in order of their sensitivity to a stress that intensifies through time (such as climate change). Here we show that the co...

journal_title：Nature

authors： Ives AR,Cardinale BJ

更新日期：2004-05-13 00:00:00

abstract：:Vertebrate erythroid cells contain a tissue-specific transcription factor referred to as Eryf 1 (ref. 1), GF-1 (ref. 2) or NF-E1 (ref. 3), for which binding sites are widely distributed in the promoters and enhancers of the globin gene family, and of other erythroid-specific genes. Aberrant binding of the human factor...

journal_title：Nature

authors： Trainor CD,Evans T,Felsenfeld G,Boguski MS

更新日期：1990-01-04 00:00:00