Antibodies against metal chelates.

abstract：:Population-level analyses often use average quantities to describe heterogeneous systems, particularly when variation does not arise from identifiable groups. A prominent example, central to our current understanding of epidemic spread, is the basic reproductive number, R(0), which is defined as the mean number of inf...

journal_title：Nature

authors： Lloyd-Smith JO,Schreiber SJ,Kopp PE,Getz WM

更新日期：2005-11-17 00:00:00

abstract：:It is generally accepted that the oscillatory beating characteristic of sperm flagella is the result of an ATP-induced sliding between the doublet microtubules of the flagellar axoneme, with these longitudinal forces being converted into a lateral bending moment by resistive components of the structure that limit the ...

journal_title：Nature

authors： Gibbons IR,Shingyoji C,Murakami A,Takahashi K

更新日期：1987-01-22 00:00:00

abstract：:Concentrating urine is mandatory for most mammals to prevent water loss from the body. Concentrated urine is produced in response to vasopressin by the transepithelial recovery of water from the lumen of the kidney collecting tubule through highly water-permeable membranes. In this nephron segment, vasopressin regulat...

journal_title：Nature

authors： Fushimi K,Uchida S,Hara Y,Hirata Y,Marumo F,Sasaki S

更新日期：1993-02-11 00:00:00

abstract：:The extinction rate of populations is predicted to rise under increasing rates of environmental change. If a population experiencing increasingly stressful conditions lacks appropriate phenotypic plasticity or access to more suitable habitats, then genetic change may be the only way to avoid extinction. Evolutionary r...

journal_title：Nature

authors： Lindsey HA,Gallie J,Taylor S,Kerr B

更新日期：2013-02-28 00:00:00

abstract：:The human transcription factor Sp1 binds upstream of certain viral and cellular promoters and activates initiation of RNA synthesis from these promoters by RNA polymerase II. The Sp1 binding sites of both simian virus 40 and a related monkey promoter contain multiple copies of the sequence GGGCGG, three or four of the...

journal_title：Nature

authors： Gidoni D,Dynan WS,Tjian R

更新日期：1984-11-29 00:00:00

abstract：:Black holes become visible when they accrete gas, a common source of which is a close stellar companion. The standard theory for this process (invoking a 'thin accretion disk') does not explain some spectacular phenomena associated with these systems, such as their X-ray variability and relativistic outflows, indicati...

journal_title：Nature

authors： Kanbach G,Straubmeier C,Spruit HC,Belloni T

更新日期：2001-11-08 00:00:00

abstract：:The RNA polymerase II large subunit contains an essential carboxy-terminal domain (CTD) believed to be involved in the response to regulators during transcription initiation. The CTD is phosphorylated on a portion of RNA polymerase II molecules in vivo and it can be phosphorylated by the general transcription factor T...

journal_title：Nature

authors： Serizawa H,Mäkelä TP,Conaway JW,Conaway RC,Weinberg RA,Young RA

更新日期：1995-03-16 00:00:00

abstract：:Ribosomes are translational machineries that catalyse protein synthesis. Ribosome structures from various species are known at the atomic level, but obtaining the structure of the human ribosome has remained a challenge; efforts to address this would be highly relevant with regard to human diseases. Here we report the...

journal_title：Nature

authors： Khatter H,Myasnikov AG,Natchiar SK,Klaholz BP

更新日期：2015-04-30 00:00:00

abstract：:The orexin (also known as hypocretin) G protein-coupled receptors (GPCRs) respond to orexin neuropeptides in the central nervous system to regulate sleep and other behavioural functions in humans. Defects in orexin signalling are responsible for the human diseases of narcolepsy and cataplexy; inhibition of orexin rece...

journal_title：Nature

authors： Yin J,Mobarec JC,Kolb P,Rosenbaum DM

更新日期：2015-03-12 00:00:00

abstract：:The 2.2 A crystal structure of activated rod transducin, Gt alpha.GTP gamma S, shows the bound GTP gamma S molecule occluded deep in a cleft between a domain structurally homologous to small GTPases and a helical domain unique to heterotrimeric G proteins. The structure, when combined with biochemical and genetic stud...

journal_title：Nature

authors： Noel JP,Hamm HE,Sigler PB

更新日期：1993-12-16 00:00:00

abstract：:Four-residue beta-turns and larger loop structures represent a significant fraction of globular protein surfaces and play an important role in determining the conformation and specificity of enzyme active sites and antibody-combining sites. Turns are an attractive starting point to develop protein design methods, as t...

journal_title：Nature

authors： Hynes TR,Kautz RA,Goodman MA,Gill JF,Fox RO

更新日期：1989-05-04 00:00:00

abstract：:A long-standing goal of artificial intelligence is an algorithm that learns, tabula rasa, superhuman proficiency in challenging domains. Recently, AlphaGo became the first program to defeat a world champion in the game of Go. The tree search in AlphaGo evaluated positions and selected moves using deep neural networks....

journal_title：Nature

authors： Silver D,Schrittwieser J,Simonyan K,Antonoglou I,Huang A,Guez A,Hubert T,Baker L,Lai M,Bolton A,Chen Y,Lillicrap T,Hui F,Sifre L,van den Driessche G,Graepel T,Hassabis D

更新日期：2017-10-18 00:00:00

abstract：:In this Article, owing to an error during the production process, in Fig. 1a, the dark blue and light blue wedges were incorrectly labelled as 'G•C → T•A' and 'G•C → A•T', instead of 'C•G → T•A' and 'C•G → A•T', respectively. Fig. 1 has been corrected online. ...

journal_title：Nature

authors： Gaudelli NM,Komor AC,Rees HA,Packer MS,Badran AH,Bryson DI,Liu DR

更新日期：2018-07-01 00:00:00

abstract：:B-RAF is the most frequently mutated protein kinase in human cancers. The finding that oncogenic mutations in BRAF are common in melanoma, followed by the demonstration that these tumours are dependent on the RAF/MEK/ERK pathway, offered hope that inhibition of B-RAF kinase activity could benefit melanoma patients. He...

journal_title：Nature

authors： Bollag G,Hirth P,Tsai J,Zhang J,Ibrahim PN,Cho H,Spevak W,Zhang C,Zhang Y,Habets G,Burton EA,Wong B,Tsang G,West BL,Powell B,Shellooe R,Marimuthu A,Nguyen H,Zhang KY,Artis DR,Schlessinger J,Su F,Higgins B,Iy

更新日期：2010-09-30 00:00:00

abstract：:The properties of synapses between retinal neurons make an essential contribution to early visual processing. Light produces a graded hyperpolarization in photoreceptors, up to 25 mV in amplitude, and it is conventionally assumed that all of this response range is available for coding visual information. We report her...

journal_title：Nature

authors： Attwell D,Borges S,Wu SM,Wilson M

更新日期：1987-08-06 00:00:00

abstract：:Copper, zinc superoxide dismutase (SOD) catalyses the very rapid two-step dismutation of the toxic superoxide radical (O-2) to molecular oxygen and hydrogen peroxide through the alternate reduction and oxidation of the active-site copper. We report here that after refitting and further refinement of the previous 2 A s...

journal_title：Nature

authors： Tainer JA,Getzoff ED,Richardson JS,Richardson DC

更新日期：1983-11-17 00:00:00

abstract：:Cosmid, yeast artificial chromosome (YAC), P1 and complementary DNA (cDNA) libraries are distributed on high-density filters to the scientific community and experimental results are stored in a common object-based database accessible through the Internet. ...

journal_title：Nature

authors： Zehetner G,Lehrach H

更新日期：1994-02-03 00:00:00

abstract：:D-type cyclins, in association with the cyclin-dependent kinases Cdk4 or Cdk6, promote progression through the G1 phase of the cell cycle by phosphorylating the retinoblastoma protein (RB). The activities of Cdk4 and Cdk6 are constrained by inhibitors such as p16, the product of the CDKN2 gene on human chromosome 9p21...

journal_title：Nature

authors： Lukas J,Parry D,Aagaard L,Mann DJ,Bartkova J,Strauss M,Peters G,Bartek J

更新日期：1995-06-08 00:00:00

abstract：:Molecular noise is a natural phenomenon that is inherent to all biological systems1,2. How stochastic processes give rise to the robust outcomes that support tissue homeostasis remains unclear. Here we use single-molecule RNA fluorescent in situ hybridization (smFISH) on mouse stem cells derived from haematopoietic ti...

journal_title：Nature

authors： Wheat JC,Sella Y,Willcockson M,Skoultchi AI,Bergman A,Singer RH,Steidl U

更新日期：2020-07-01 00:00:00

abstract：:Human B cell stimulatory factor 2 (BSF-2) was originally characterized and isolated as a T cell-derived factor that caused the terminal maturation of activated B cells to immunoglobulin-producing cells. Molecular cloning of the complementary DNA predicts that BSF-2 is a protein of relative molecular mass (Mr) 26,000 s...

journal_title：Nature

authors： Kawano M,Hirano T,Matsuda T,Taga T,Horii Y,Iwato K,Asaoku H,Tang B,Tanabe O,Tanaka H

更新日期：1988-03-03 00:00:00

abstract：:Few intergalactic, plausibly primordial clouds of neutral atomic hydrogen (H(i)) have been found in the local Universe, suggesting that such structures have either dispersed, become ionized or produced a stellar population on gigayear timescales. The Leo ring, a massive (M(H(i)) approximately 1.8 x 10(9)M[symbol: see ...

journal_title：Nature

authors： Thilker DA,Donovan J,Schiminovich D,Bianchi L,Boissier S,de Paz AG,Madore BF,Martin DC,Seibert M

更新日期：2009-02-19 00:00:00

abstract：:In order to direct a movement towards a visual stimulus, visual spatial information must be combined with postural information. For example, directing gaze (eye plus head) towards a visible target requires the combination of retinal image location with eye and head position to determine the location of the target rela...

journal_title：Nature

authors： Snyder LH,Grieve KL,Brotchie P,Andersen RA

更新日期：1998-08-27 00:00:00

abstract：:Membrane-bound receptors often form large assemblies resulting from binding to soluble ligands, cell-surface molecules on other cells and extracellular matrix proteins. For example, the association of membrane proteins with proteins on different cells (trans-interactions) can drive the oligomerization of proteins on t...

journal_title：Nature

authors： Wu Y,Vendome J,Shapiro L,Ben-Shaul A,Honig B

更新日期：2011-07-27 00:00:00

abstract：:In Drosophila melanogaster, the rRNA genes (rDNA) are clustered at single sites on two non-homologous chromosomes, the X and Y. Examination of the structure of X and Y rDNAs with restriction endonucleases reveals that the X rDNA contains repeating units not present in the Y. Such observations, as well as genetic evide...

journal_title：Nature

authors： Tartof KD,Dawid IG

更新日期：1976-09-02 00:00:00

abstract：: ...

journal_title：Nature

authors： Del Bello L

更新日期：2018-12-01 00:00:00

abstract：:Considerable evidence points to a role for G1 cyclin-dependent kinase (CDK) in allowing the accumulation of E2F transcription factor activity and induction of the S phase of the cell cycle. Numerous experiments have also demonstrated a critical role for both Myc and Ras activities in allowing cell-cycle progression. H...

journal_title：Nature

authors： Leone G,DeGregori J,Sears R,Jakoi L,Nevins JR

更新日期：1997-05-22 00:00:00

abstract：:Mov13 mice carry a single Moloney murine leukaemia virus (M-MuLV) proviral copy in the first intron of the alpha 1(I) collagen gene. Virus insertion interferes with the synthesis of stable alpha 1(I) collagen messenger RNA and causes a recessive lethal mutation. The virus insertion has induced changes of the methylati...

journal_title：Nature

authors： Hartung S,Jaenisch R,Breindl M

更新日期：1986-03-27 00:00:00

abstract：:Observations from Earth-orbiting satellites have been a key component in monitoring climate change for the past two decades. This has become possible with the availability of air temperatures from the Microwave Sounding Unit (MSU) since 1979, sea surface temperatures from the Advanced Very High Resolution Radiometer (...

journal_title：Nature

authors： Wentz FJ,Schabel M

更新日期：2000-01-27 00:00:00

abstract：:Nanofabrication strategies are becoming increasingly expensive and equipment-intensive, and consequently less accessible to researchers. As an alternative, scanning probe lithography has become a popular means of preparing nanoscale structures, in part owing to its relatively low cost and high resolution, and a regist...

journal_title：Nature

authors： Shim W,Braunschweig AB,Liao X,Chai J,Lim JK,Zheng G,Mirkin CA

更新日期：2011-01-27 00:00:00

abstract：:Gross chromosome rearrangements (GCRs), such as translocations, deletion of a chromosome arm, interstitial deletions and inversions, are often observed in cancer cells. Spontaneous GCRs are rare in Saccharomyces cerevisiae; however, the existence of mutator mutants with increased genome instability suggests that GCRs ...

journal_title：Nature

authors： Myung K,Chen C,Kolodner RD

更新日期：2001-06-28 00:00:00