CpG methylation is maintained in human cancer cells lacking DNMT1.

abstract：:Light absorption by the visual pigment rhodopsin triggers, through G-protein coupling, a cascade of events in the outer segment of the rod cell of the vertebrate retina that results in membrane hyperpolarization and nerve excitation. Rhodopsin, which contains 348 amino acids, has seven helices that cross the disk memb...

journal_title：Nature

authors： Schertler GF,Villa C,Henderson R

更新日期：1993-04-22 00:00:00

abstract：:The contractile proteins of adult skeletal and cardiac muscle tissue are very similar. Some of these proteins are identical in amino acid sequence or differ only slightly. Various structural studies have shown that the heavy and light chains of myosin are also homologous in skeletal and cardiac muscles. In developing ...

journal_title：Nature

authors： Whalen RG,Sell SM

更新日期：1980-08-14 00:00:00

abstract：:Double-stranded RNAs (dsRNAs) induce post-transcriptional gene silencing in several species of animal and plant. In plants, dsRNAs targeted to CpG islands within a promoter can also induce RNA-directed DNA methylation; however, it remains unclear whether gene silencing mediated by DNA methylation can be induced by dsR...

journal_title：Nature

authors： Kawasaki H,Taira K

更新日期：2004-09-09 00:00:00

abstract：:The National Institutes of Health's Recombinant DNA Advisory Committee (RAC) has approved a commercial proposal by Advanced Genetic Sciences Inc. to field-test recombinant ice-nucleating bacteria. Its decision came two weeks after a federal judge halted a similar trial by researchers from the University of California...

journal_title：Nature

authors： Budiansky S

更新日期：1984-06-07 00:00:00

abstract：:Is the big-bang hot, warm or cold? And are galactic masses determined by the interplay of gravitational and strong interactions in the very early universe? ...

journal_title：Nature

authors： Harrison ER

更新日期：1970-10-17 00:00:00

abstract：:The RIG-like helicase (RLH) family of intracellular receptors detect viral nucleic acid and signal through the mitochondrial antiviral signalling adaptor MAVS (also known as Cardif, VISA and IPS-1) during a viral infection. MAVS activation leads to the rapid production of antiviral cytokines, including type 1 interfer...

journal_title：Nature

authors： Moore CB,Bergstralh DT,Duncan JA,Lei Y,Morrison TE,Zimmermann AG,Accavitti-Loper MA,Madden VJ,Sun L,Ye Z,Lich JD,Heise MT,Chen Z,Ting JP

更新日期：2008-01-31 00:00:00

abstract：: ...

journal_title：Nature

authors： Tall AR,Jelic S

更新日期：2019-02-01 00:00:00

abstract：:The abundant nuclear enzyme poly(ADP-ribose) polymerase catalyses the synthesis of poly(ADP-ribose) from nicotinamide adenine dinucleotide (NAD+). This protein has an N-terminal DNA-binding domain containing two zinc-fingers, which is linked to the C-terminal NAD(+)-binding domain by a short region containing several ...

journal_title：Nature

authors： Satoh MS,Lindahl T

更新日期：1992-03-26 00:00:00

abstract：:Activated T lymphocytes differentiate into effector cells tailored to meet disparate challenges to host integrity. For example, type 1 and type 2 helper (T(H)1 and T(H)2) cells secrete cytokines that enhance cell-mediated and humoral immunity, respectively. The chemokine monocyte chemoattractant protein-1 (MCP-1) can ...

journal_title：Nature

authors： Gu L,Tseng S,Horner RM,Tam C,Loda M,Rollins BJ

更新日期：2000-03-23 00:00:00

abstract：:In this Letter, owing to a copying error in Illustrator, the two centre panels in Extended Data Fig. 7a were identical. This error has been corrected online. The old, incorrect Extended Data Fig. 7 is shown in the Supplementary Information to this Amendment for transparency. Some typos ('occurence') in Figs. 1, 2 and ...

journal_title：Nature

authors： Andersen TG,Naseer S,Ursache R,Wybouw B,Smet W,De Rybel B,Vermeer JEM,Geldner N

更新日期：2018-07-01 00:00:00

abstract：:The partial amino-acid sequence of purified human transforming growth factor-beta (TGF-beta) was used to identify a series of cDNA clones encoding the protein. The cDNA sequence indicates that the 112-amino acid monomeric form of the natural TGF-beta homodimer is derived proteolytically from a much longer precursor po...

journal_title：Nature

authors： Derynck R,Jarrett JA,Chen EY,Eaton DH,Bell JR,Assoian RK,Roberts AB,Sporn MB,Goeddel DV

更新日期：1985-08-22 00:00:00

abstract：:Calcium (Ca(2+))-activated chloride channels are fundamental mediators in numerous physiological processes including transepithelial secretion, cardiac and neuronal excitation, sensory transduction, smooth muscle contraction and fertilization. Despite their physiological importance, their molecular identity has remain...

journal_title：Nature

authors： Yang YD,Cho H,Koo JY,Tak MH,Cho Y,Shim WS,Park SP,Lee J,Lee B,Kim BM,Raouf R,Shin YK,Oh U

更新日期：2008-10-30 00:00:00

abstract：:The molecular and cellular basis of T-lymphocyte activation remains a central question in immunology. The growth of already proliferating T cells is known to depend on T-cell growth factor (TCGF), a physiological mitogen. Noncycling T lymphocytes, however, are not sensitive to TCGF. They require a short contact with m...

journal_title：Nature

authors： Larsson EL,Iscove NN,Coutinho A

更新日期：1980-02-14 00:00:00

abstract：:It has been shown that Neanderthals contributed genetically to modern humans outside Africa 47,000-65,000 years ago. Here we analyse the genomes of a Neanderthal and a Denisovan from the Altai Mountains in Siberia together with the sequences of chromosome 21 of two Neanderthals from Spain and Croatia. We find that a p...

journal_title：Nature

authors： Kuhlwilm M,Gronau I,Hubisz MJ,de Filippo C,Prado-Martinez J,Kircher M,Fu Q,Burbano HA,Lalueza-Fox C,de la Rasilla M,Rosas A,Rudan P,Brajkovic D,Kucan Ž,Gušic I,Marques-Bonet T,Andrés AM,Viola B,Pääbo S,Meyer M,Sie

更新日期：2016-02-25 00:00:00

abstract：:In the chick embryo, left-right asymmetric patterns of gene expression in the lateral plate mesoderm are initiated by signals located in and around Hensen's node. Here we show that Caronte (Car), a secreted protein encoded by a member of the Cerberus/Dan gene family, mediates the Sonic hedgehog (Shh)-dependent inducti...

journal_title：Nature

authors： Rodríguez Esteban C,Capdevila J,Economides AN,Pascual J,Ortiz A,Izpisúa Belmonte JC

更新日期：1999-09-16 00:00:00

abstract：:Crossover recombination events between homologous chromosomes are required to form chiasmata, temporary connections between homologues that ensure their proper segregation at meiosis I. Despite this requirement for crossovers and an excess of the double-strand DNA breaks that are the initiating events for meiotic reco...

journal_title：Nature

authors： Libuda DE,Uzawa S,Meyer BJ,Villeneuve AM

更新日期：2013-10-31 00:00:00

abstract：:We are facing a global metabolic health crisis provoked by an obesity epidemic. Here we report the human gut microbial composition in a population sample of 123 non-obese and 169 obese Danish individuals. We find two groups of individuals that differ by the number of gut microbial genes and thus gut bacterial richness...

journal_title：Nature

authors： Le Chatelier E,Nielsen T,Qin J,Prifti E,Hildebrand F,Falony G,Almeida M,Arumugam M,Batto JM,Kennedy S,Leonard P,Li J,Burgdorf K,Grarup N,Jørgensen T,Brandslund I,Nielsen HB,Juncker AS,Bertalan M,Levenez F,Pons N,

更新日期：2013-08-29 00:00:00

abstract：:Quantum degenerate Fermi gases provide a remarkable opportunity to study strongly interacting fermions. In contrast to other Fermi systems, such as superconductors, neutron stars or the quark-gluon plasma of the early Universe, these gases have low densities and their interactions can be precisely controlled over an e...

journal_title：Nature

authors： Zwierlein MW,Abo-Shaeer JR,Schirotzek A,Schunck CH,Ketterle W

更新日期：2005-06-23 00:00:00

abstract：:The first event in the initiation of an immune response is the capture and presentation of antigen to T cells. Such presentation involves two distinct steps: (1) display of the antigen, which requires uptake, processing and re-expression of the antigen in association with MHC molecules on the presenting cell surface; ...

journal_title：Nature

authors： Lassila O,Vainio O,Matzinger P

更新日期：1988-07-21 00:00:00

abstract：:Calnexin, an endoplasmic reticulum transmembrane protein, represents a new type of molecular chaperone that selectively associates in a transient fashion with newly synthesized monomeric glycoproteins in HepG2 cells. Calnexin only recognizes glycoproteins when they are incompletely folded. Dissociation of glycoprotein...

journal_title：Nature

authors： Ou WJ,Cameron PH,Thomas DY,Bergeron JJ

更新日期：1993-08-26 00:00:00

abstract：:Ten eleven translocation (TET) enzymes, including TET1, TET2 and TET3, convert 5-methylcytosine to 5-hydroxymethylcytosine and regulate gene transcription. However, the molecular mechanism by which TET family enzymes regulate gene transcription remains elusive. Using protein affinity purification, here we search for f...

journal_title：Nature

authors： Chen Q,Chen Y,Bian C,Fujiki R,Yu X

更新日期：2013-01-24 00:00:00

abstract：:Human T-cell leukaemia virus (HTLV), first isolated in the United States from a patient with cutaneous T-cell lymphoma, is a unique horizontally transmitted retrovirus which is highly associated with certain adult T-cell malignancies. Also, HTLV can be transmitted in vitro to cord blood T-lymphocytes. In the accompany...

journal_title：Nature

authors： Clarke MF,Gelmann EP,Reitz MS Jr

更新日期：1983-09-01 00:00:00

abstract：:The discovery of intervening sequences (introns) in DNA led Gilbert and Tonegawa to suggest that a new protein could have been produced by bringing together certain segments of pre-existing ones. However, Blake argued that if DNA was so organized that coding sequences (exons) correspond to structural as well as functi...

journal_title：Nature

authors： Go M

更新日期：1981-05-07 00:00:00

abstract：:During the fission yeast cell cycle, the rate of polyadenylated messenger RNA synthesis doubles when the cell reaches a critical size. This size-related control maintains average mRNA content in balance with total cell mass during exponential growth, even in cells growing at different absolute growth rates per cell. ...

journal_title：Nature

authors： Fraser RS,Nurse P

更新日期：1978-02-23 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：:Sex differences in behaviour extend to cognitive-like processes such as learning, but the underlying dimorphisms in neural circuit development and organization that generate these behavioural differences are largely unknown. Here we define at the single-cell level-from development, through neural circuit connectivity,...

journal_title：Nature

authors： Sammut M,Cook SJ,Nguyen KCQ,Felton T,Hall DH,Emmons SW,Poole RJ,Barrios A

更新日期：2015-10-15 00:00:00

abstract：:Conrad et al. have generated human adult germline stem cells (haGSCs) from human testicular tissue, which they claim have similar pluripotent properties to human embryonic stem cells (hESCs). Here we investigate the pluripotency of haGSCs by using global gene-expression analysis based on their gene array data and comp...

journal_title：Nature

authors： Ko K,Araúzo-Bravo MJ,Tapia N,Kim J,Lin Q,Bernemann C,Han DW,Gentile L,Reinhardt P,Greber B,Schneider RK,Kliesch S,Zenke M,Schöler HR

更新日期：2010-06-24 00:00:00

abstract：:Pluto's tenuous nitrogen atmosphere was first detected by the imprint left on the light curve of a star that was occulted by the planet in 1985 (ref. 1), and studied more extensively during a second occultation event in 1988 (refs 2-6). These events are, however, quite rare and Pluto's atmosphere remains poorly unders...

journal_title：Nature

authors： Sicardy B,Widemann T,Lellouch E,Veillet C,Cuillandre JC,Colas F,Roques F,Beisker W,Kretlow M,Lagrange AM,Gendron E,Lacombe F,Lecacheux J,Birnbaum C,Fienga A,Leyrat C,Maury A,Raynaud E,Renner S,Schultheis M,Brooks

更新日期：2003-07-10 00:00:00

abstract：:Double-walled carbon nanotubes are needed in a pure, highly crystalline form before features such as their electronic properties, thermal transport and mechanical behaviour can be investigated. Here we fabricate a paper-like material that consists of hexagonally packed bundles of clean, coaxial carbon nanotubes whose ...

journal_title：Nature

authors： Endo M,Muramatsu H,Hayashi T,Kim YA,Terrones M,Dresselhaus MS

更新日期：2005-02-03 00:00:00

abstract：:CYCLINS are proteins synthesized during each cell cycle and abruptly destroyed in each mitosis. Cyclins have been implicated in the induction of mitosis and are associated with the serine-threonine protein kinase p34cdc2 as components of mitosis promoting factor (MPF). On the basis of conserved sequence motifs cyclins...

journal_title：Nature

authors： Pines J,Hunter T

更新日期：1990-08-23 00:00:00