Bmi-1 determines the proliferative capacity of normal and leukaemic stem cells.

abstract：:Down's syndrome (DS) or trisomy 21 is the most common genetic cause of mental retardation. Development of the DS brain is associated with decreased neuronal number and abnormal neuronal differentiation, and adults with DS develop Alzheimer's disease. The cause of the neurodegenerative process in DS is unknown. Here we...

journal_title：Nature

authors： Busciglio J,Yankner BA

更新日期：1995-12-21 00:00:00

abstract：:Asteroids are primitive Solar System bodies that evolve both collisionally and through disruptions arising from rapid rotation. These processes can lead to the formation of binary asteroids and to the release of dust, both directly and, in some cases, through uncovering frozen volatiles. In a subset of the asteroids c...

journal_title：Nature

authors： Agarwal J,Jewitt D,Mutchler M,Weaver H,Larson S

更新日期：2017-09-20 00:00:00

abstract：:The amino-terminal region of the common corticotropin/beta-lipotrophin (beta-LPH) precursor has been identified in the AtT-20 mouse tumor cells as a glycopeptide with an apparent molecular weight of 16,000 (the '16K fragment'). A third melanotropin core sequence or gamma-MSH similar to that found in ACTH and beta-LPH ...

journal_title：Nature

authors： Al-Dujaili EA,Hope J,Estivariz FE,Lowry PJ,Edwards CR

更新日期：1981-05-14 00:00:00

abstract：:The Philadelphia chromosome, a chromosomal abnormality that encodes BCR-ABL1, is the defining lesion of chronic myelogenous leukaemia (CML) and a subset of acute lymphoblastic leukaemia (ALL). To define oncogenic lesions that cooperate with BCR-ABL1 to induce ALL, we performed a genome-wide analysis of diagnostic leuk...

journal_title：Nature

authors： Mullighan CG,Miller CB,Radtke I,Phillips LA,Dalton J,Ma J,White D,Hughes TP,Le Beau MM,Pui CH,Relling MV,Shurtleff SA,Downing JR

更新日期：2008-05-01 00:00:00

abstract：:The immunophilins cyclophilin and FK506 binding protein (FKBP) are small, predominantly soluble proteins that bind the immunosuppressant drugs cyclosporin A and FK506, respectively, with high affinity, and which seem to mediate their pharmacological actions. The Ca(2+)-dependent protein phosphatase, calcineurin, binds...

journal_title：Nature

authors： Steiner JP,Dawson TM,Fotuhi M,Glatt CE,Snowman AM,Cohen N,Snyder SH

更新日期：1992-08-13 00:00:00

abstract：:Cyclic GMP-AMP synthase (cGAS) is an innate immune sensor for cytosolic microbial DNA1. After binding DNA, cGAS synthesizes the messenger 2'3'-cyclic GMP-AMP (cGAMP)2-4, which triggers cell-autonomous defence and the production of type I interferons and pro-inflammatory cytokines via the activation of STING5. In addit...

journal_title：Nature

authors： Michalski S,de Oliveira Mann CC,Stafford CA,Witte G,Bartho J,Lammens K,Hornung V,Hopfner KP

更新日期：2020-11-01 00:00:00

abstract：: ...

journal_title：Nature

authors： Else H

更新日期：2018-11-01 00:00:00

abstract：:The coupling of ATP hydrolysis to electron transfer by the enzyme nitrogenase during biological nitrogen fixation is an important example of a nucleotide-dependent transduction mechanism. The crystal structure has been determined for the complex between the Fe-protein and MoFe-protein components of nitrogenase stabili...

journal_title：Nature

authors： Schindelin H,Kisker C,Schlessman JL,Howard JB,Rees DC

更新日期：1997-05-22 00:00:00

abstract：:During animal development, cells have to respond appropriately to localized secreted signals. Proper responses to Hedgehog, transforming growth factor-beta, epidermal growth factor and fibroblast growth factor/Ras signals require cognate inducible antagonists such as Patched, Dad, Argos and Sprouty. Wnt signals are cr...

journal_title：Nature

authors： Zeng W,Wharton KA Jr,Mack JA,Wang K,Gadbaw M,Suyama K,Klein PS,Scott MP

更新日期：2000-02-17 00:00:00

abstract：:Since the discovery of superconductivity in the high-transition-temperature (high-T(c)) copper oxides two decades ago, it has been firmly established that the CuO(2) plane is essential for superconductivity and gives rise to a host of other very unusual properties. A new family of superconductors with the general comp...

journal_title：Nature

authors： Chen TY,Tesanovic Z,Liu RH,Chen XH,Chien CL

更新日期：2008-06-26 00:00:00

abstract：:The rarity and inaccessibility of the earliest primordial germ cells (PGCs) in the mouse embryo thwart efforts to investigate molecular mechanisms of germ-cell specification. stella (also called Dppa3) marks the rare founder population of the germ lineage. Here we differentiate mouse embryonic stem cells carrying a st...

journal_title：Nature

authors： West JA,Viswanathan SR,Yabuuchi A,Cunniff K,Takeuchi A,Park IH,Sero JE,Zhu H,Perez-Atayde A,Frazier AL,Surani MA,Daley GQ

更新日期：2009-08-13 00:00:00

abstract：:Theory predicts that sexual behaviour in animals can evolve rapidly, accelerating the rate of species formation. Here we estimate the rate of speciation in Laupala, a group of forest-dwelling Hawaiian crickets that is characterized primarily through differences in male courtship song. We find that Laupala has the high...

journal_title：Nature

authors： Mendelson TC,Shaw KL

更新日期：2005-01-27 00:00:00

abstract：:Self-reproduction is central to biological life for long-term sustainability and evolutionary adaptation. Although these traits would also be desirable in many engineered systems, the principles of self-reproduction have not been exploited in machine design. Here we create simple machines that act as autonomous modula...

journal_title：Nature

authors： Zykov V,Mytilinaios E,Adams B,Lipson H

更新日期：2005-05-12 00:00:00

abstract：:The inhibitory activity associated with myelin is a major obstacle for successful axon regeneration in the adult mammalian central nervous system (CNS). In addition to myelin-associated glycoprotein (MAG) and Nogo-A, available evidence suggests the existence of additional inhibitors in CNS myelin. We show here that a ...

journal_title：Nature

authors： Wang KC,Koprivica V,Kim JA,Sivasankaran R,Guo Y,Neve RL,He Z

更新日期：2002-06-27 00:00:00

abstract：:Apes and Old World monkeys are prominent components of modern African and Asian ecosystems, yet the earliest phases of their evolutionary history have remained largely undocumented. The absence of crown catarrhine fossils older than ∼20 million years (Myr) has stood in stark contrast to molecular divergence estimates ...

journal_title：Nature

authors： Stevens NJ,Seiffert ER,O'Connor PM,Roberts EM,Schmitz MD,Krause C,Gorscak E,Ngasala S,Hieronymus TL,Temu J

更新日期：2013-05-30 00:00:00

abstract：:Apoptosis is a highly regulated process that is crucial for normal development and homeostasis of multicellular organisms. The p35 protein from baculoviruses effectively prevents apoptosis by its broad-spectrum caspase inhibition. Here we report the crystal structure of p35 in complex with human caspase-8 at 3.0 A res...

journal_title：Nature

authors： Xu G,Cirilli M,Huang Y,Rich RL,Myszka DG,Wu H

更新日期：2001-03-22 00:00:00

abstract：:Understanding the relative timings of climate events in the Northern and Southern hemispheres is a prerequisite for determining the causes of abrupt climate changes. But climate records from the Patagonian Andes and New Zealand for the period of transition from glacial to interglacial conditions--about 14.6-10 kyr bef...

journal_title：Nature

authors： Moreno PI,Jacobson GL Jr,Lowell TV,Denton GH

更新日期：2001-02-15 00:00:00

abstract：:The human T cell erythrocyte receptor (CD2 antigen) allows thymocytes and mature T cells to adhere to thymic epithelium and target cells through a cell surface protein, LFA-3 (refs 1-6). Monoclonal antibodies recognizing CD2 can either block adhesion or, in certain combinations, induce an antigen-independent T cell ac...

journal_title：Nature

authors： Peterson A,Seed B

更新日期：1987-10-29 00:00:00

abstract：:Susceptibility to some human diseases is linked, albeit weakly, to major transplantation antigens (HLA) encoded by the major histocompatibility gene complex (MHC). Here we have studied MHC/disease association in inbred strains of mice after intracerebral (i.c.) injection of lymphocytic choriomeningitis virus (LCMV). T...

journal_title：Nature

authors： Zinkernagel RM,Pfau CJ,Hengartner H,Althage A

更新日期：1985-08-29 00:00:00

abstract：:A temperature sensitive mutant has been isolated for the first time from a replication defective acute leukaemia virus, AEV. In vivo, at 41 degrees C, the mutant shows a reduced leukaemogenic potential. In vitro, in erythroblasts transformed at 35 degrees C, haemoglobin synthesis can be induced by a shift to 41 degree...

journal_title：Nature

authors： Graf T,Ade N,Beug H

更新日期：1978-10-12 00:00:00

abstract：:Helminth parasitic infections are a major global health and social burden. The host defence against helminths such as Nippostrongylus brasiliensis is orchestrated by type 2 cell-mediated immunity. Induction of type 2 cytokines, including interleukins (IL) IL-4 and IL-13, induce goblet cell hyperplasia with mucus produ...

journal_title：Nature

authors： Gerbe F,Sidot E,Smyth DJ,Ohmoto M,Matsumoto I,Dardalhon V,Cesses P,Garnier L,Pouzolles M,Brulin B,Bruschi M,Harcus Y,Zimmermann VS,Taylor N,Maizels RM,Jay P

更新日期：2016-01-14 00:00:00

abstract：:Activity in the motor cortex predicts movements, seconds before they are initiated. This preparatory activity has been observed across cortical layers, including in descending pyramidal tract neurons in layer 5. A key question is how preparatory activity is maintained without causing movement, and is ultimately conver...

journal_title：Nature

authors： Economo MN,Viswanathan S,Tasic B,Bas E,Winnubst J,Menon V,Graybuck LT,Nguyen TN,Smith KA,Yao Z,Wang L,Gerfen CR,Chandrashekar J,Zeng H,Looger LL,Svoboda K

更新日期：2018-11-01 00:00:00

abstract：:The recently emerged fields of metamaterials and transformation optics promise a family of exciting applications such as invisibility, optical imaging with deeply subwavelength resolution and nanophotonics with the potential for much faster information processing. The possibility of creating optical negative-index met...

journal_title：Nature

authors： Xiao S,Drachev VP,Kildishev AV,Ni X,Chettiar UK,Yuan HK,Shalaev VM

更新日期：2010-08-05 00:00:00

abstract：:Tobacco smoking causes lung cancer1-3, a process that is driven by more than 60 carcinogens in cigarette smoke that directly damage and mutate DNA4,5. The profound effects of tobacco on the genome of lung cancer cells are well-documented6-10, but equivalent data for normal bronchial cells are lacking. Here we sequence...

journal_title：Nature

authors： Yoshida K,Gowers KHC,Lee-Six H,Chandrasekharan DP,Coorens T,Maughan EF,Beal K,Menzies A,Millar FR,Anderson E,Clarke SE,Pennycuick A,Thakrar RM,Butler CR,Kakiuchi N,Hirano T,Hynds RE,Stratton MR,Martincorena I,Janes

更新日期：2020-02-01 00:00:00

abstract：:Polymer electrolyte membrane fuel cells (PEMFCs) running on hydrogen are attractive alternative power supplies for a range of applications, with in situ release of the required hydrogen from a stable liquid offering one way of ensuring its safe storage and transportation before use. The use of methanol is particularly...

journal_title：Nature

authors： Lin L,Zhou W,Gao R,Yao S,Zhang X,Xu W,Zheng S,Jiang Z,Yu Q,Li YW,Shi C,Wen XD,Ma D

更新日期：2017-04-06 00:00:00

abstract：:Distance determination in animals can be achieved by visual or non-visual cues. Weakly electric fish use active electrolocation for orientation in the dark. By perceiving self-produced electric signals with epidermal electroreceptors, fish can detect, locate and analyse nearby objects. Distance discrimination, however...

journal_title：Nature

authors： von der Emde G,Schwarz S,Gomez L,Budelli R,Grant K

更新日期：1998-10-29 00:00:00

abstract：:The advent of endothermy, which is achieved through the continuous homeostatic regulation of body temperature and metabolism1,2, is a defining feature of mammalian and avian evolution. However, when challenged by food deprivation or harsh environmental conditions, many mammalian species initiate adaptive energy-conser...

journal_title：Nature

authors： Hrvatin S,Sun S,Wilcox OF,Yao H,Lavin-Peter AJ,Cicconet M,Assad EG,Palmer ME,Aronson S,Banks AS,Griffith EC,Greenberg ME

更新日期：2020-07-01 00:00:00

abstract：:It has been proposed that the trans-sarcolemmal influx of Ca2+ occurring during the plateau of the mammalian cardiac action potentials is insufficient in itself to activate the myofilaments, but can trigger a release of Ca2+ from the sarcoplasmic reticulum (SR) which is sufficient for activation. The demonstration of ...

journal_title：Nature

authors： Fabiato A,Fabiato F

更新日期：1979-09-13 00:00:00

abstract：:The biosynthesis of many of the complement proteins by cells of the monocyte-macrophage series has been established. Studies on these cells using radiolabelled amino acids demonstrated synthesis of precursor proteins (pro-complement), and the native complement protein similar in size to that found in the plasma. Howev...

journal_title：Nature

authors： Ooi YM,Ooi BS

更新日期：1982-07-22 00:00:00

abstract：:The axial relationship between the collagen and mineral componetns in calcified turkey leg tendon was investigated using low-angle X-ray and neutron diffraction. The results indicate that the mineral is arranged with the same axial periodicity as the collagen and occupies the gap region of the collagen structure. ...

journal_title：Nature

authors： White SW,Hulmes DJ,Miller A,Timmins PA

更新日期：1977-03-31 00:00:00