Molecular architecture and assembly of the DDB1-CUL4A ubiquitin ligase machinery.

abstract：:Microcrystals of the lipoprotein-phosphoprotein complex which are found in the oocytes of Xenopus laevis were examined using electron microscopy. Analysis of Fourier transforms of the images of the (010) and (001) projections showed the space group to be P2(1)22(1). Ten projections were combined to produce a map of th...

journal_title：Nature

authors： Ohlendorf DH,Wrenn RF,Banaszak LJ

更新日期：1978-03-02 00:00:00

abstract：:Metamaterials are artificial optical media composed of sub-wavelength metallic and dielectric building blocks that feature optical phenomena not present in naturally occurring materials. Although they can serve as the basis for unique optical devices that mould the flow of light in unconventional ways, three-dimension...

journal_title：Nature

authors： High AA,Devlin RC,Dibos A,Polking M,Wild DS,Perczel J,de Leon NP,Lukin MD,Park H

更新日期：2015-06-11 00:00:00

abstract：:De novo-designed proteins1-3 hold great promise as building blocks for synthetic circuits, and can complement the use of engineered variants of natural proteins4-7. One such designer protein-degronLOCKR, which is based on 'latching orthogonal cage-key proteins' (LOCKR) technology8-is a switch that degrades a protein o...

journal_title：Nature

authors： Ng AH,Nguyen TH,Gómez-Schiavon M,Dods G,Langan RA,Boyken SE,Samson JA,Waldburger LM,Dueber JE,Baker D,El-Samad H

更新日期：2019-08-01 00:00:00

abstract：:The ability to trap an object-whether a single atom or a macroscopic entity-affects fields as diverse as quantum optics, soft condensed-matter physics, biophysics and clinical medicine. Many sophisticated methodologies have been developed to counter the randomizing effect of Brownian motion in solution, but stable tra...

journal_title：Nature

authors： Krishnan M,Mojarad N,Kukura P,Sandoghdar V

更新日期：2010-10-07 00:00:00

abstract：:Dense plexuses of neurones containing immunoreactive vasoactive intestinal peptide (VIP) have been found in discrete areas of the central nervous system and in peripheral organs, including the gastrointestinal tract, pancreas and urogenital system. In many of these locations VIP is concentrated in nerve endings, where...

journal_title：Nature

authors： Giachetti A,Said SI

更新日期：1979-10-18 00:00:00

abstract：:Neurotransmitter release is initiated by influx of Ca2+ through voltage-gated Ca2+ channels, within 200 microseconds of the action potential arriving at the synaptic terminal, as the Ca2+ concentration increases from 100 nM to > 200 microM. Exocytosis requires high Ca2+ concentration, with a threshold of 20-50 microM ...

journal_title：Nature

authors： Sheng ZH,Rettig J,Cook T,Catterall WA

更新日期：1996-02-01 00:00:00

abstract：:The microtubule cytoskeleton is essential to cell morphogenesis. Growing microtubule plus ends have emerged as dynamic regulatory sites in which specialized proteins, called plus-end-binding proteins (+TIPs), bind and regulate the proper functioning of microtubules. However, the molecular mechanism of plus-end associa...

journal_title：Nature

authors： Bieling P,Laan L,Schek H,Munteanu EL,Sandblad L,Dogterom M,Brunner D,Surrey T

更新日期：2007-12-13 00:00:00

abstract：:During early mammalian development, as the pluripotent cells that give rise to all of the tissues of the body proliferate and expand in number, they pass through transition states marked by a stepwise restriction in developmental potential and by changes in the expression of key regulatory genes. Recent findings show ...

journal_title：Nature

authors： Pera MF,Tam PP

更新日期：2010-06-10 00:00:00

abstract：:The extent to which an organism is selected to invest in defences against pathogens and parasites depends on the advantages that ensue should infection occur, but also on the costs of maintaining defences in the absence of infection. The presence of heritable variation in resistance suggests that costs exist, but we k...

journal_title：Nature

authors： Kraaijeveld AR,Godfray HC

更新日期：1997-09-18 00:00:00

abstract：:The dwarfing of large mammals on islands occurred repeatedly in the Pleistocene. Elephants, deer, hippopotami and other species became dwarfed on islands in Indonesia, the Mediterranean, the east Pacific and elsewhere. In most cases, the full-sized ancestral form can be recognized among the adjacent mainland fauna, bu...

journal_title：Nature

authors： Lister AM

更新日期：1989-11-30 00:00:00

abstract：:The crystal structure of human H-Ras complexed with the Ras guanine-nucleotide-exchange-factor region of the Son of sevenless (Sos) protein has been determined at 2.8 A resolution. The normally tight interaction of nucleotides with Ras is disrupted by Sos in two ways. First, the insertion into Ras of an alpha-helix fr...

journal_title：Nature

authors： Boriack-Sjodin PA,Margarit SM,Bar-Sagi D,Kuriyan J

更新日期：1998-07-23 00:00:00

abstract：:Haem is essential for living organisms, functioning as a crucial element in the redox-sensitive reaction centre in haemproteins. During the biogenesis of these proteins, the haem cofactor is typically incorporated enzymatically into the haem pockets of the apo-haemprotein as the functionally indispensable prosthetic g...

journal_title：Nature

authors： Tang XD,Xu R,Reynolds MF,Garcia ML,Heinemann SH,Hoshi T

更新日期：2003-10-02 00:00:00

abstract：:The development of a multicellular organism involves a delicate balance among the processes of proliferation, differentiation and death. Naturally occurring cell death aids tissue remodelling, eliminates supernumerary cell populations and provides structural elements such as hair and skin. In the nervous system, selec...

journal_title：Nature

authors： Smeyne RJ,Vendrell M,Hayward M,Baker SJ,Miao GG,Schilling K,Robertson LM,Curran T,Morgan JI

更新日期：1993-05-13 00:00:00

abstract：:There is a clear case for drug treatments to be selected according to the characteristics of an individual patient, in order to improve efficacy and reduce the number and severity of adverse drug reactions. However, such personalization of drug treatments requires the ability to predict how different individuals will ...

journal_title：Nature

authors： Clayton TA,Lindon JC,Cloarec O,Antti H,Charuel C,Hanton G,Provost JP,Le Net JL,Baker D,Walley RJ,Everett JR,Nicholson JK

更新日期：2006-04-20 00:00:00

abstract：:Chemotaxis in Caenorhabditis elegans, like chemotaxis in bacteria, involves a random walk biased by the time derivative of attractant concentration, but how the derivative is computed is unknown. Laser ablations have shown that the strongest deficits in chemotaxis to salts are obtained when the ASE chemosensory neuron...

journal_title：Nature

authors： Suzuki H,Thiele TR,Faumont S,Ezcurra M,Lockery SR,Schafer WR

更新日期：2008-07-03 00:00:00

abstract：:The 3-A structure of DNA-binding protein II, which exhibits histone-like properties in bacteria, has been determined. The molecule is dimeric and appears to bind to the phosphate backbone of DNA through two symmetry-related arms. A mechanism by which the protein induces DNA supercoiling is proposed. ...

journal_title：Nature

authors： Tanaka I,Appelt K,Dijk J,White SW,Wilson KS

更新日期：1984-08-02 00:00:00

abstract：:The nucleus of mammalian cells displays a distinct spatial segregation of active euchromatic and inactive heterochromatic regions of the genome1,2. In conventional nuclei, microscopy shows that euchromatin is localized in the nuclear interior and heterochromatin at the nuclear periphery1,2. Genome-wide chromosome conf...

journal_title：Nature

authors： Falk M,Feodorova Y,Naumova N,Imakaev M,Lajoie BR,Leonhardt H,Joffe B,Dekker J,Fudenberg G,Solovei I,Mirny LA

更新日期：2019-06-01 00:00:00

abstract：:The structural components involved in transduction of extracellular signals as diverse as a photon of light impinging on the retina or a hormone molecule impinging on a cell have been highly conserved. These components include a recognition unit or receptor (for example, the beta-adrenergic receptor (beta AR) for cate...

journal_title：Nature

authors： Benovic JL,Mayor F Jr,Somers RL,Caron MG,Lefkowitz RJ

更新日期：1986-06-26 00:00:00

abstract：:The Altai region of Siberia was inhabited for parts of the Pleistocene by at least two groups of archaic hominins-Denisovans and Neanderthals. Denisova Cave, uniquely, contains stratified deposits that preserve skeletal and genetic evidence of both hominins, artefacts made from stone and other materials, and a range o...

journal_title：Nature

authors： Jacobs Z,Li B,Shunkov MV,Kozlikin MB,Bolikhovskaya NS,Agadjanian AK,Uliyanov VA,Vasiliev SK,O'Gorman K,Derevianko AP,Roberts RG

更新日期：2019-01-01 00:00:00

abstract：:Miocene hominoid material is very scarce and has previously only been reported as cranial fragments in the Old World. Here we describe a new specimen of Ouranopithecus macedoniensis, which consists of the right part of the face of an adult male with a portion of the frontal bone, a portion of the left part of the face...

journal_title：Nature

authors： de Bonis L,Bouvrain G,Geraads D,Koufos G

更新日期：1990-06-21 00:00:00

abstract：:The neurohypophysial hormone vasopressin exerts antidiuretic, vasopressor and behavioural effects (for example, facilitation of memory processes). Vasopressin may alter animal behaviour via direct effect on brain processes. Recently, however, it has been suggested that vasopressin acts mainly at peripheral receptor sy...

journal_title：Nature

authors： de Wied D,Gaffori O,van Ree JM,de Jong W

更新日期：1984-03-15 00:00:00

abstract：:The dopa analogue 6-fluorodopa (6-FD) used with positron emission tomography (PET) allows in vivo visualization of dopamine and its metabolites in nigrostriatal nerve endings. We have now found abnormal 6-FD scans in four subjects exposed to 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). None had parkinsonism. T...

journal_title：Nature

authors： Calne DB,Langston JW,Martin WR,Stoessl AJ,Ruth TJ,Adam MJ,Pate BD,Schulzer M

更新日期：1985-09-19 00:00:00

abstract：:The T-cell receptor has been studied intensely over the past 10 years in an effort to understand the molecular basis for major histocompatibility complex (MHC) restricted antigen recognition. The use of anti-receptor monoclonal antibodies to isolate and characterize the receptor from human and murine T-cell clones has...

journal_title：Nature

authors： Sim GK,Yagüe J,Nelson J,Marrack P,Palmer E,Augustin A,Kappler J

更新日期：1984-12-20 00:00:00

abstract：:The polarized architecture of epithelial cells depends on the highly stereotypic distribution of cellular junctions and other membrane-associated protein complexes. In epithelial cells of the Drosophila embryo, three distinct domains subdivide the lateral plasma membrane. The most apical one comprises the subapical co...

journal_title：Nature

authors： Bachmann A,Schneider M,Theilenberg E,Grawe F,Knust E

更新日期：2001-12-06 00:00:00

abstract：:Modern high-power lasers can generate extreme states of matter that are relevant to astrophysics, equation-of-state studies and fusion energy research. Laser-driven implosions of spherical polymer shells have, for example, achieved an increase in density of 1,000 times relative to the solid state. These densities are ...

journal_title：Nature

authors： Kodama R,Norreys PA,Mima K,Dangor AE,Evans RG,Fujita H,Kitagawa Y,Krushelnick K,Miyakoshi T,Miyanaga N,Norimatsu T,Rose SJ,Shozaki T,Shigemori K,Sunahara A,Tampo M,Tanaka KA,Toyama Y,Yamanaka T,Zepf M

更新日期：2001-08-23 00:00:00

abstract：: ...

journal_title：Nature

authors： Ainsworth C

更新日期：2017-11-08 00:00:00

abstract：:IN 1969, Murozumi et al.1 demonstrated that the concentration of lead in Greenland snow had increased by a factor of 200 since ancient times, and concluded that most of this increase was a result of the use of alkyl-leaded petrol. Partly because of these findings, the United States and other western countries limited ...

journal_title：Nature

authors： Rosman KJR,Chisholm W,Boutron CF,Candelone JP,Görlach U

更新日期：1993-03-25 00:00:00

abstract：:Japan's Ministry of Health will fund a major new heart transplantation project in an effort to resume heart transplants halted by a public outcry against the first such transplant 17 years ago. Opposition to organ donation, which has been attributed variously to Buddhist and Confucian views of the body and to Japanes...

journal_title：Nature

authors： Anderson A

更新日期：1985-01-31 00:00:00

abstract：:HLA class II molecules are a highly polymorphic family of dimeric cell-surface proteins primarily involved in regulating T-cell responses to extrinsic antigens. To define regions of class II molecules involved in T-cell recognition, we have now compared sequences of three HLA DR beta cDNA clones obtained from cells th...

journal_title：Nature

authors： Cairns JS,Curtsinger JM,Dahl CA,Freeman S,Alter BJ,Bach FH

更新日期：1985-09-12 00:00:00

abstract：:The protein HLA-E is a non-classical major histocompatibility complex (MHC) molecule of limited sequence variability. Its expression on the cell surface is regulated by the binding of peptides derived from the signal sequence of some other MHC class I molecules. Here we report the identification of ligands for HLA-E. ...

journal_title：Nature

authors： Braud VM,Allan DS,O'Callaghan CA,Söderström K,D'Andrea A,Ogg GS,Lazetic S,Young NT,Bell JI,Phillips JH,Lanier LL,McMichael AJ

更新日期：1998-02-19 00:00:00