Molecular basis of a yeast prion species barrier.

abstract：:Two-pore domain (K2P) K(+) channels are major regulators of excitability that endow cells with an outwardly rectifying background "leak" conductance. In some K2P channels, strong voltage-dependent activation has been observed, but the mechanism remains unresolved because they lack a canonical voltage-sensing domain. H...

journal_title：Cell

authors： Schewe M,Nematian-Ardestani E,Sun H,Musinszki M,Cordeiro S,Bucci G,de Groot BL,Tucker SJ,Rapedius M,Baukrowitz T

更新日期：2016-02-25 00:00:00

abstract：:Phosphoinositide 3 kinase (PI3K) is a key signaling enzyme implicated in receptor-stimulated mitogenesis, oxidative bursting in neutrophils, membrane ruffling, and glucose uptake. A PI3K has already been purified, cloned, and shown to be regulated by receptors that act via tyrosine kinase-dependent regulatory mechanis...

journal_title：Cell

authors： Stephens L,Smrcka A,Cooke FT,Jackson TR,Sternweis PC,Hawkins PT

更新日期：1994-04-08 00:00:00

abstract：:We report the identification and characterization of a class of IS10 transposase mutants that carry out only some of the steps required for transposition. These mutants were identified among transposition-defective mutants as a specific subclass that retains the wild-type ability to induce SOS functions in the presenc...

journal_title：Cell

authors： Haniford DB,Chelouche AR,Kleckner N

更新日期：1989-10-20 00:00:00

abstract：:DDB1, a component of the Cul4 ubiquitin ligase complex, promotes protein ubiquitination in diverse cellular functions, including nuclear excision repair, regulation of the cell cycle, and DNA replication. To investigate its physiological significance, we generated mice with null and floxed alleles of the DDB1 gene. He...

journal_title：Cell

authors： Cang Y,Zhang J,Nicholas SA,Bastien J,Li B,Zhou P,Goff SP

更新日期：2006-12-01 00:00:00

abstract：:K-Ras is targeted to the plasma membrane by a C-terminal membrane anchor that comprises a farnesyl-cysteine-methyl-ester and a polybasic domain. We used quantitative spatial imaging and atomistic molecular dynamics simulations to examine molecular details of K-Ras plasma membrane binding. We found that the K-Ras ancho...

journal_title：Cell

authors： Zhou Y,Prakash P,Liang H,Cho KJ,Gorfe AA,Hancock JF

更新日期：2017-01-12 00:00:00

abstract：:The activation of the tumor suppressor p53 facilitates the cellular response to genotoxic stress; however, the p53 response can only be executed if its interaction with its inhibitor Mdm2 is abolished. There have been conflicting reports on the question of whether p53 posttranslational modifications, such as phosphory...

journal_title：Cell

authors： Tang Y,Zhao W,Chen Y,Zhao Y,Gu W

更新日期：2008-05-16 00:00:00

abstract：:Most inducible transcriptional programs consist of primary and secondary response genes (PRGs and SRGs) that differ in their kinetics of expression and in their requirements for new protein synthesis and chromatin remodeling. Here we show that many PRGs, in contrast to SRGs, have preassembled RNA polymerase II (Pol II...

journal_title：Cell

authors： Hargreaves DC,Horng T,Medzhitov R

更新日期：2009-07-10 00:00:00

abstract：:The brlA gene of A. nidulans mediates the developmental switch from the indeterminate, apical growth pattern of vegetative cells to the budding growth pattern of conidiophores. brlA encodes a 432 amino acid polypeptide containing two directly repeated motifs resembling the Zn(II) coordination sites first recognized in...

journal_title：Cell

authors： Adams TH,Boylan MT,Timberlake WE

更新日期：1988-07-29 00:00:00

abstract：:The extracellular space (ECS) of the brain has an extremely complex spatial organization, which has defied conventional light microscopy. Consequently, despite a marked interest in the physiological roles of brain ECS, its structure and dynamics remain largely inaccessible for experimenters. We combined 3D-STED micros...

journal_title：Cell

authors： Tønnesen J,Inavalli VVGK,Nägerl UV

更新日期：2018-02-22 00:00:00

abstract：:NRK fibroblasts exposed to transforming growth factor-beta (TGF-beta) show increased binding of radiolabeled epidermal growth factor (EGF) relative to untreated cells. The binding of another growth factor, rat insulin-like growth factor-II, is unaffected. The increase in EGF binding induced by TGF-beta is not due to i...

journal_title：Cell

authors： Assoian RK,Frolik CA,Roberts AB,Miller DM,Sporn MB

更新日期：1984-01-01 00:00:00

abstract：:Vascular endothelial growth factor (VEGF), a major regulator of angiogenesis, binds to two receptor tyrosine kinases, KDR/Flk-1 and Flt-1. We now describe the purification and the expression cloning from tumor cells of a third VEGF receptor, one that binds VEGF165 but not VEGF121. This isoform-specific VEGF receptor (...

journal_title：Cell

authors： Soker S,Takashima S,Miao HQ,Neufeld G,Klagsbrun M

更新日期：1998-03-20 00:00:00

abstract：:We have localized ten oxi3- mutations in the first, al1, intron of the coxl gene. All are splicing deficient, being unable to excise the intron. Complementation experiments disclose several domains in the intron al1: the 5'-proximal and 3'-proximal domains harbor cis-dominant mutations, while trans-recessive ones are ...

journal_title：Cell

authors： Carignani G,Groudinsky O,Frezza D,Schiavon E,Bergantino E,Slonimski PP

更新日期：1983-12-01 00:00:00

abstract：:Cell lines stably transfected with metal inducible, MT-fos chimeric genes were used to study the ability of the c-fos gene product, Fos, to act as a transcriptional trans-activator. In 3T3MTfos cells, induction of Fos expression led to specific trans-activation of an AP-1 responsive reporter gene. Induction of Fos exp...

journal_title：Cell

authors： Chiu R,Boyle WJ,Meek J,Smeal T,Hunter T,Karin M

更新日期：1988-08-12 00:00:00

abstract：:Mouse plasmacytoma (MOPC) 460 cells contain two chromatographic forms of RNA polymerase III (IIIA and IIIB) in addition to the major class I and II RNA polymerases. Nuclei isolated from these cells actively synthesize RNA. Among the discrete transcription products observed are the 5S and 4.5S RNAs and additional low m...

journal_title：Cell

authors： Sklar VE,Roeder RG

更新日期：1977-03-01 00:00:00

abstract：:The biguanide drug metformin is widely prescribed to treat type 2 diabetes and metabolic syndrome, but its mode of action remains uncertain. Metformin also increases lifespan in Caenorhabditis elegans cocultured with Escherichia coli. This bacterium exerts complex nutritional and pathogenic effects on its nematode pre...

journal_title：Cell

authors： Cabreiro F,Au C,Leung KY,Vergara-Irigaray N,Cochemé HM,Noori T,Weinkove D,Schuster E,Greene ND,Gems D

更新日期：2013-03-28 00:00:00

abstract：:Human hepatitis B virus core protein expressed in E. coli assembles into two sizes of particle. We have determined their three-dimensional structures by electron cryomicroscopy and image processing. The large and small particles correspond to triangulation number T = 4 and T = 3 dimer clustered packings, containing 24...

journal_title：Cell

authors： Crowther RA,Kiselev NA,Böttcher B,Berriman JA,Borisova GP,Ose V,Pumpens P

更新日期：1994-06-17 00:00:00

abstract：:Embryonic stem cells (ESCs) repress the expression of exogenous proviruses and endogenous retroviruses (ERVs). Here, we systematically dissected the cellular factors involved in provirus repression in embryonic carcinomas (ECs) and ESCs by a genome-wide siRNA screen. Histone chaperones (Chaf1a/b), sumoylation factors ...

journal_title：Cell

authors： Yang BX,El Farran CA,Guo HC,Yu T,Fang HT,Wang HF,Schlesinger S,Seah YF,Goh GY,Neo SP,Li Y,Lorincz MC,Tergaonkar V,Lim TM,Chen L,Gunaratne J,Collins JJ,Goff SP,Daley GQ,Li H,Bard FA,Loh YH

更新日期：2015-09-24 00:00:00

abstract：:We have identified an essential gene, called FIP1, encoding a 327 amino acid protein interacting with yeast poly(A) polymerase (PAP1) in the two-hybrid assay. Recombinant FIP1 protein forms a 1:1 complex with PAP1 in vitro. At 37 degrees C, a thermosensitive allele of FIP1 shows a shortening of poly(A) tails and a dec...

journal_title：Cell

authors： Preker PJ,Lingner J,Minvielle-Sebastia L,Keller W

更新日期：1995-05-05 00:00:00

abstract：:DNA repair was measured in the dihydrofolate reductase gene in Chinese hamster ovary cells, amplified for the gene, by quantitating pyrimidine dimers with a specific UV-endonuclease. More than two thirds of the dimers had been removed from a 14.1 kb restriction fragment of the gene by 26 hr after irradiation (20 J/m2)...

journal_title：Cell

authors： Bohr VA,Smith CA,Okumoto DS,Hanawalt PC

更新日期：1985-02-01 00:00:00

abstract：:Sensory transduction in E. coli consists of two phases, excitation and adaptation, both of which involve the methyl-accepting chemotaxis proteins (MCPs). These molecules relay transmembrane signals and are reversibly methylated during adaptation of E. coli to environmental stimuli. Each MCP contains multiple sites of ...

journal_title：Cell

authors： Kehry MR,Dahlquist FW

更新日期：1982-07-01 00:00:00

abstract：:Many biological motor molecules move within cells using stepsizes predictable from their structures. Myosin VI, however, has much larger and more broadly distributed stepsizes than those predicted from its short lever arms. We explain the discrepancy by monitoring Qdots and gold nanoparticles attached to the myosin-VI...

journal_title：Cell

authors： Nishikawa S,Arimoto I,Ikezaki K,Sugawa M,Ueno H,Komori T,Iwane AH,Yanagida T

更新日期：2010-09-17 00:00:00

abstract：:Establishment and maintenance of the blood system relies on self-renewing hematopoietic stem cells (HSCs) that normally reside in small numbers in the bone marrow niche of adult mammals. This Review describes the developmental origins of HSCs and the molecular mechanisms that regulate lineage-specific differentiation....

journal_title：Cell

authors： Orkin SH,Zon LI

更新日期：2008-02-22 00:00:00

abstract：:The influence of MHC antigens on TCR gamma delta usage in CD8+ intraepithelial lymphocytes (IELs) was examined using a pan-reactive and V delta 4 region-specific MAb. While an average of 30% of IELs from the majority of mice of various MHC haplotypes were V delta 4+, a 2-fold or greater percentage of IELs from H-2k mi...

journal_title：Cell

authors： Lefrancois L,LeCorre R,Mayo J,Bluestone JA,Goodman T

更新日期：1990-10-19 00:00:00

abstract：:Genes are packaged into nucleosomal arrays, each nucleosome typically having two copies of histones H2A, H2B, H3, and H4. Histones have distinct posttranslational modifications, variant isoforms, and dynamics. Whether each histone copy within a nucleosome has distinct properties, particularly in relation to the direct...

journal_title：Cell

authors： Rhee HS,Bataille AR,Zhang L,Pugh BF

更新日期：2014-12-04 00:00:00

abstract：:We have compared the chromatin structure in the active and inactive states at loci encoding the major heat shock protein in Drosophila. DNAase I and micrococcal nuclease were used as probes of higher order organization and nucleosomal integrity. Such integrity is gauged here by the characteristic pattern of discrete D...

journal_title：Cell

authors： Wu C,Wong YC,Elgin SC

更新日期：1979-04-01 00:00:00

abstract：:Metabolic conditions affect the developmental tempo of animals. Developmental gene regulatory networks (GRNs) must therefore synchronize their dynamics with a variable timescale. We find that layered repression of genes couples GRN output with variable metabolism. When repressors of transcription or mRNA and protein s...

journal_title：Cell

authors： Cassidy JJ,Bernasek SM,Bakker R,Giri R,Peláez N,Eder B,Bobrowska A,Bagheri N,Nunes Amaral LA,Carthew RW

更新日期：2019-08-08 00:00:00

abstract：:A family of novel substrates was designed to enable the efficient accumulation of intermediates in site-specific recombination. Strategically placed nicks allow these "suicide substrates" to initiate the reaction but prevent its completion or reversal. Consequently, it has been possible to determine that lambda site-s...

journal_title：Cell

authors： Nunes-Düby SE,Matsumoto L,Landy A

更新日期：1987-08-28 00:00:00

abstract：:A 57 kd component of oligosaccharyl transferase, termed glycosylation site binding protein, specifically recognizes a photoaffinity probe containing the N-glycosylation site sequence Asn-Lys-Thr. It is present in the lumen of the ER (endoplasmic reticulum) and its release from this compartment results in a loss of N-g...

journal_title：Cell

authors： Geetha-Habib M,Noiva R,Kaplan HA,Lennarz WJ

更新日期：1988-09-23 00:00:00

abstract：:Monkey cell lines that constitutively synthesize 38.6 kd lac repressor protein and bear stably integrated chloramphenicol acetyl transferase (CAT) genes linked to a lac operator-containing SV40 early promoter-enhancer were generated. When grown in medium containing isopropyl beta-D-thiogalactoside (IPTG), these cells ...

journal_title：Cell

authors： Figge J,Wright C,Collins CJ,Roberts TM,Livingston DM

更新日期：1988-03-11 00:00:00

abstract：:We have examined the conformation of DNA cloned from the hypersensitive region 5' of the chicken adult beta-globin gene, in order to determine whether the unusual sensitivity to nucleases is related to altered secondary structure of the DNA. The region contains a large number of sites for methylation; we have studied ...

journal_title：Cell

authors： Nickol JM,Felsenfeld G

更新日期：1983-12-01 00:00:00