Rous sarcoma virus RNA stability requires an open reading frame in the gag gene and sequences downstream of the gag-pol junction.

abstract：:In the acellular slime mold Physarum polycephalum, the several hundred genes coding for rRNA are located on linear extrachromosomal DNA molecules of a discrete size, 60 kilobases. Each molecule contains two genes that are arranged in a palindromic fashion and separated by a central spacer region. We investigated how r...

journal_title：Molecular and cellular biology

authors： Ferris PJ,Vogt VM,Truitt CL

更新日期：1983-04-01 00:00:00

abstract：:Our analysis of rotund (rn) null mutations in Drosophila melanogaster revealed that deletion of the rn locus affects both spermatid and retinal differentiation. In the male reproductive system, the absence of RnRacGAP induced small testes, empty seminal vesicles, short testicular cysts, reduced amounts of interspermat...

journal_title：Molecular and cellular biology

authors： Bergeret E,Pignot-Paintrand I,Guichard A,Raymond K,Fauvarque MO,Cazemajor M,Griffin-Shea R

更新日期：2001-09-01 00:00:00

abstract：:We have previously shown by affinity chromatography that RAP30 and RAP74 are the mammalian proteins that have the highest affinity for RNA polymerase II. Here we show that RAP30 binds to RAP74 and that the RAP30-RAP74 complex (RAP30/74) is required for accurate initiation by RNA polymerase II. RAP30/74 is required for...

journal_title：Molecular and cellular biology

authors： Burton ZF,Killeen M,Sopta M,Ortolan LG,Greenblatt J

更新日期：1988-04-01 00:00:00

abstract：:A mutant of Saccharomyces cerevisiae defective in the S-adenosylmethionine (AdoMet)-dependent methyltransferase step of diphthamide biosynthesis was selected by intracellular expression of the F2 fragment of diphtheria toxin (DT) and shown to belong to complementation group DPH5. The DPH5 gene was cloned, sequenced, a...

journal_title：Molecular and cellular biology

authors： Mattheakis LC,Shen WH,Collier RJ

更新日期：1992-09-01 00:00:00

abstract：:TFIID is a multiprotein complex consisting of the TATA box binding protein and multiple tightly associated proteins (TAFIIs) that are required for transcription by selected activators. We previously reported cloning and partial characterization of human TAFII130 (hTAFII130). The central domain of hTAFII130 contains fo...

journal_title：Molecular and cellular biology

authors： Saluja D,Vassallo MF,Tanese N

更新日期：1998-10-01 00:00:00

abstract：:Progression through mitosis requires the inactivation of the protein kinase activity of the p34cdc2-cyclin complex by a mechanism involving the degradation of cyclin. We have examined the stability in Xenopus egg extracts of radiolabeled Xenopus or sea urchin B-type cyclins synthesized in reticulocyte lysates. Xenopus...

journal_title：Molecular and cellular biology

authors： van der Velden HM,Lohka MJ

更新日期：1993-03-01 00:00:00

abstract：:T-lymphocyte stimulation requires activation of several protein kinases, including the major phorbol ester receptor protein kinase C (PKC), ultimately leading to induction of lymphokines, such as interleukin-2 (IL-2). The revelant PKC isoforms which are involved in the activation cascades of nuclear transcription fact...

journal_title：Molecular and cellular biology

authors： Baier-Bitterlich G,Uberall F,Bauer B,Fresser F,Wachter H,Grunicke H,Utermann G,Altman A,Baier G

更新日期：1996-04-01 00:00:00

abstract：:In the budding yeast Saccharomyces cerevisiae, null alleles of several DNA repair and recombination genes confer defects in recombination that grow more severe with decreasing sequence length, indicating that they are required for short-sequence recombination (SSR). RAD1 and RAD10, which encode the subunits of the str...

journal_title：Molecular and cellular biology

authors： Manthey GM,Bailis AM

更新日期：2002-08-01 00:00:00

abstract：:We measured the content and metabolism of histone mRNA in mouse 3T6 fibroblasts during a serum-induced transition from the resting to growing state. The content of several histone H3 and H2b mRNAs was measured by an S1 nuclease procedure. All of these increase in parallel by a factor of about 50 during S phase. Howeve...

journal_title：Molecular and cellular biology

authors： DeLisle AJ,Graves RA,Marzluff WF,Johnson LF

更新日期：1983-11-01 00:00:00

abstract：:p53 not only functions as a transcription factor but also has a direct, apoptogenic role at the mitochondria. We have discovered that DNA damage-induced p53-Bcl2 binding is associated with decreased Bcl2-Bax interaction and increased apoptotic cell death in a mechanism regulated by Bcl2's flexible loop regulatory doma...

journal_title：Molecular and cellular biology

authors： Deng X,Gao F,Flagg T,Anderson J,May WS

更新日期：2006-06-01 00:00:00

abstract：:The 2 micron plasmid of Saccharomyces cerevisiae codes for a site-specific recombinase, the FLP protein, that catalyzes efficient recombination across two 599-base-pair (bp) inverted repeats of the plasmid DNA both in vivo and in vitro. We analyzed the interaction of the purified FLP protein with the target sequences ...

journal_title：Molecular and cellular biology

authors： Andrews BJ,McLeod M,Broach J,Sadowski PD

更新日期：1986-07-01 00:00:00

abstract：:In the yeast Saccharomyces cerevisiae, yeast RAS proteins are potent activators of adenylate cyclase. In the present work we measured the activity of adenylate cyclase in membranes from Saccharomyces cerevisiae which overexpress this enzyme. The response of the enzyme to added RAS2 proteins bound with various guanine ...

journal_title：Molecular and cellular biology

authors： Field J,Broek D,Kataoka T,Wigler M

更新日期：1987-06-01 00:00:00

abstract：:During Xenopus development, the synthesis of ribosomal proteins is regulated at the translational level. To identify the region of the ribosomal protein mRNAs responsible for their typical translational behavior, we constructed a fused gene in which the upstream sequences (promoter) and the 5' untranslated sequence (f...

journal_title：Molecular and cellular biology

authors： Mariottini P,Amaldi F

更新日期：1990-02-01 00:00:00

abstract：:Wnt signaling is critical to many aspects of development, and aberrant activation of the Wnt signaling pathway can cause cancer. Dishevelled (Dvl) protein plays a central role in this pathway by transducing the signal from the Wnt receptor complex to the beta-catenin destruction complex. Dvl also plays a pivotal role ...

journal_title：Molecular and cellular biology

authors： Cong F,Schweizer L,Varmus H

更新日期：2004-03-01 00:00:00

abstract：:Metallothioneins (MTs) are short, cysteine-rich proteins for heavy metal homeostasis and detoxification; they bind a variety of heavy metals and also act as radical scavengers. Transcription of mammalian MT genes is activated by heavy metal load via the metal-responsive transcription factor 1 (MTF-1), an essential zin...

journal_title：Molecular and cellular biology

authors： Zhang B,Egli D,Georgiev O,Schaffner W

更新日期：2001-07-01 00:00:00

abstract：:In yeast, the pheromone alpha-factor acts as an antiproliferative factor that induces G1 arrest and cellular differentiation. Previous data have indicated that Far1, a factor dedicated to pheromone-induced cell cycle arrest, is under positive and negative posttranslational regulation. Phosphorylation by the pheromone-...

journal_title：Molecular and cellular biology

authors： Gartner A,Jovanović A,Jeoung DI,Bourlat S,Cross FR,Ammerer G

更新日期：1998-07-01 00:00:00

abstract：:The retinoblastoma protein (Rb) regulates both the cell cycle and tissue-specific transcription, by modulating the activity of factors that associate with its A-B and C pockets. In skeletal muscle, Rb has been reported to regulate irreversible cell cycle exit and muscle-specific transcription. To identify factors inte...

journal_title：Molecular and cellular biology

authors： MacLellan WR,Xiao G,Abdellatif M,Schneider MD

更新日期：2000-12-01 00:00:00

abstract：:Entry into mitosis depends upon activation of the dual-specificity phosphatase Cdc25C, which dephosphorylates and activates the cyclin B-Cdc2 complex. Previous work has shown that the Xenopus polo-like kinase Plx1 can phosphorylate and activate Cdc25C in vitro. In the work presented here, we demonstrate that Plx1 is a...

journal_title：Molecular and cellular biology

authors： Qian YW,Erikson E,Li C,Maller JL

更新日期：1998-07-01 00:00:00

abstract：:To analyze determinants within the Na,K-ATPase alpha subunit that contribute to differential ouabain sensitivity, we constructed and expressed a panel of chimeric cDNA molecules between ouabain-resistant and ouabain-sensitive alpha subunit cDNAs. When introduced into ouabain-sensitive monkey CV-1 cells, ouabain-resist...

journal_title：Molecular and cellular biology

authors： Emanuel JR,Graw S,Housman D,Levenson R

更新日期：1989-09-01 00:00:00

abstract：:pp60c-src was localized in the cerebellum of developing chicken embryos by immunoperoxidase staining with antisera raised against bacterially expressed pp60v-src. Immunoreactivity (IR) appeared in the cerebellum of the chicken embryos at the time of neuronal differentiation. pp60c-src IR was detected in regions of the...

journal_title：Molecular and cellular biology

authors： Fults DW,Towle AC,Lauder JM,Maness PF

更新日期：1985-01-01 00:00:00

abstract：:To explore the diversity in the mechanisms of basal transcription by RNA polymerase II, we have employed a novel biochemical approach that involves perturbation of the transcription reaction with exogenously added TFIIB or TATA box-binding protein (TBP). Under these conditions, we observe promoter-selective inhibition...

journal_title：Molecular and cellular biology

authors： George CP,Lira-DeVito LM,Wampler SL,Kadonaga JT

更新日期：1995-02-01 00:00:00

abstract：:We analyzed the impact of a GAGA element on a transgenic promoter in Drosophila melanogaster that was activated by proteins composed of the Tet(on) DNA binding domain and either the heat shock factor (HSF) activation domain or a potent subdomain of VP16. Permanganate footprinting was used to monitor polymerase II (Pol...

journal_title：Molecular and cellular biology

authors： Wang YV,Tang H,Gilmour DS

更新日期：2005-05-01 00:00:00

abstract：:Mediator is a general coactivator complex connecting transcription activators and RNA polymerase II. Recent work has shown that the nuclear receptor-interacting MED1/TRAP220 subunit of Mediator is required for peroxisome proliferator-activated receptor gamma (PPARgamma)-stimulated adipogenesis of mouse embryonic fibro...

journal_title：Molecular and cellular biology

authors： Ge K,Cho YW,Guo H,Hong TB,Guermah M,Ito M,Yu H,Kalkum M,Roeder RG

更新日期：2008-02-01 00:00:00

abstract：:G(1)-specific transcription in the budding yeast Saccharomyces cerevisiae depends upon SBF and MBF. Whereas inactivation of SBF-regulated genes during the G(1)/S transition depends upon mitotic B-type cyclins, inactivation of MBF has been reported to involve multiple regulators, Nrm1 and Stb1. Nrm1 is a transcriptiona...

journal_title：Molecular and cellular biology

authors： de Bruin RA,Kalashnikova TI,Wittenberg C

更新日期：2008-11-01 00:00:00

abstract：:Gene targeting is a very powerful tool for studying mammalian development and physiology and for creating models of human diseases. In many instances, however, it is desirable to study different modifications of a target gene, but this is limited by the generally low frequency of homologous recombination in mammalian ...

journal_title：Molecular and cellular biology

authors： Cohen-Tannoudji M,Robine S,Choulika A,Pinto D,El Marjou F,Babinet C,Louvard D,Jaisser F

更新日期：1998-03-01 00:00:00

abstract：:We isolated a Drosophila fickleP (ficP) mutant with a shortened copulatory duration and reduced adult-stage life span. The reduced copulatory duration is ascribable to incomplete fusion of the left and right halves of the apodeme that holds the penis during copulation. ficP is an intronic mutation occurring in the Btk...

journal_title：Molecular and cellular biology

authors： Baba K,Takeshita A,Majima K,Ueda R,Kondo S,Juni N,Yamamoto D

更新日期：1999-06-01 00:00:00

abstract：:Homeodomain proteins are transcriptional regulatory factors that, in general, bind DNA with relatively low sequence specificity and affinity. One mechanism homeodomain proteins use to increase their biological specificity is through interactions with other DNA-binding proteins. We have examined how the yeast (Saccharo...

journal_title：Molecular and cellular biology

authors： Mead J,Zhong H,Acton TB,Vershon AK

更新日期：1996-05-01 00:00:00

abstract：:Three ras homologs have been identified in Drosophila melanogaster. Here we describe the tissue distribution of their transcripts as analyzed by in situ hybridization. The RNAs of the three genes show a similar distribution at every developmental stage examined. In embryos, the transcripts are uniformly distributed. I...

journal_title：Molecular and cellular biology

authors： Segal D,Shilo BZ

更新日期：1986-06-01 00:00:00

abstract：:Protein phosphatase 2A (PP2A) is a multimeric serine/threonine phosphatase that carries out multiple functions. Although numerous observations suggest that PP2A plays a major role in downregulation of the mitogen-activated protein (MAP) kinase pathway, the precise mechanisms are unknown. To clarify the role of PP2A in...

journal_title：Molecular and cellular biology

authors： Ugi S,Imamura T,Ricketts W,Olefsky JM

更新日期：2002-04-01 00:00:00

abstract：:Hox11 is a homeobox gene essential for spleen formation in mice, since atrophy of the anlage of a developing spleen occurs in early embryonic development in Hox11 null mice. HOX11 is also expressed in a subset of T-cell acute leukemias after specific chromosomal translocations. Since the protein has a homeodomain and ...

journal_title：Molecular and cellular biology

authors： Greene WK,Bahn S,Masson N,Rabbitts TH

更新日期：1998-12-01 00:00:00