Posttranslational translocation of influenza virus hemagglutinin across microsomal membranes.

abstract：:3'-end processing of nucleus-encoded mRNAs includes the addition of a poly(A) tail that is important for translation initiation. Since the vast majority of chloroplast mRNAs acquire their 3' termini by processing yet are not polyadenylated, we asked whether 3' end maturation plays a role in chloroplast translation. A ...

journal_title：Molecular and cellular biology

authors： Rott R,Levy H,Drager RG,Stern DB,Schuster G

更新日期：1998-08-01 00:00:00

abstract：:CPC1 is the transcriptional activator of amino acid biosynthetic genes of Neurospora crassa. CPC1 function in vivo was abolished upon deletion of segments of cpc-1 corresponding to the presumed transcription activation domain, the DNA-binding and dimerization domains, or a 52-residue connector segment of CPC1. A trunc...

journal_title：Molecular and cellular biology

authors： Paluh JL,Yanofsky C

更新日期：1991-02-01 00:00:00

abstract：:The cyclin-dependent kinase (CDK)-activating kinase (CAK) is involved in cell cycle control, transcription, and DNA repair (E. A. Nigg, Curr. Opin. Cell. Biol. 8:312-317, 1996). However, the mechanisms of how CAK is integrated into these signaling pathways remain unknown. We previously demonstrated that abrogation of ...

journal_title：Molecular and cellular biology

authors： Wu L,Chen P,Shum CH,Chen C,Barsky LW,Weinberg KI,Jong A,Triche TJ

更新日期：2001-01-01 00:00:00

abstract：:LBP-1 is a cellular protein which binds strongly to sequences around the human immunodeficiency virus type 1 (HIV-1) initiation site and weakly over the TATA box. We have previously shown that LBP-1 represses HIV-1 transcription by inhibiting the binding of TFIID to the TATA box. Four similar but distinct cDNAs encodi...

journal_title：Molecular and cellular biology

authors： Yoon JB,Li G,Roeder RG

更新日期：1994-03-01 00:00:00

abstract：:Members of the Myc family of proteins share a number of protein motifs that are found in regulators of gene transcription. Conserved stretches of amino acids found in the N-terminal transcriptional activation domain of c-Myc are required for cotransforming activity. Most of the Myc proteins contain the basic helix-loo...

journal_title：Molecular and cellular biology

authors： Barrett J,Birrer MJ,Kato GJ,Dosaka-Akita H,Dang CV

更新日期：1992-07-01 00:00:00

abstract：:The RNA polymerase III transcription initiation factor TFIIIB contains the TATA-box-binding protein (TBP) and polymerase III-specific TBP-associated factors (TAFs). Previous studies have shown that DNA oligonucleotides containing the consensus TATA-box sequence inhibit polymerase III transcription, implying that the D...

journal_title：Molecular and cellular biology

authors： McBryant SJ,Meier E,Leresche A,Sharp SJ,Wolf VJ,Gottesfeld JM

更新日期：1996-09-01 00:00:00

abstract：:USF is a family of basic helix-loop transcriptional factors that recognizes DNA-binding sites similar to those of the Myc oncoproteins. Here, various functional domains in the mouse USF2 protein were identified and characterized. Indirect immunofluorescence studies with transiently transfected cells revealed that both...

journal_title：Molecular and cellular biology

authors： Luo X,Sawadogo M

更新日期：1996-04-01 00:00:00

abstract：:Cells of the human embryonal carcinoma line NEC14 proliferate as densely packed clusters consisting of small, polygonal stem cells and do not express a detectable level of fibronectin (FN). Upon induction of differentiation by treatment with N,N'-hexamethylene bisacetamide (HMBA), the level of FN mRNA increased steepl...

journal_title：Molecular and cellular biology

authors： Suzuki M,Oda E,Nakajima T,Sekiya S,Oda K

更新日期：1998-05-01 00:00:00

abstract：:The Saccharomyces cerevisiae pheromone a-factor is produced by a cells and interacts with alpha cells to cause cell cycle arrest and other physiological responses associated with mating. Two a-factor structural genes, MFA1 and MFA2, have been previously cloned with synthetic probes based on the a-factor amino acid seq...

journal_title：Molecular and cellular biology

authors： Michaelis S,Herskowitz I

更新日期：1988-03-01 00:00:00

abstract：:MAP2K4 encodes a dual-specificity kinase (mitogen-activated protein kinase kinase 4, or MKK4) that is mutated in a variety of human malignancies, but the biochemical properties of the mutant kinases and their roles in tumorigenesis have not been fully elucidated. Here we showed that 8 out of 11 cancer-associated MAP2K...

journal_title：Molecular and cellular biology

authors： Ahn YH,Yang Y,Gibbons DL,Creighton CJ,Yang F,Wistuba II,Lin W,Thilaganathan N,Alvarez CA,Roybal J,Goldsmith EJ,Tournier C,Kurie JM

更新日期：2011-11-01 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：:Recent studies showed that cyclophilin A (CypA) promotes NF-κB/p65 nuclear translocation, resulting in enhanced NF-κB activity and altered expression of its target genes, such as the Sox9 transcriptional factor, which plays a critical role in chondrogenic differentiation and endochondral ossification. In this report, ...

journal_title：Molecular and cellular biology

authors： Guo M,Shen J,Kwak JH,Choi B,Lee M,Hu S,Zhang X,Ting K,Soo CB,Chiu RH

更新日期：2015-06-01 00:00:00

abstract：:SWI-SNF is an ATP-dependent chromatin remodeling complex that disrupts DNA-histone interactions. Several studies of SWI-SNF activity on mononucleosome substrates have suggested that remodeling leads to novel, accessible nucleosomes which persist in the absence of continuous ATP hydrolysis. In contrast, we have reporte...

journal_title：Molecular and cellular biology

authors： Jaskelioff M,Gavin IM,Peterson CL,Logie C

更新日期：2000-05-01 00:00:00

abstract：:In response to ionizing radiation (IR), the tumor suppressor p53 is stabilized and promotes either cell cycle arrest or apoptosis. Chk2 activated by IR contributes to this stabilization, possibly by direct phosphorylation. Like p53, Chk2 is mutated in patients with Li-Fraumeni syndrome. Since the ataxia telangiectasia...

journal_title：Molecular and cellular biology

authors： Hirao A,Cheung A,Duncan G,Girard PM,Elia AJ,Wakeham A,Okada H,Sarkissian T,Wong JA,Sakai T,De Stanchina E,Bristow RG,Suda T,Lowe SW,Jeggo PA,Elledge SJ,Mak TW

更新日期：2002-09-01 00:00:00

abstract：:The product of the retinoblastoma susceptibility gene, pRB, is a nuclear phosphoprotein that controls cell growth by binding to and suppressing the activities of transcription factors such as the E2F family. Transactivation activity is inhibited when E2F is bound to hypophosphorylated pRB and released when pRB is phos...

journal_title：Molecular and cellular biology

authors： Brown VD,Phillips RA,Gallie BL

更新日期：1999-05-01 00:00:00

abstract：:Mammalian ras genes substitute for the yeast RAS gene, and their products activate adenylate cyclase in yeast cells, although the direct target protein of mammalian ras p21s remains to be identified. ras p21s undergo posttranslational processing, including prenylation, proteolysis, methylation, and palmitoylation, at ...

journal_title：Molecular and cellular biology

authors： Horiuchi H,Kaibuchi K,Kawamura M,Matsuura Y,Suzuki N,Kuroda Y,Kataoka T,Takai Y

更新日期：1992-10-01 00:00:00

abstract：:In in vitro splicing reactions, influenza virus NS1 mRNA was not detectably spliced, but nonetheless very efficiently formed ATP-dependent 55S complexes containing the U1, U2, U4, U5, and U6 small nuclear ribonucleoproteins (snRNPs) (C. H. Agris, M. E. Nemeroff, and R. M. Krug, Mol. Cell. Biol. 9:259-267, 1989). We de...

journal_title：Molecular and cellular biology

authors： Nemeroff ME,Utans U,Krämer A,Krug RM

更新日期：1992-03-01 00:00:00

abstract：:Mitochondria are indispensable organelles implicated in multiple aspects of cellular processes, including tumorigenesis. Heat shock proteins play a critical regulatory role in accurately delivering the nucleus-encoded proteins through membrane-bound presequence translocase (Tim23 complex) machinery. Although altered e...

journal_title：Molecular and cellular biology

authors： Sinha D,Srivastava S,Krishna L,D'Silva P

更新日期：2014-05-01 00:00:00

abstract：:Keap1 regulates Nrf2 activity in response to xenobiotic and oxidative stresses. Nrf2 is an essential regulator of cytoprotective genes. Keap1-null mice are lethal by weaning age due to malnutrition caused by severe hyperkeratosis of the upper digestive tract. Analysis of Keap1::Nrf2 double mutant mice revealed that cu...

journal_title：Molecular and cellular biology

authors： Taguchi K,Maher JM,Suzuki T,Kawatani Y,Motohashi H,Yamamoto M

更新日期：2010-06-01 00:00:00

abstract：:rRNA transcription in Xenopus laevis terminates near a 7-base-pair (bp) conserved sequence (T3 box) located 200 bp upstream of the site of transcription initiation for the adjacent gene promoter. We present evidence here that a 12-bp element containing the T3 box is an essential part of the terminator. Using an oocyte...

journal_title：Molecular and cellular biology

authors： Labhart P,Reeder RH

更新日期：1987-05-01 00:00:00

abstract：:The uptake of various nucleosides by S49 mouse T-lymphoma cells and that by a single-step nucleoside transport-defective mutant thereof (AE1) were compared. Residual nucleoside entry into AE1 cells occurred via two routes, nonmediated permeation and saturable, non-concentrative transport with broad substrate specifici...

journal_title：Molecular and cellular biology

authors： Plagemann PG,Woffendin C

更新日期：1987-01-01 00:00:00

abstract：:Activation of peroxisome proliferator-activated receptor alpha (PPARalpha) leads to hepatocellular proliferation and liver carcinomas. The early events mediating these effects are unknown. A novel mechanism by which PPARalpha regulates gene expression and hepatocellular proliferation was uncovered. MicroRNA (miRNA) ex...

journal_title：Molecular and cellular biology

authors： Shah YM,Morimura K,Yang Q,Tanabe T,Takagi M,Gonzalez FJ

更新日期：2007-06-01 00:00:00

abstract：:Imprinting of the linked and oppositely expressed mouse H19 and Igf2 genes requires a 2-kb differentially methylated domain (DMD) that is located 2 kb upstream of H19. This element is postulated to function as a methylation-sensitive insulator. Here we test whether an additional sequence 5' of H19 is required for H19 ...

journal_title：Molecular and cellular biology

authors： Thorvaldsen JL,Mann MR,Nwoko O,Duran KL,Bartolomei MS

更新日期：2002-04-01 00:00:00

abstract：:A mutant has been isolated from the J558 (immunoglobulin A, lambda, anti-alpha 1 leads to 3 dextran) cell line which synthesizes a heavy-chain immunoglobulin twice the size of normal heavy chain. Secondary variants that synthesized heavy chains either 1.5 times as large as wild type or the same size as wild type were ...

journal_title：Molecular and cellular biology

authors： Matsuuchi L,Morrison SL

更新日期：1982-09-01 00:00:00

abstract：:The specific (6;9)(p23;q34) chromosomal translocation is associated with a defined subtype of acute nonlymphocytic leukemia (ANLL). The 9q34 breakpoint is located at the telomeric side of the c-abl gene. Through a combination of chromosome jumping, long-range mapping, and chromosome walking, the chromosome 9 breakpoin...

journal_title：Molecular and cellular biology

authors： von Lindern M,Poustka A,Lerach H,Grosveld G

更新日期：1990-08-01 00:00:00

abstract：:Clearance of apoptotic cells by phagocytic neighbors is crucial for normal development of multicellular organisms. However, how phagocytes discriminate between healthy and dying cells remains poorly understood. We focus on glial phagocytosis of apoptotic neurons during development of the Drosophila central nervous sys...

journal_title：Molecular and cellular biology

authors： Shklyar B,Levy-Adam F,Mishnaevski K,Kurant E

更新日期：2013-08-01 00:00:00

abstract：:We have isolated and subcloned three separate segments of human DNA which share strong sequence homology with a previously sequenced gene encoding a type I keratin, K14 (50 kilodaltons). Restriction endonuclease mapping has demonstrated that these three genes are tightly linked chromosomally, whereas the K14 gene appe...

journal_title：Molecular and cellular biology

authors： RayChaudhury A,Marchuk D,Lindhurst M,Fuchs E

更新日期：1986-02-01 00:00:00

abstract：:The Saccharomyces cerevisiae mutant ref2-1 (REF = RNA end formation) was originally identified by a genetic strategy predicted to detect decreases in the use of a CYC1 poly(A) site interposed within the intron of an ACT1-HIS4 fusion reporter gene. Direct RNA analysis now proves this effect and also demonstrates the tr...

journal_title：Molecular and cellular biology

authors： Russnak R,Nehrke KW,Platt T

更新日期：1995-03-01 00:00:00

abstract：:Polyamines critically regulate all mammalian cell growth and proliferation by mechanisms such as the repression of growth-inhibitory proteins, including JunD. Decreasing the levels of cellular polyamines stabilizes JunD mRNA without affecting its transcription, but the exact mechanism whereby polyamines regulate JunD ...

journal_title：Molecular and cellular biology

authors： Zou T,Rao JN,Liu L,Xiao L,Yu TX,Jiang P,Gorospe M,Wang JY

更新日期：2010-11-01 00:00:00

abstract：:BCS1, a component of the inner membrane of mitochondria, belongs to the group of proteins with internal, noncleavable import signals. Import and intramitochondrial sorting of BCS1 are encoded in the N-terminal 126 amino acid residues. Three sequence elements were identified in this region, namely, the transmembrane do...

journal_title：Molecular and cellular biology

authors： Stan T,Brix J,Schneider-Mergener J,Pfanner N,Neupert W,Rapaport D

更新日期：2003-04-01 00:00:00