The poly(A) tail inhibits the assembly of a 3'-to-5' exonuclease in an in vitro RNA stability system.

abstract：:In Saccharomyces cerevisiae (budding yeast), commitment to cell division in late G(1) is promoted by the G(1) cyclin Cln3 and its associated cyclin-dependent kinase, Cdc28. We show here that all known aspects of the function of Cln3 in G(1) phase, including control of cell size, pheromone sensitivity, cell cycle progr...

journal_title：Molecular and cellular biology

authors： Wijnen H,Landman A,Futcher B

更新日期：2002-06-01 00:00:00

abstract：:Nuclear extracts from chicken erythroid cells selectively stimulate transcription of the chicken histone H5 gene (and not of other chicken histone genes) after coinjection into frog oocytes. This effect is shown to involve an enhancerlike activity, and a region of the H5 gene sufficient to mediate trans-activation is ...

journal_title：Molecular and cellular biology

authors： Wigley PL,Wells JR

更新日期：1987-10-01 00:00:00

abstract：:The PKC1-associated mitogen-activated protein (MAP) kinase pathway of Saccharomyces cerevisiae regulates cell integrity by controlling the actin cytoskeleton and cell wall synthesis. Activation of PKC1 occurs via the GTPase RHO1 and the kinase pair PKH1 and PKH2. Here we report that YPK1 and YPK2, an essential pair of...

journal_title：Molecular and cellular biology

authors： Schmelzle T,Helliwell SB,Hall MN

更新日期：2002-03-01 00:00:00

abstract：:The homeo box gene even-skipped (eve) encodes a 376-amino-acid protein that binds with high affinity to sequences located near the 5' termini of the eve and en genes. The 5' en sites are A + T rich and contain copies of the 10-base-pair (bp) consensus sequence T-C-A-A-T-T-A-A-A-T. In contrast, the 5' eve sites are G +...

journal_title：Molecular and cellular biology

authors： Hoey T,Warrior R,Manak J,Levine M

更新日期：1988-11-01 00:00:00

abstract：:Oncostatin M is a polypeptide cytokine, produced by normal and malignant hematopoietic cells, that has several in vitro activities, including the ability to inhibit growth of cultured carcinoma cells. Here we present a structural and functional comparison of two oncostatin M-related proteins (Mr 36,000 and 32,000) sec...

journal_title：Molecular and cellular biology

authors： Linsley PS,Kallestad J,Ochs V,Neubauer M

更新日期：1990-05-01 00:00:00

abstract：:The response to amino acid starvation involves the global decrease of protein synthesis and an increase in the translation of some mRNAs that contain an internal ribosome entry site (IRES). It was previously shown that translation of the mRNA for the arginine/lysine amino acid transporter Cat-1 increases during amino ...

journal_title：Molecular and cellular biology

authors： Majumder M,Yaman I,Gaccioli F,Zeenko VV,Wang C,Caprara MG,Venema RC,Komar AA,Snider MD,Hatzoglou M

更新日期：2009-05-01 00:00:00

abstract：:The growth suppressor activities of the RB and p107 products are believed to be mediated by the reversible binding of a heterogeneous family of cellular proteins to a conserved T/E1A pocket domain that is present within both proteins. To study the functional role of these interactions, we examined the properties of ce...

journal_title：Molecular and cellular biology

authors： Kim YW,Otterson GA,Kratzke RA,Coxon AB,Kaye FJ

更新日期：1994-11-01 00:00:00

abstract：:There are three mechanisms of transcriptional repression in eukaryotes. The first is quenching, whereby repressors and activators co-occupy closely linked sites and then the repressor inhibits adjacent activators. The second is direct repression, in which repressors block the function of the core transcription complex...

journal_title：Molecular and cellular biology

authors： Nibu Y,Senger K,Levine M

更新日期：2003-06-01 00:00:00

abstract：:The slow/cardiac troponin C (cTnC) gene is expressed in three distinct striated muscle lineages: cardiac myocytes, embryonic fast skeletal myotubes, and adult slow skeletal myocytes. We have reported previously that cTnC gene expression in cardiac muscle is regulated by a cardiac-specific promoter/enhancer located in ...

journal_title：Molecular and cellular biology

authors： Parmacek MS,Ip HS,Jung F,Shen T,Martin JF,Vora AJ,Olson EN,Leiden JM

更新日期：1994-03-01 00:00:00

abstract：:The mechanism for transcriptional silencing of pericentric heterochromatin is conserved from fission yeast to mammals. Silenced genome regions are marked by epigenetic methylation of histone H3, which serves as a binding site for structural heterochromatin proteins. In the fission yeast Schizosaccharomyces pombe, the ...

journal_title：Molecular and cellular biology

authors： Cheutin T,Gorski SA,May KM,Singh PB,Misteli T

更新日期：2004-04-01 00:00:00

abstract：:Gene activation requires alteration of chromatin structure to facilitate active transcription complex formation at a gene promoter. Nucleosome remodeling complexes and histone modifying complexes each play unique and interdependent roles in bringing about these changes. The role of distant enhancers in these structura...

journal_title：Molecular and cellular biology

authors： Kim A,Dean A

更新日期：2003-11-01 00:00:00

abstract：:The natriuretic peptide receptors are three homologous cell surface proteins, each with a single transmembrane domain. The atrial natriuretic peptide receptor type A (ANPRA) and the homologous receptor type B (ANPRB) are both membrane guanylyl cyclases that synthesize cyclic GMP as an intracellular second messenger. T...

journal_title：Molecular and cellular biology

authors： Wilcox JN,Augustine A,Goeddel DV,Lowe DG

更新日期：1991-07-01 00:00:00

abstract：:The first processing step in the maturation of mouse precursor rRNA involves cleavage at nucleotide ca. +650, at the 5' border of a 200-nucleotide region that is conserved across mammals and contains the sequences that direct the processing. To identify the relevant sequence elements, we used rRNAs with small internal...

journal_title：Molecular and cellular biology

authors： Craig N,Kass S,Sollner-Webb B

更新日期：1991-01-01 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：:Structural maintenance of chromosomes (SMC) complexes and DNA topoisomerases are major determinants of chromosome structure and dynamics. The cohesin complex embraces sister chromatids throughout interphase, but during mitosis most cohesin is stripped from chromosome arms by early prophase, while the remaining cohesin...

journal_title：Molecular and cellular biology

authors： Tapia-Alveal C,Lin SJ,Yeoh A,Jabado OJ,O'Connell MJ

更新日期：2014-06-01 00:00:00

abstract：:The expression of CD154 (CD40 ligand) by activated T lymphocytes plays a central role in humoral and cellular immunity. The fundamental importance of this protein in mounting an immune response has made it an attractive target for immunomodulation. Several studies have demonstrated that CD154 expression is regulated a...

journal_title：Molecular and cellular biology

authors： Hamilton BJ,Genin A,Cron RQ,Rigby WF

更新日期：2003-01-01 00:00:00

abstract：:The Drosophila homeodomain protein Even-skipped (Eve) is a transcriptional repressor, and previous studies have suggested that it functions by interfering with the basal transcription machinery. Here we describe experiments indicating that the mechanism of Eve repression involves a direct interaction with the TATA bin...

journal_title：Molecular and cellular biology

authors： Li C,Manley JL

更新日期：1998-07-01 00:00:00

abstract：:Neighboring genes encoding the mouse sex-limited protein (Slp) and fourth component of complement (C4) show extensive homology. In contrast to C4, however, Slp is regulated by androgen. One region of the Slp gene capable of hormonal response following transfection was located about 2 kilobases upstream of the transcri...

journal_title：Molecular and cellular biology

authors： Loreni F,Stavenhagen J,Kalff M,Robins DM

更新日期：1988-06-01 00:00:00

abstract：:Little is known about the posttranslational control of the cyclin-dependent protein kinase (CDK) inhibitor p21. We describe here a transient phosphorylation of p21 in the G2/M phase. G2/M-phosphorylated p21 is short-lived relative to hypophosphorylated p21. p21 becomes nuclear during S phase, prior to its phosphorylat...

journal_title：Molecular and cellular biology

authors： Dash BC,El-Deiry WS

更新日期：2005-04-01 00:00:00

abstract：:Notch signaling requires a series of proteolytic cleavage events to release the Notch intracellular domain (NICD) that functions directly in signal transduction. The Notch receptor is locked down in a protease-resistant state by a negative regulatory region (NRR) that protects an ADAM (a disintegrin and metalloproteas...

journal_title：Molecular and cellular biology

authors： Bozkulak EC,Weinmaster G

更新日期：2009-11-01 00:00:00

abstract：:Precise regulation of cellular proliferation, differentiation, and senescence results in the continuous renewal of the intestinal epithelium with maintenance of a highly ordered tissue architecture. Here we show that an intestine-specific homeobox gene, Cdx2, is a transcription factor that regulates both proliferation...

journal_title：Molecular and cellular biology

authors： Suh E,Traber PG

更新日期：1996-02-01 00:00:00

abstract：:Endonuclease G (endo G) is one of the most abundant nucleases in eukaryotic cells. It is encoded in the nucleus and imported to the mitochondrial intermembrane space. This nuclease is active on single- and double-stranded DNA. We genetically disrupted the endo G gene in mice without disturbing a conserved, overlapping...

journal_title：Molecular and cellular biology

authors： Irvine RA,Adachi N,Shibata DK,Cassell GD,Yu K,Karanjawala ZE,Hsieh CL,Lieber MR

更新日期：2005-01-01 00:00:00

abstract：:The gene encoding the 180-kDa DNA strand transfer protein beta from the yeast Saccharomyces cerevisiae was identified and sequenced. This gene, DST2 (DNA strand transferase 2), was located on chromosome VII. dst2 gene disruption mutants exhibited temperature-sensitive sporulation and a 50% longer generation time durin...

journal_title：Molecular and cellular biology

authors： Dykstra CC,Kitada K,Clark AB,Hamatake RK,Sugino A

更新日期：1991-05-01 00:00:00

abstract：:Protein 4.1G is a membrane skeletal protein found in specific subcellular structures in myelinated Schwann cells and seminiferous tubules. Here, we show that in the mouse sciatic nerve, protein 4.1G colocalized at Schmidt-Lanterman incisures (SLI) and the paranodes with a member of the membrane-associated guanylate ki...

journal_title：Molecular and cellular biology

authors： Terada N,Saitoh Y,Ohno N,Komada M,Saitoh S,Peles E,Ohno S

更新日期：2012-01-01 00:00:00

abstract：:The transcriptional regulating protein of 132 kDa (TReP-132) has been identified in steroidogenic tissues, where it acts as a coactivator of steroidogenic factor 1 (SF-1). We show here that TReP-132 plays a role in the control of cell proliferation. In human HeLa cells, TReP-132 knockdown by using small interfering RN...

journal_title：Molecular and cellular biology

authors： Gizard F,Robillard R,Barbier O,Quatannens B,Faucompré A,Révillion F,Peyrat JP,Staels B,Hum DW

更新日期：2005-06-01 00:00:00

abstract：:Gamma interferon activation factor (GAF) rapidly induces transcriptional activation of gamma interferon (IFN-gamma)-responsive genes. Conversion of the GAF from a latent cytoplasmic to an activated, DNA-binding form is an immediate step in the cellular response to IFN-gamma. The amount of IFN-gamma-activated GAF, meas...

journal_title：Molecular and cellular biology

authors： Eilers A,Seegert D,Schindler C,Baccarini M,Decker T

更新日期：1993-06-01 00:00:00

abstract：:Transcriptional insulators are cis regulatory elements that organize chromatin into independently regulated domains. At the imprinted murine Igf2/H19 locus, the H19-ICR insulator prevents the activation of the Igf2 promoter on the maternal allele by enhancers that activate H19 on the same chromosome. Given the well-de...

journal_title：Molecular and cellular biology

authors： Singh V,Srivastava M

更新日期：2008-06-01 00:00:00

abstract：:Eight strains of Chinese hamster ovary (CHO) cells having an assembly-defective beta-tubulin were found among revertants of strain Cmd 4, a mutant with a conditional lethal mutation in a beta-tubulin gene (F. Cabral, M. E. Sobel, and M. M. Gottesman, Cell 20:29-36, 1980). The altered beta-tubulins in these strains hav...

journal_title：Molecular and cellular biology

authors： Boggs B,Cabral F

更新日期：1987-08-01 00:00:00

abstract：:The human epidermal growth factor receptor (EGFR) promoter is activated by both wild-type and tumor-derived mutant p53. In this communication, we demonstrate that EGFR promoter sequence requirements for transactivation by wild-type and mutant p53 are different. Transient-expression assays with EGFR promoter deletions ...

journal_title：Molecular and cellular biology

authors： Ludes-Meyers JH,Subler MA,Shivakumar CV,Munoz RM,Jiang P,Bigger JE,Brown DR,Deb SP,Deb S

更新日期：1996-11-01 00:00:00

abstract：:The Moloney murine sarcoma virus long terminal repeat (LTR) harbors two distinct positive activators of transcription, namely, a distal signal and an enhancer. In this report we demonstrate that infection by herpes simplex virus (HSV) can markedly affect the utilization of these two Moloney murine sarcoma virus transc...

journal_title：Molecular and cellular biology

authors： Graves BJ,Eisenberg SP,Coen DM,McKnight SL

更新日期：1985-08-01 00:00:00