A lysine substitution in the ATP-binding site of eucaryotic initiation factor 4A abrogates nucleotide-binding activity.

abstract：:Because of its central regulatory role, T-cell receptor (TCR) signal transduction is a common target of viruses. We report here the identification of a small signaling protein, ORF5, of the T-lymphotropic tumor virus herpesvirus saimiri (HVS). ORF5 is predicted to contain 89 to 91 amino acids with an amino-terminal my...

journal_title：Molecular and cellular biology

authors： Lee SH,Chung YH,Cho NH,Gwack Y,Feng P,Jung JU

更新日期：2004-06-01 00:00:00

abstract：:We isolated the gene for citrate synthase (citrate oxaloacetate lyase; EC 4.1.3.7) from Saccharomyces cerevisiae and ablated it by inserting the yeast LEU2 gene within its reading frame. This revealed a second, nonmitochondrial citrate synthase. Like the mitochondrial enzyme, this enzyme was sensitive to glucose repre...

journal_title：Molecular and cellular biology

authors： Rickey TM,Lewin AS

更新日期：1986-02-01 00:00:00

abstract：:We evaluated the extent to which muscle-specific genes display identical patterns of mRNA accumulation during human myogenesis. Cloned satellite cells isolated from adult human skeletal muscle were expanded in culture, and RNA was isolated from low- and high-confluence cells and from fusing cultures over a 15-day time...

journal_title：Molecular and cellular biology

authors： Gunning P,Hardeman E,Wade R,Ponte P,Bains W,Blau HM,Kedes L

更新日期：1987-11-01 00:00:00

abstract：:An ssu72 mutant of Saccharomyces cerevisiae was identified as an enhancer of a TFIIB defect (sua7-1) that confers both a cold-sensitive growth defect and a downstream shift in transcription start site selection. The ssu72-1 allele did not affect cold sensitivity but, in combination with sua7-1, created a heat-sensitiv...

journal_title：Molecular and cellular biology

authors： Sun ZW,Hampsey M

更新日期：1996-04-01 00:00:00

abstract：:M double-stranded RNA (MdsRNA) plasmid mutants were obtained by mutagenesis and screening of a diploid killer culture partially heat cured of the plasmid, so that a high proportion of the cells could be expected to have only on M plasmid. Mutants with neutral (nonkiller [K-], immune [R+]) or suicide (killer [K+], sens...

journal_title：Molecular and cellular biology

authors： Bussey H,Sacks W,Galley D,Saville D

更新日期：1982-04-01 00:00:00

abstract：:Although both osteoblasts and adipocytes have a common origin, i.e., mesenchymal cells, the molecular mechanisms that define the direction of two different lineages are presently unknown. In this study, we investigated the role of a transcription factor, CCAAT/enhancer binding protein beta (C/EBPbeta), and its isoform...

journal_title：Molecular and cellular biology

authors： Hata K,Nishimura R,Ueda M,Ikeda F,Matsubara T,Ichida F,Hisada K,Nokubi T,Yamaguchi A,Yoneda T

更新日期：2005-03-01 00:00:00

abstract：:Members of the cytokine receptor superfamily have structurally similar extracellular ligand-binding domains yet diverse cytoplasmic regions lacking any obvious catalytic domains. Many of these receptors form ligand-induced oligomers which are likely to participate in transmembrane signaling. A constitutively active (f...

journal_title：Molecular and cellular biology

authors： Watowich SS,Hilton DJ,Lodish HF

更新日期：1994-06-01 00:00:00

abstract：:The carboxyl-terminal domain (CTD) of RNA polymerase II (Pol II) can be phosphorylated at serine 2 (Ser-2) and serine 5 (Ser-5) of the CTD heptad repeat YSPTSPS, and this phosphorylation is important in coupling transcription to RNA processing, including 5' capping, splicing, and polyadenylation. The mammalian endogen...

journal_title：Molecular and cellular biology

authors： Cheng C,Sharp PA

更新日期：2003-03-01 00:00:00

abstract：:The interaction of the retinoblastoma susceptibility gene product (Rb)-related p107 protein with the E2F transcription factor in S-phase cells facilitates the formation of a multicomponent complex also containing cyclin A and the p33cdk2 kinase. We have created a series of p107 mutants to assess the ability of p107 to...

journal_title：Molecular and cellular biology

authors： Smith EJ,Nevins JR

更新日期：1995-01-01 00:00:00

abstract：:We employed a protein gel blotting procedure to search for nuclear proteins from rat pituitary cells that bind preferentially to the 5'-flanking region of the rat prolactin gene. By gel blots of chromatin proteins from GH3 rat pituitary tumor cells with a 32P-labeled prolactin genomic clone, we detected two major bind...

journal_title：Molecular and cellular biology

authors： White BA,Preston GM,Lufkin TC,Bancroft C

更新日期：1985-11-01 00:00:00

abstract：:In this study, we have constructed retroviral vectors expressing the interleukin-7 (IL-7) cDNA and have used infection with these retroviruses to express this cytokine endogenously in an IL-7-dependent pre-B-cell line. Infection with IL-7 retroviruses, but not with a control retrovirus, resulted in the conversion of t...

journal_title：Molecular and cellular biology

authors： Overell RW,Clark L,Lynch D,Jerzy R,Schmierer A,Weisser KE,Namen AE,Goodwin RG

更新日期：1991-03-01 00:00:00

abstract：:The tRNA methytransferase NSun2 promotes cell proliferation, but the molecular mechanism has not been elucidated. Here, we report that NSun2 regulates cyclin-dependent kinase 1 (CDK1) expression in a cell cycle-dependent manner. Knockdown of NSun2 decreased the CDK1 protein level, while overexpression of NSun2 elevate...

journal_title：Molecular and cellular biology

authors： Xing J,Yi J,Cai X,Tang H,Liu Z,Zhang X,Martindale JL,Yang X,Jiang B,Gorospe M,Wang W

更新日期：2015-12-01 00:00:00

abstract：:The mouse alpha-fetoprotein (AFP) gene is transcribed at high levels in the visceral endoderm of the yolk sac and fetal liver and at much lower rates in the endoderm of the fetal gut. Expression of the gene in vivo requires the presence of at least one of three enhancers which lie in its 5' flanking region. In this re...

journal_title：Molecular and cellular biology

authors： Millonig JH,Emerson JA,Levorse JM,Tilghman SM

更新日期：1995-07-01 00:00:00

abstract：:Epithelial-to-mesenchymal transition (EMT) is controlled by cellular signaling pathways that trigger the loss of cell-cell adhesion and lead to the restructuring of the cell cytoskeleton. Transforming growth factor β (TGF-β) has been shown to regulate cell plasticity through the phosphorylation of Par6 on a conserved ...

journal_title：Molecular and cellular biology

authors： Gunaratne A,Thai BL,Di Guglielmo GM

更新日期：2013-03-01 00:00:00

abstract：:The CDC8 gene, whose product is required for DNA replication in Saccharomyces cerevisiae, has been isolated on recombinant plasmids. The yeast vector YCp50 bearing the yeast ARS1, CEN4, and URA3 sequences, to provide for replication, stability, and selection, respectively, was used to prepare a recombinant plasmid poo...

journal_title：Molecular and cellular biology

authors： Kuo CL,Campbell JL

更新日期：1983-10-01 00:00:00

abstract：:By injecting the appropriately constructed plasmids into one-cell Xenopus embryos, we determined that the 3' region of the maternal Xenopus Eg2 mRNA confers instability on the chimeric mRNA transcribed from these plasmids. This instability, like that of the maternal Eg2 transcript, was abolished by treatment of the em...

journal_title：Molecular and cellular biology

authors： Bouvet P,Paris J,Phillippe M,Osborne HB

更新日期：1991-06-01 00:00:00

abstract：:We have previously characterized a cloned cDNA coding for a developmentally regulated mRNA in Drosophila melanogaster whose expression is selectively regulated at the translational level during oogenesis and embryogenesis. In this report we show that this translationally regulated mRNA (rpA1) codes for an acidic ribos...

journal_title：Molecular and cellular biology

authors： Kay MA,Jacobs-Lorena M

更新日期：1985-12-01 00:00:00

abstract：:Interferon (IFN) regulatory factor 1 (IRF-1) and IRF-2 were originally identified as transcription factors involved in the regulation of the IFN system. IRF-1 functions as a transcriptional activator, while IRF-2 represses IRF-1 function. More recently, evidence has been provided that IRF-1 and IRF-2 manifest antionco...

journal_title：Molecular and cellular biology

authors： Tanaka N,Kawakami T,Taniguchi T

更新日期：1993-08-01 00:00:00

abstract：:GATA-3 is a zinc finger transcription factor which is expressed in a highly restricted and strongly conserved tissue distribution pattern in vertebrate organisms, specifically, in a subset of hematopoietic cells, in cells within the central and peripheral nervous systems, in the kidney, and in placental trophoblasts. ...

journal_title：Molecular and cellular biology

authors： Yang Z,Gu L,Romeo PH,Bories D,Motohashi H,Yamamoto M,Engel JD

更新日期：1994-03-01 00:00:00

abstract：:Cell numbers are regulated by a balance among proliferation, growth arrest, and programmed cell death. A profound example of cell homeostasis, controlled throughout life, is the complex process of blood cell development, yet little is understood about the intracellular mechanisms that regulate blood cell growth arrest...

journal_title：Molecular and cellular biology

authors： Selvakumaran M,Lin HK,Sjin RT,Reed JC,Liebermann DA,Hoffman B

更新日期：1994-04-01 00:00:00

abstract：:An enzyme was isolated from a eucaryotic, Chlorella-like green alga infected with the virus PBCV-1 which exhibits type II restriction endonuclease activity. The enzyme recognized the sequence GATC and cleaved DNA 5' to the G. Methylation of deoxyadenosine in the GATC sequence inhibited enzyme activity. In vitro the en...

journal_title：Molecular and cellular biology

authors： Xia YN,Burbank DE,Uher L,Rabussay D,Van Etten JL

更新日期：1986-05-01 00:00:00

abstract：:Adiponectin is a secretory protein abundantly secreted from adipocytes. It assembles into a number of different higher-order complexes. Adipocytes maintain tight control over circulating plasma levels, suggesting the existence of a complex, highly regulated biosynthetic pathway. However, the critical mediators of adip...

journal_title：Molecular and cellular biology

authors： Wang ZV,Schraw TD,Kim JY,Khan T,Rajala MW,Follenzi A,Scherer PE

更新日期：2007-05-01 00:00:00

abstract：:Splicing of the Saccharomyces cerevisiae mitochondrial DNA group II intron aI2 depends on the intron-encoded 62-kDa reverse transcriptase-maturase protein (p62). In wild-type strains, p62 remains associated with the excised intron lariat RNA in ribonucleoprotein (RNP) particles that are essential for intron homing. St...

journal_title：Molecular and cellular biology

authors： Huang HR,Chao MY,Armstrong B,Wang Y,Lambowitz AM,Perlman PS

更新日期：2003-12-01 00:00:00

abstract：:The rapid nuclear translocation of signaling proteins upon stimulation is important for the regulation of de novo gene expression. We have studied the stimulated nuclear shuttling of c-Jun N-terminal kinase (JNK) and p38 mitogen-activated protein kinases (MAPKs) and found that they translocate into the nucleus in a Ra...

journal_title：Molecular and cellular biology

authors： Zehorai E,Seger R

更新日期：2014-01-01 00:00:00

abstract：:Biallelic expression of Igf2 is frequently seen in cancers because Igf2 functions as a survival factor. In many tumors the activation of Igf2 expression has been correlated with de novo methylation of the imprinted region. We have compared the intrinsic susceptibilities of the imprinted region of Igf2 and H19, other i...

journal_title：Molecular and cellular biology

authors： Biniszkiewicz D,Gribnau J,Ramsahoye B,Gaudet F,Eggan K,Humpherys D,Mastrangelo MA,Jun Z,Walter J,Jaenisch R

更新日期：2002-04-01 00:00:00

abstract：:The turnover of the colony-stimulating factor 1 receptor (CSF-1R), the c-fms proto-oncogene product, is accelerated by ligand binding or by activators of protein kinase C (PKC), such as the phorbol ester 12-O-tetradecanoylphorbol-13-acetate (TPA). The mechanisms of ligand- and TPA-induced downmodulation were shown to ...

journal_title：Molecular and cellular biology

authors： Downing JR,Roussel MF,Sherr CJ

更新日期：1989-07-01 00:00:00

abstract：:To investigate the transcriptional program underlying thyroid hormone (T3)-induced cell proliferation, cDNA microarrays were used to survey the temporal expression profiles of 4,400 genes. Of 358 responsive genes identified, 88% had not previously been reported to be transcriptionally or functionally modulated by T3. ...

journal_title：Molecular and cellular biology

authors： Miller LD,Park KS,Guo QM,Alkharouf NW,Malek RL,Lee NH,Liu ET,Cheng SY

更新日期：2001-10-01 00:00:00

abstract：:The high-affinity interleukin 2 receptor (IL-2R) consists of at least three distinct subunits: the IL-2R alpha chain (IL-2R alpha), beta chain (IL-2R beta), and gamma chain (IL-2R gamma). It has been shown that the cytoplasmic region of IL-2R beta, but not of IL-2R alpha, is essential for IL-2 signalling to the cell i...

journal_title：Molecular and cellular biology

authors： Kawahara A,Minami Y,Taniguchi T

更新日期：1994-08-01 00:00:00

abstract：:Anaplastic lymphoma kinase (ALK) is a receptor tyrosine kinase, initially discovered as part of the NPM-ALK fusion protein, resulting from the t(2;5) translocation that is frequently associated with anaplastic large-cell lymphomas. The native ALK protein is normally expressed in the developing and, at a weaker level, ...

journal_title：Molecular and cellular biology

authors： Mourali J,Bénard A,Lourenço FC,Monnet C,Greenland C,Moog-Lutz C,Racaud-Sultan C,Gonzalez-Dunia D,Vigny M,Mehlen P,Delsol G,Allouche M

更新日期：2006-08-01 00:00:00

abstract：:To investigate the mechanisms by which transcription factors invade nucleosomal DNA and replace histones at control elements, we have examined the response of the histone octamer to transcription factor binding in the presence of histone-binding proteins (i.e., nucleosome assembly factors). We found that yeast nucleos...

journal_title：Molecular and cellular biology

authors： Walter PP,Owen-Hughes TA,Côté J,Workman JL

更新日期：1995-11-01 00:00:00