Ubiquitous and tenacious methylation of the CpG site in codon 248 of the p53 gene may explain its frequent appearance as a mutational hot spot in human cancer.

abstract：:The DNA damage checkpoint is tightly controlled. After its activation, the checkpoint machinery is inactivated once lesions are repaired or undergoes adaptation if the DNA damage is unable to be repaired. Protein acetylation has been shown to play an important role in DNA damage checkpoint activation. However, the rol...

journal_title：Molecular and cellular biology

authors： Tao R,Xue H,Zhang J,Liu J,Deng H,Chen YG

更新日期：2013-11-01 00:00:00

abstract：:The pathway of vesicular stomatitis virus N protein from synthesis to assembly into capsids was studied by use of detergent extraction of infected HeLa cells together with protein cross-linking. One half of the newly synthesized N protein was extracted with the soluble cell proteins and, when cross-linked, never forme...

journal_title：Molecular and cellular biology

authors： Chatterjee PK,Cervera MM,Penman S

更新日期：1984-10-01 00:00:00

abstract：:zfh-1 is a member of the zfh family of proteins, which all contain zinc finger and homeodomains. The roles and mechanisms of action of most family members are still unclear. However, we have shown previously that another member of the family, the vertebrate ZEB protein, is a transcriptional repressor that binds E box ...

journal_title：Molecular and cellular biology

authors： Postigo AA,Ward E,Skeath JB,Dean DC

更新日期：1999-10-01 00:00:00

abstract：:In the early phase of bone damage, low concentrations of the cytokine tumor necrosis factor alpha (TNF-α) favor osteoblast differentiation. In contrast, chronic high doses of the same cytokine contribute to bone loss, demonstrating opposite effects depending on its concentration and on the time of exposure. In the bon...

journal_title：Molecular and cellular biology

authors： Daniele S,Natali L,Giacomelli C,Campiglia P,Novellino E,Martini C,Trincavelli ML

更新日期：2017-03-31 00:00:00

abstract：:The glucose-activated transcription factor carbohydrate response element binding protein (ChREBP) induces the expression of hepatic glycolytic and lipogenic genes. The farnesoid X receptor (FXR) is a nuclear bile acid receptor controlling bile acid, lipid, and glucose homeostasis. FXR negatively regulates hepatic glyc...

journal_title：Molecular and cellular biology

authors： Caron S,Huaman Samanez C,Dehondt H,Ploton M,Briand O,Lien F,Dorchies E,Dumont J,Postic C,Cariou B,Lefebvre P,Staels B

更新日期：2013-06-01 00:00:00

abstract：:Genetic and biochemical evidence suggests that the Ras protooncogene product regulates the activation of the Raf kinase pathway, leading to the proposal that Raf is a direct mitogenic effector of activated Ras. Here we report the use of a novel competition assay to measure in vitro the relative affinity of the c-Raf-1...

journal_title：Molecular and cellular biology

authors： Chuang E,Barnard D,Hettich L,Zhang XF,Avruch J,Marshall MS

更新日期：1994-08-01 00:00:00

abstract：:HMGN proteins promote chromatin unfolding, enhance access to nucleosomes, and modulate transcription from chromatin templates. It is not known whether they act indiscriminately as general modulators of transcription or whether they regulate specific gene expression. Here, we investigated the role of HMGN3, a recently ...

journal_title：Molecular and cellular biology

authors： West KL,Castellini MA,Duncan MK,Bustin M

更新日期：2004-05-01 00:00:00

abstract：:Double-stranded (ds) RNA-specific adenosine deaminase converts adenosine residues into inosines in dsRNA and edits transcripts of certain cellular and viral genes such as glutamate receptor (GluR) subunits and hepatitis delta antigen. The first member of this type of deaminase, DRADA1, has been recently cloned based o...

journal_title：Molecular and cellular biology

authors： Lai F,Chen CX,Carter KC,Nishikura K

更新日期：1997-05-01 00:00:00

abstract：:The niaD and niiA genes of Aspergillus nidulans, which code, respectively, for nitrate and nitrite reductases, are divergently transcribed, and their ATGs are separated by 1,200 bp. The genes are under the control of the positively acting NirA transcription factor, which mediates nitrate induction. The DNA binding dom...

journal_title：Molecular and cellular biology

authors： Punt PJ,Strauss J,Smit R,Kinghorn JR,van den Hondel CA,Scazzocchio C

更新日期：1995-10-01 00:00:00

abstract：:High-dose estrogen administration induces anemia in mammals. In chickens, estrogens stimulate outgrowth of bone marrow-derived erythroid progenitor cells and delay their maturation. This delay is associated with down-regulation of many erythroid cell-specific genes, including alpha- and beta-globin, band 3, band 4.1, ...

journal_title：Molecular and cellular biology

authors： Blobel GA,Sieff CA,Orkin SH

更新日期：1995-06-01 00:00:00

abstract：:Transcription factor Nrf2 (NF-E2-related factor 2) is essential for oxidative and electrophilic stress responses. While it has been well characterized that Nrf2 activity is tightly regulated at the protein level through proteasomal degradation via Keap1 (Kelch-like ECH-associated protein 1)-mediated ubiquitination, no...

journal_title：Molecular and cellular biology

authors： Suzuki T,Shibata T,Takaya K,Shiraishi K,Kohno T,Kunitoh H,Tsuta K,Furuta K,Goto K,Hosoda F,Sakamoto H,Motohashi H,Yamamoto M

更新日期：2013-06-01 00:00:00

abstract：:RAD52 and RAD9 are required for the repair of double-strand breaks (DSBs) induced by physical and chemical DNA-damaging agents in Saccharomyces cerevisiae. Analysis of EcoRI endonuclease expression in vivo revealed that, in contrast to DSBs containing damaged or modified termini, chromosomal DSBs retaining complementa...

journal_title：Molecular and cellular biology

authors： Lewis LK,Kirchner JM,Resnick MA

更新日期：1998-04-01 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：:Several eukaryotic transcription factors such as Sp1 or Oct1 contain glutamine-rich domains that mediate transcriptional activation. In human cells, promoter-proximally bound glutamine-rich activation domains activate transcription poorly in the absence of acidic type activators bound at distal enhancers, but synergis...

journal_title：Molecular and cellular biology

authors： Escher D,Bodmer-Glavas M,Barberis A,Schaffner W

更新日期：2000-04-01 00:00:00

abstract：:TFIIIC plays a key role in nucleating the assembly of the initiation factor TFIIIB on class III genes. We have characterized an essential gene, TFC8, encoding the 60-kDa polypeptide, tau60, present in affinity-purified TFIIIC. Hemagglutinin-tagged variants of tau60 were found to be part of TFIIIC-tDNA complexes and to...

journal_title：Molecular and cellular biology

authors： Deprez E,Arrebola R,Conesa C,Sentenac A

更新日期：1999-12-01 00:00:00

abstract：:Chemical carcinogenesis in mouse skin has been useful in delineating the molecular events that underlie squamous cell carcinoma progression. A late event in this progression, the epithelial-to-mesenchymal transition (EMT), is characterized by the loss of epithelial markers and the presence of mesenchymal markers. One ...

journal_title：Molecular and cellular biology

authors： Hulboy DL,Matrisian LM,Crawford HC

更新日期：2001-08-01 00:00:00

abstract：:The cytokine gamma interferon (IFN-gamma) and the calcitropic steroid hormone 1,25-dihydroxyvitamin D (1,25D) are activators of macrophage immune function. In sarcoidosis, tuberculosis, and several granulomatoses, IFN-gamma induces 1,25D synthesis by macrophages and inhibits 1,25D induction of 24-hydroxylase, a key en...

journal_title：Molecular and cellular biology

authors： Vidal M,Ramana CV,Dusso AS

更新日期：2002-04-01 00:00:00

abstract：:Using competition mobility shift, methylation interference, and proteolytic clipping DNA binding assays, we demonstrate that the protein binding the major histocompatibility complex A beta CCAAT box is indistinguishable from the protein previously named NF-Y, which binds the major histocompatibility complex E alpha CC...

journal_title：Molecular and cellular biology

authors： Kern MJ,Woodward JG

更新日期：1991-01-01 00:00:00

abstract：:CCAAT/enhancer binding protein beta (C/EBPbeta) is a widely expressed transcription factor whose activity is regulated by oncogenic Ha-RasV12 signaling. C/EBPbeta is essential for the development of mouse skin tumors containing Ras mutations and can cooperate with RasV12 to transform NIH 3T3 cells. Here we have invest...

journal_title：Molecular and cellular biology

authors： Shuman JD,Sebastian T,Kaldis P,Copeland TD,Zhu S,Smart RC,Johnson PF

更新日期：2004-09-01 00:00:00

abstract：:IMP dehydrogenase (IMPDH) is the rate-limiting enzyme in the de novo synthesis of guanine nucleotides. It is a target of therapeutically useful drugs and is implicated in the regulation of cell growth rate. In the yeast Saccharomyces cerevisiae, mutations in components of the RNA polymerase II (Pol II) transcription e...

journal_title：Molecular and cellular biology

authors： Shaw RJ,Reines D

更新日期：2000-10-01 00:00:00

abstract：:To interrogate endogenous p21(WAF1/CIP1) (p21) promoter activity under basal conditions and in response to various forms of stress, knock-in imaging reporter mice in which expression of firefly luciferase (FLuc) was placed under the control of the endogenous p21 promoter within the Cdkn1a gene locus were generated. Bi...

journal_title：Molecular and cellular biology

authors： Tinkum KL,Marpegan L,White LS,Sun J,Herzog ED,Piwnica-Worms D,Piwnica-Worms H

更新日期：2011-09-01 00:00:00

abstract：:The expression of Id1, a helix-loop-helix protein which inhibits the activity of basic helix-loop-helix transcription factors, is down-regulated during cellular differentiation and cell cycle withdrawal both in tissue culture models and in mouse embryos. In order to study the mechanism of control of Idl expression, we...

journal_title：Molecular and cellular biology

authors： Tournay O,Benezra R

更新日期：1996-05-01 00:00:00

abstract：:The levels of the A, B, and C subunits of protein phosphatase 2A in extracts from synchronized embryonic bovine tracheal cells were determined by immunoblotting with subunit-specific antibodies. A constant amount of each subunit was found in resting cells as well as in growing cells from all stages of the cell cycle. ...

journal_title：Molecular and cellular biology

authors： Ruediger R,Van Wart Hood JE,Mumby M,Walter G

更新日期：1991-08-01 00:00:00

abstract：:Infection of mouse fibroblasts by wild-type polyomavirus results in increased phosphorylation of ribosomal protein S6 (D.A. Talmage, J. Blenis, and T.L. Benjamin, Mol. Cell. Biol. 8:2309-2315, 1988). Here we identify pp70 S6 kinase (pp70S6K) as a target for signal transduction events leading from polyomavirus middle t...

journal_title：Molecular and cellular biology

authors： Dahl J,Freund R,Blenis J,Benjamin TL

更新日期：1996-06-01 00:00:00

abstract：:Mating-type genes resident in the silent cassette HML at the left arm of chromosome III are repressed by the action of four SIR gene products, most likely mediated through two cis-acting sites located on opposite sides of the locus. We showed that deletion of either of these two cis-acting sites from the chromosome di...

journal_title：Molecular and cellular biology

authors： Mahoney DJ,Broach JR

更新日期：1989-11-01 00:00:00

abstract：:Protein kinase activities were measured in Rous sarcoma virus-infected baby hamster kidney (BHK) cells that express v-src (BHK [v-src]) and compared with those of revertant and control BHK cells. We observed about a fivefold-higher tyrosine phosphorylating activity in BHK (v-src) cell extracts, which was due to src bu...

journal_title：Molecular and cellular biology

authors： Clinton GM,Roskoski R Jr

更新日期：1984-05-01 00:00:00

abstract：:Using an expression cloning assay, we have isolated a novel cDNA, referred to as rsp-1, which suppresses the v-Ras-transformed phenotype. When introduced into NIH 3T3 fibroblasts under the control of a metallothionein promoter, rsp-1 confers resistance to v-Ras, but not to v-Mos or v-Src, and inhibits growth of the ce...

journal_title：Molecular and cellular biology

authors： Cutler ML,Bassin RH,Zanoni L,Talbot N

更新日期：1992-09-01 00:00:00

abstract：:Approximately half of the introns in Drosophila melanogaster are too small to function in a vertebrate and often lack the pyrimidine tract associated with vertebrate 3' splice sites. Here, we report the splicing and spliceosome assembly properties of two such introns: one with a pyrimidine-poor 3' splice site and one ...

journal_title：Molecular and cellular biology

authors： Talerico M,Berget SM

更新日期：1994-05-01 00:00:00

abstract：:Chicken heart mesenchymal cells do not proliferate in medium of physiological composition containing plasma (S. Balk, Proc. Natl. Acad. Sci. USA 77:6606-6610, 1980). To understand the molecular events involved in cell quiescence and in the initiation of cell division under physiological conditions, we examined the dif...

journal_title：Molecular and cellular biology

authors： Bédard PA,Balk SD,Gunther HS,Morisi A,Erikson RL

更新日期：1987-04-01 00:00:00

abstract：:Neurite outgrowth is an essential process during neuronal differentiation as well as neuroregeneration. Thus, understanding the molecular and cellular control of neurite outgrowth will benefit patients with neurological diseases. We have previously shown that overexpression of the signaling adaptor protein SH2B1β prom...

journal_title：Molecular and cellular biology

authors： Chang YJ,Chen KW,Chen CJ,Lin MH,Sun YJ,Lee JL,Chiu IM,Chen L

更新日期：2014-03-01 00:00:00