Organization of a Chinese hamster ovary dihydrofolate reductase gene identified by phenotypic rescue.

abstract：:The gastrointestinal glutathione peroxidase (GI-GPx, GPx2) is a selenoprotein that was suggested to act as barrier against hydroperoxide absorption but has also been implicated in the control of inflammation and malignant growth. In CaCo-2 cells, GI-GPx was induced by t-butyl hydroquinone (tBHQ) and sulforaphane (SFN)...

journal_title：Molecular and cellular biology

authors： Banning A,Deubel S,Kluth D,Zhou Z,Brigelius-Flohé R

更新日期：2005-06-01 00:00:00

abstract：:In this report we described the cloning and characterization of ADA5, a gene identified by resistance to GAL4-VP16-mediated toxicity. ADA5 binds directly to the VP16 activation domain but not to a transcriptionally defective VP16 double point mutant. Double mutants with mutations in ada5 and other genes (ada2 or ada3)...

journal_title：Molecular and cellular biology

authors： Marcus GA,Horiuchi J,Silverman N,Guarente L

更新日期：1996-06-01 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：:A unique genetic selection was devised at the HIS4 locus to address the mechanism of translation initiation in Saccharomyces cerevisiae and to probe sequence requirements at the normal translational initiator region that might participate in ribosomal recognition of the AUG start codon. The first AUG codon at the 5' e...

journal_title：Molecular and cellular biology

authors： Donahue TF,Cigan AM

更新日期：1988-07-01 00:00:00

abstract：:The Ras pathway is critical for the development and function of T lymphocytes. The stimulation of this GTPase in T cells occurs primarily through the Vav1- and phospholipase C-gamma1-dependent activation of RasGRP1, a diacylglycerol-responsive Ras GDP/GTP exchange factor. Here, we show that a second exchange factor, R...

journal_title：Molecular and cellular biology

authors： Ruiz S,Santos E,Bustelo XR

更新日期：2007-12-01 00:00:00

abstract：:Many selectable mutants of somatic Chinese hamster cells have been described, but very few of the mutations have been mapped to specific chromosomes. We have utilized the microcell-mediated gene transfer technique to establish the location of three selectable genetic markers on chromosome 2 of Chinese hamster. Microce...

journal_title：Molecular and cellular biology

authors： Worton R,Duff C,Flintoff W

更新日期：1981-04-01 00:00:00

abstract：:Pax family transcription factors bind DNA through the paired domain. This domain, which is comprised of two helix-turn-helix motifs and a beta-hairpin structure, is a target of mutations in congenital disorders of mice and humans. Previously, we showed that Pax-5 (B-cell-specific activator protein) recruits proteins o...

journal_title：Molecular and cellular biology

authors： Wheat W,Fitzsimmons D,Lennox H,Krautkramer SR,Gentile LN,McIntosh LP,Hagman J

更新日期：1999-03-01 00:00:00

abstract：:The hepatocyte nuclear factor 3alpha (HNF-3alpha) and 3beta proteins have homology in the winged helix/fork head DNA binding domain and regulate cell-specific transcription in hepatocytes and in respiratory and intestinal epithelia. In this study, we describe two novel isoforms of the winged helix transcription factor...

journal_title：Molecular and cellular biology

authors： Ye H,Kelly TF,Samadani U,Lim L,Rubio S,Overdier DG,Roebuck KA,Costa RH

更新日期：1997-03-01 00:00:00

abstract：:The influence of transcription on homologous intrachromosomal recombination between direct and inverted repeats has been examined by using Chinese hamster ovary cells. Recombination was monitored between two integrated neomycin (neo) genes, including one silent allele and a second allele regulated by the inducible mou...

journal_title：Molecular and cellular biology

authors： Nickoloff JA

更新日期：1992-12-01 00:00:00

abstract：:alpha 2u-Globulin is a rat protein of as yet unknown function whose synthesis can be induced by glucocorticoids and several other hormones. Induction by glucocorticoids is a secondary response to the hormone: protein synthesis is required before the hormone can exert its stimulatory effect on alpha 2u-globulin transcr...

journal_title：Molecular and cellular biology

authors： Addison WR,Kurtz DT

更新日期：1986-07-01 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 hemagglutinin-neuraminidase (HN) protein of paramyxoviruses is likely in the unusual class of glycoproteins with the amino terminus cytoplasmic and the carboxy terminus lumenal or external to the cell. The properties of the membrane insertion of the HN protein of Newcastle disease virus, a prototype paramyxovirus,...

journal_title：Molecular and cellular biology

authors： Wilson C,Gilmore R,Morrison T

更新日期：1987-04-01 00:00:00

abstract：:We have developed a system to study mutations that affect xanthine-guanine phosphoribosyltransferase gene (gpt) expression in hypoxanthine-guanine phosphoribosyltransferase-deficient CHO cells that have been transformed by the plasmid vector pSV2gpt. One isolated transformant, designated AS52, carries a single copy of...

journal_title：Molecular and cellular biology

authors： Tindall KR,Stankowski LF Jr,Machanoff R,Hsie AW

更新日期：1984-07-01 00:00:00

abstract：:Elastin, an extracellular component of arteries, lung, and skin, is produced during fetal and neonatal growth. We reported previously that the cessation of elastin production is controlled by a posttranscriptional mechanism. Although tropoelastin pre-mRNA is transcribed at the same rate in neonates and adults, marked ...

journal_title：Molecular and cellular biology

authors： Zhang M,Pierce RA,Wachi H,Mecham RP,Parks WC

更新日期：1999-11-01 00:00:00

abstract：:The c-abl protooncogene is unusual in two respects; it has multiple, widely space N-terminal coding exons transcribed by different promoters, and it is the target of the translocations that form the Philadelphia chromosome found in cells of chronic myelogenous leukemia patients. To understand the organization of the g...

journal_title：Molecular and cellular biology

authors： Bernards A,Rubin CM,Westbrook CA,Paskind M,Baltimore D

更新日期：1987-09-01 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：:To define the role of Irx4, a member of the Iroquois family of homeobox transcription factors in mammalian heart development and function, we disrupted the murine Irx4 gene. Cardiac morphology in Irx4-deficient mice (designated Irx4(Delta ex2/Delta ex2)) was normal during embryogenesis and in early postnatal life. Adu...

journal_title：Molecular and cellular biology

authors： Bruneau BG,Bao ZZ,Fatkin D,Xavier-Neto J,Georgakopoulos D,Maguire CT,Berul CI,Kass DA,Kuroski-de Bold ML,de Bold AJ,Conner DA,Rosenthal N,Cepko CL,Seidman CE,Seidman JG

更新日期：2001-03-01 00:00:00

abstract：:p21Sdi1/WAF1/Cip1 inhibits cyclin-dependent protein kinases and cell proliferation. p21 is presumed to inhibit growth by preventing the phosphorylation of growth-regulatory proteins, including the retinoblastoma tumor suppressor protein (pRb). The ultimate effector(s) of p21 growth inhibition, however, is largely a ma...

journal_title：Molecular and cellular biology

authors： Dimri GP,Nakanishi M,Desprez PY,Smith JR,Campisi J

更新日期：1996-06-01 00:00:00

abstract：:Nucleosomes were reconstituted in vitro with several singly end-labeled restriction fragments derived from a cloned somatic-type 5S RNA gene of Xenopus laevis and purified nucleosome core particles from Xenopus cultured cells or chicken erythrocytes. Nucleosome locations were determined by digestion of the reconstitut...

journal_title：Molecular and cellular biology

authors： Gottesfeld JM

更新日期：1987-05-01 00:00:00

abstract：:Human MED26 was originally purified in the cofactor required for the Sp1 activation complex (CRSP) as a 70-kDa component named CRSP70. This polypeptide was specific to metazoans and the “small” form of the Mediator complex. We report here that a Drosophila melanogaster homologue of MED26 similarly interacts with other...

journal_title：Molecular and cellular biology

authors： Marr SK,Lis JT,Treisman JE,Marr MT 2nd

更新日期：2014-07-01 00:00:00

abstract：:The expression of chromosomally integrated transgenes usually varies greatly among independent transfectants. This variability in transgene expression has led to the definition of locus control regions (LCRs) as elements which render expression consistent. Analyses of expression in single cells revealed that the expre...

journal_title：Molecular and cellular biology

authors： Ronai D,Berru M,Shulman MJ

更新日期：1999-10-01 00:00:00

abstract：:Scaffold attachment factor A (SAF-A), also called heterogenous nuclear ribonuclear protein U (hnRNP-U), is phosphorylated on serine 59 by the DNA-dependent protein kinase (DNA-PK) in response to DNA damage. Since SAF-A, DNA-PK catalytic subunit (DNA-PKcs), and protein phosphatase 6 (PP6), which interacts with DNA-PKcs...

journal_title：Molecular and cellular biology

authors： Douglas P,Ye R,Morrice N,Britton S,Trinkle-Mulcahy L,Lees-Miller SP

更新日期：2015-08-01 00:00:00

abstract：:The Stunted protein (StuAp) is a member of a family of transcription factors that regulate fungal development and cell cycle progression. Regulated stuA gene expression is required for correct cell pattern formation during asexual reproduction (conidiation) and for initiation of the sexual reproductive cycle in Asperg...

journal_title：Molecular and cellular biology

authors： Wu J,Miller BL

更新日期：1997-10-01 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：:An ACG codon, which replaces the AUG codon used to initiate the synthesis of bacteriophage T7 gene 0.3 protein, was shown to function as a low-efficiency initiation codon in a wheat germ cell-free protein-synthesizing system. ...

journal_title：Molecular and cellular biology

authors： Anderson CW,Buzash-Pollert E

更新日期：1985-12-01 00:00:00

abstract：:Receptor-bound growth factors elicit intracellular signals that lead to the phosphorylation and activation of numerous intracellular kinases and transcription factors with consequent changes in patterns of gene expression. Several oncogene products are able to mimic these signals, resulting in cell transformation and ...

journal_title：Molecular and cellular biology

authors： Kortenjann M,Thomae O,Shaw PE

更新日期：1994-07-01 00:00:00

abstract：:During viral infection or cellular stress, cap-dependent translation is shut down. Proteins that are synthesized under these conditions use alternative mechanisms to initiate translation. This study demonstrates that at least two alternative translation initiation routes, internal ribosome entry site (IRES) initiation...

journal_title：Molecular and cellular biology

authors： Hertz MI,Landry DM,Willis AE,Luo G,Thompson SR

更新日期：2013-03-01 00:00:00

abstract：:The interleukin enhancer binding factors ILF2 (NF45) and ILF3 (NF90/NF110) have been implicated in various cellular pathways, such as transcription, microRNA (miRNA) processing, DNA repair, and translation, in mammalian cells. Using tandem affinity purification, we identified human NF45 and NF90 as components of precu...

journal_title：Molecular and cellular biology

authors： Wandrey F,Montellese C,Koos K,Badertscher L,Bammert L,Cook AG,Zemp I,Horvath P,Kutay U

更新日期：2015-10-01 00:00:00

abstract：:The GCN4 gene encodes a positive effector of amino acid biosynthetic genes in Saccharomyces cerevisiae. Genetic analysis has suggested that GCN4 is regulated by a hierarchy of interacting positive and negative effectors in response to amino acid starvation. Results presented here for a GCN4-lacZ gene fusion support th...

journal_title：Molecular and cellular biology

authors： Hinnebusch AG

更新日期：1985-09-01 00:00:00

abstract：:A family of transposable genetic elements in the genome of the frog, Xenopus laevis, is described. They are designated Tx1. Transposability of the elements was deduced by characterization of a chromosomal locus which is polymorphic for the presence or absence of a Tx1 element. Nucleotide sequence analysis suggested th...

journal_title：Molecular and cellular biology

authors： Garrett JE,Carroll D

更新日期：1986-03-01 00:00:00