Characterization of VSG gene expression site promoters and promoter-associated DNA rearrangement events.

abstract：:Cyclooxygenase (COX) catalyzes the first step in prostanoid biosynthesis and exists as two isoforms. COX-1 is a constitutive enzyme involved in physiological processes, whereas COX-2 is induced by a variety of stimuli. MicroRNAs (miRNAs) are noncoding RNAs that function as key posttranscriptional regulators of gene ex...

journal_title：Molecular and cellular biology

authors： Motiño O,Francés DE,Mayoral R,Castro-Sánchez L,Fernández-Velasco M,Boscá L,García-Monzón C,Brea R,Casado M,Agra N,Martín-Sanz P

更新日期：2015-07-01 00:00:00

abstract：:In vitro studies have implicated nuclear respiratory factor 1 (NRF-1) in the transcriptional expression of nuclear genes required for mitochondrial respiratory function, as well as for other fundamental cellular activities. We investigated here the in vivo function of NRF-1 in mammals by disrupting the gene in mice. A...

journal_title：Molecular and cellular biology

authors： Huo L,Scarpulla RC

更新日期：2001-01-01 00:00:00

abstract：:The catalytic function of Src-related tyrosine protein kinases is repressed by phosphorylation of a conserved carboxy-terminal tyrosine residue. Recent studies suggest that this inhibitory event is not the result of autophosphorylation but that it is mediated by another cytoplasmic tyrosine protein kinase, termed p50c...

journal_title：Molecular and cellular biology

authors： Gervais FG,Chow LM,Lee JM,Branton PE,Veillette A

更新日期：1993-11-01 00:00:00

abstract：:The Sry-related high-mobility-group box transcription factor Sox9 recruits the redundant L-Sox5 and Sox6 proteins to effect chondrogenesis, but the mode of action of the trio remains unclear. We identify here a highly conserved 359-bp sequence 10 kb upstream of the Agc1 gene for aggrecan, a most essential cartilage pr...

journal_title：Molecular and cellular biology

authors： Han Y,Lefebvre V

更新日期：2008-08-01 00:00:00

abstract：:As a prominent characteristic of cell life, the regulation of cell quiescence is important for proper development, regeneration, and stress resistance and may play a role in certain degenerative diseases. However, the mechanism underlying quiescence remains largely unknown. Encysted embryos of Artemia are useful for s...

journal_title：Molecular and cellular biology

authors： Dai L,Ye S,Li HW,Chen DF,Wang HL,Jia SN,Lin C,Yang JS,Yang F,Nagasawa H,Yang WJ

更新日期：2017-03-17 00:00:00

abstract：:Tyrosine phosphorylation-dependent signaling, as mediated by members of the epidermal growth factor receptor (EGFR) family (ErbB1 to -4) of protein tyrosine kinases (PTKs), Src family PTKs (SFKs), and cytokines such as interleukin-6 (IL-6) that signal via signal transducer and activator of transcription 3 (STAT3), is ...

journal_title：Molecular and cellular biology

authors： Shields BJ,Wiede F,Gurzov EN,Wee K,Hauser C,Zhu HJ,Molloy TJ,O'Toole SA,Daly RJ,Sutherland RL,Mitchell CA,McLean CA,Tiganis T

更新日期：2013-02-01 00:00:00

abstract：:During aging, cellular plasticity and senescence play important roles in tissue regeneration and the pathogenesis of different diseases, including cancer. We have recently shown that senescent breast luminal cells can activate their adjacent stromal fibroblasts. In the present report, we present clear evidence that th...

journal_title：Molecular and cellular biology

authors： Al-Khalaf HH,Ghebeh H,Wakil SM,Al-Mohanna F,Aboussekhra A

更新日期：2020-04-13 00:00:00

abstract：:IkappaB alpha retains the transcription factor NF-kappaB in the cytoplasm, thus inhibiting its function. Various stimuli inactivate IkappaB alpha by triggering phosphorylation of the N-terminal residues Ser32 and Ser36. Phosphorylation of both serines is demonstrated directly by phosphopeptide mapping utilizing calpai...

journal_title：Molecular and cellular biology

authors： Brown K,Franzoso G,Baldi L,Carlson L,Mills L,Lin YC,Gerstberger S,Siebenlist U

更新日期：1997-06-01 00:00:00

abstract：:Site-specific recombination provides a powerful tool for studying gene function at predetermined chromosomal sites. Here we describe the use of a blasticidin resistance system to select for recombination in mammalian cells using the yeast enzyme FLP. The vector is designed so that site-specific recombination reconstru...

journal_title：Molecular and cellular biology

authors： Aladjem MI,Brody LL,O'Gorman S,Wahl GM

更新日期：1997-02-01 00:00:00

abstract：:We investigated the recognition of the conserved 5-bp repeated motif NGAAN, which occurs in heat shock gene promoters of Drosophila melanogaster and other eukaryotic organisms, by human heat shock transcription factor (HSF). Extended heat shock element mutants of the human HSP70 gene promoter, containing additional NG...

journal_title：Molecular and cellular biology

authors： Cunniff NF,Wagner J,Morgan WD

更新日期：1991-07-01 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：:The Saccharomyces cerevisiae cell cycle is arrested in G1 phase by the mating factor pathway. Genetic evidence has suggested that the G1 cyclins Cln1, Cln2, and Cln3 are targets of this pathway whose inhibition results in G1 arrest. Inhibition of Cln1- and Cln2-associated kinase activity by the mating factor pathway a...

journal_title：Molecular and cellular biology

authors： Jeoung DI,Oehlen LJ,Cross FR

更新日期：1998-01-01 00:00:00

abstract：:The transcriptional coactivator BOB.1/OBF.1 confers B-cell specificity on the transcription factors Oct1 and Oct2 at octamer site-containing promoters. A hallmark of the BOB.1/OBF.1 mutation in the mouse is the absence of germinal center development in secondary lymphoid organs, demonstrating the requirement for BOB.1...

journal_title：Molecular and cellular biology

authors： Hess J,Nielsen PJ,Fischer KD,Bujard H,Wirth T

更新日期：2001-03-01 00:00:00

abstract：:Glucose and oxygen are two of the most important molecules transferred from mother to fetus during eutherian pregnancy, and the metabolic fates of these nutrients converge at the transport and metabolism of pyruvate in mitochondria. Pyruvate enters the mitochondrial matrix through the mitochondrial pyruvate carrier (M...

journal_title：Molecular and cellular biology

authors： Bowman CE,Zhao L,Hartung T,Wolfgang MJ

更新日期：2016-07-14 00:00:00

abstract：:Binding of the thyroid hormone receptor (TR) to thyroid hormone-responsive elements (TREs) is crucial for regulation of gene expression by thyroid hormone. The TR binds to each half-site of a palindromic TRE separately, as a monomer, or simultaneously, as a homodimer. In addition, the TR monomer interacts with a 42-kD...

journal_title：Molecular and cellular biology

authors： Lazar MA,Berrodin TJ,Harding HP

更新日期：1991-10-01 00:00:00

abstract：:We show that the nuclear genes for the cytoplasmic and mitochondrial leucyl-tRNA synthetase (LeuRS) of Neurospora crassa are distinct in their encoded proteins, codon usage, mRNA levels, and regulation. The 4.2-kilobase-pair region representing the structural gene for cytoplasmic LeuRS and flanking regions has been se...

journal_title：Molecular and cellular biology

authors： Chow CM,Rajbhandary UL

更新日期：1989-11-01 00:00:00

abstract：:The Ace2p and Swi5p zinc finger proteins have nearly identical DNA-binding domains, yet in vivo they activate transcription of different genes, CTS1 and HO. We now demonstrate that Ace2p and Swi5p recognize sites in the CTS1 and HO promoters with the same affinities, raising the question of how promoter specificity is...

journal_title：Molecular and cellular biology

authors： Dohrmann PR,Voth WP,Stillman DJ

更新日期：1996-04-01 00:00:00

abstract：:Previous studies have identified novel modifications in the core fold domain of histone H2B, but relatively little is known about the function of these putative histone modification sites. We have mutated core modifiable residues that are conserved in Saccharomyces cerevisiae histone H2B and characterized the effects ...

journal_title：Molecular and cellular biology

authors： Kyriss MN,Jin Y,Gallegos IJ,Sanford JA,Wyrick JJ

更新日期：2010-07-01 00:00:00

abstract：:The tumor suppressor WT1 represses and activates transcription. The loss and/or imbalance of the dual transcriptional activity of WT1 may contribute to Wilms' tumor. In this study, we identified par-4 (for prostate apoptosis response) as a WT1-interacting protein that itself functions as a transcriptional repressor. p...

journal_title：Molecular and cellular biology

authors： Johnstone RW,See RH,Sells SF,Wang J,Muthukkumar S,Englert C,Haber DA,Licht JD,Sugrue SP,Roberts T,Rangnekar VM,Shi Y

更新日期：1996-12-01 00:00:00

abstract：:Neural retina leucine zipper (Nrl), a key basic motif leucine zipper (bZIP) transcription factor, modulates rod photoreceptor differentiation by activating rod-specific target genes. In searching for factors that might couple with Nrl to modulate its transcriptional activity through posttranslational modification, we ...

journal_title：Molecular and cellular biology

authors： Kim JW,Jang SM,Kim CH,An JH,Choi KH

更新日期：2012-05-01 00:00:00

abstract：:Protein modification by SUMO conjugation has emerged to be an important regulatory event. Recently, the mechanisms through which SUMO elicits its effects on target proteins have been elucidated. One of these is the noncovalent association between SUMO and coregulatory proteins via SUMO interaction motifs (SIMs). We th...

journal_title：Molecular and cellular biology

authors： Yang SH,Sharrocks AD

更新日期：2010-05-01 00:00:00

abstract：:The v-myb oncogene of avian myeloblastosis virus causes acute myelomonocytic leukemia in chickens and transforms avian myeloid cells in vitro. Its protein product p48v-myb is a nuclear, sequence-specific, DNA-binding protein which activates gene expression in transient DNA transfection studies. To investigate the rela...

journal_title：Molecular and cellular biology

authors： Lane T,Ibanez C,Garcia A,Graf T,Lipsick J

更新日期：1990-06-01 00:00:00

abstract：:Overexpression of the nuclear receptor 4A1 (NR4A1) in breast cancer patients is a prognostic factor for decreased survival and increased metastasis, and this has been linked to NR4A1-dependent regulation of transforming growth factor β (TGF-β) signaling. Results of RNA interference studies demonstrate that basal migra...

journal_title：Molecular and cellular biology

authors： Hedrick E,Lee SO,Doddapaneni R,Singh M,Safe S

更新日期：2016-04-15 00:00:00

abstract：:MicroRNA 155 (miR-155) is an oncomir, generated as a noncoding RNA from the BIC gene whose promoter activity is mainly controlled via activation protein 1 (AP-1) and NF-κB transcription factors. We found that the expression levels of miR-155 and programmed cell death 4 (Pdcd4) exhibit inverse relationships in tongue c...

journal_title：Molecular and cellular biology

authors： Zargar S,Tomar V,Shyamsundar V,Vijayalakshmi R,Somasundaram K,Karunagaran D

更新日期：2019-03-01 00:00:00

abstract：:The Gfi-1 proto-oncogene encodes a zinc finger protein with six C2H2-type, C-terminal zinc finger motifs and is activated by provirus integration in T-cell lymphoma lines selected for interleukin-2 independence in culture and in primary retrovirus-induced thymomas. Gfi-1 expression in adult animals is restricted to th...

journal_title：Molecular and cellular biology

authors： Zweidler-Mckay PA,Grimes HL,Flubacher MM,Tsichlis PN

更新日期：1996-08-01 00:00:00

abstract：:Heterogeneous nuclear RNA contains double-stranded regions that are not found in mRNA and that may serve as recognition elements for processing enzymes. The double-stranded regions of heterogeneous nuclear RNA prepared from HeLa cells promoted the synthesis of (2',5')oligoadenylate [(2',5')oligo(A) or (2'5')An] when i...

journal_title：Molecular and cellular biology

authors： Nilsen TW,Maroney PA,Robertson HD,Baglioni C

更新日期：1982-02-01 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：:The Saccharomyces cerevisiae PGK (phosphoglycerate kinase) gene encodes one of the most abundant mRNA and protein species in the cell. To identify the promoter sequences required for the efficient expression of PGK, we undertook a detailed internal deletion analysis of the 5' noncoding region of the gene. Our analysis...

journal_title：Molecular and cellular biology

authors： Ogden JE,Stanway C,Kim S,Mellor J,Kingsman AJ,Kingsman SM

更新日期：1986-12-01 00:00:00

abstract：:The protein kinase inhibitor 2-aminopurine (2-AP) greatly stimulated expression in human promonocytes-macrophages of plasmid constructs carrying various reporter genes (chloramphenicol acetyltransferase, lacZ, firefly luciferase [luc], and Salmonella typhimurium histidinol dehydrogenase [his]) driven by the human immu...

journal_title：Molecular and cellular biology

authors： Brown FL,Tahaoglu E,Graham GJ,Maio JJ

更新日期：1993-09-01 00:00:00

abstract：:We have characterized features of the site recognized by a double-stranded DNA endonuclease, I-SceII, encoded by intron 4 alpha of the yeast mitochondrial COX1 gene. We determined the effects of 36 point mutations on the cleavage efficiency of natural and synthetic substrates containing the Saccharomyces capensis I-Sc...

journal_title：Molecular and cellular biology

authors： Wernette C,Saldanha R,Smith D,Ming D,Perlman PS,Butow RA

更新日期：1992-02-01 00:00:00