Both DNA Polymerases δ and ε Contact Active and Stalled Replication Forks Differently.

abstract：:B-lymphocyte development requires the basic helix-loop-helix proteins encoded by the E2A gene. In this study, the control mechanism of E2A was further explored by disruption of the E2A-related genes, E2-2 and HEB. In contrast to E2A, E2-2 and HEB are not essential for the establishment of the B-cell lineage. However, ...

journal_title：Molecular and cellular biology

authors： Zhuang Y,Cheng P,Weintraub H

更新日期：1996-06-01 00:00:00

abstract：:Cyclic AMP-responsive element-binding protein 3-like 3, hepatocyte specific (CREBH), is a hepatic transcription factor that functions as a key regulator of energy homeostasis. Here, we defined a regulatory CREBH posttranslational modification process, namely, lysine-specific acetylation, and its functional involvement...

journal_title：Molecular and cellular biology

authors： Kim H,Mendez R,Chen X,Fang D,Zhang K

更新日期：2015-12-01 00:00:00

abstract：:Diminished cyclooxygenase 2 (COX-2) expression in fibroblasts, with a resultant defect in the production of the antifibrotic mediator prostaglandin E(2), plays a key role in the pathogenesis of idiopathic pulmonary fibrosis (IPF). Here, we have characterized the molecular mechanism. We found that COX-2 mRNA levels in ...

journal_title：Molecular and cellular biology

authors： Coward WR,Watts K,Feghali-Bostwick CA,Knox A,Pang L

更新日期：2009-08-01 00:00:00

abstract：:The cellular transcription factor E2F appears to be a target for the regulatory action of the retinoblastoma tumor suppressor gene product. The recent isolation of the E2F1 cDNA clone, which encodes a polypeptide with properties characteristic of E2F, has now allowed a more detailed analysis of the regulation of E2F f...

journal_title：Molecular and cellular biology

authors： Cress WD,Johnson DG,Nevins JR

更新日期：1993-10-01 00:00:00

abstract：:AIRE is a transcriptional activator that directs the ectopic expression of many tissue-specific genes in medullary thymic epithelial cells, which plays an important role in the negative selection of autoreactive T cells. However, its mechanism of action remains poorly understood. In this study, we found that AIRE regu...

journal_title：Molecular and cellular biology

authors： Oven I,Brdicková N,Kohoutek J,Vaupotic T,Narat M,Peterlin BM

更新日期：2007-12-01 00:00:00

abstract：:It is well established that steroid receptor function requires interaction with coactivators. However, the mechanisms through which steroid receptors elicit precise assembly of coactivator complexes and the way the steroid activation signal is transduced remain elusive. Using a T47D cell line stably integrated with a ...

journal_title：Molecular and cellular biology

authors： Li X,Wong J,Tsai SY,Tsai MJ,O'Malley BW

更新日期：2003-06-01 00:00:00

abstract：:Mammalian eukaryotic translation initiation factor 4F (eIF4F) is a cap-binding protein complex consisting of three subunits: eIF4E, eIF4A, and eIF4G. In yeast and plants, two related eIF4G species are encoded by two different genes. To date, however, only one functional eIF4G polypeptide, referred to here as eIF4GI, h...

journal_title：Molecular and cellular biology

authors： Gradi A,Imataka H,Svitkin YV,Rom E,Raught B,Morino S,Sonenberg N

更新日期：1998-01-01 00:00:00

abstract：:The minichromosome maintenance protein 10 (Mcm10) is an evolutionarily conserved factor that is essential for replication initiation and elongation. Mcm10 is part of the eukaryotic replication fork and interacts with a variety of proteins, including the Mcm2-7 helicase and DNA polymerase alpha/primase complexes. A mot...

journal_title：Molecular and cellular biology

authors： Das-Bradoo S,Ricke RM,Bielinsky AK

更新日期：2006-07-01 00:00:00

abstract：:Sirtuins are a family of protein deacetylases, deacylases, and ADP-ribosyltransferases that regulate life span, control the onset of numerous age-associated diseases, and mediate metabolic homeostasis. We have uncovered a novel role for the mitochondrial sirtuin SIRT4 in the regulation of hepatic lipid metabolism duri...

journal_title：Molecular and cellular biology

authors： Laurent G,de Boer VC,Finley LW,Sweeney M,Lu H,Schug TT,Cen Y,Jeong SM,Li X,Sauve AA,Haigis MC

更新日期：2013-11-01 00:00:00

abstract：:Degenerate oligonucleotide probes corresponding to a highly conserved region common to epidermal growth factor, transforming growth factor alpha, and vaccinia growth factor were used to identify a novel growth factor gene in the Shope fibroma virus genome. Sequence analysis indicates that the Shope fibroma growth fact...

journal_title：Molecular and cellular biology

authors： Chang W,Upton C,Hu SL,Purchio AF,McFadden G

更新日期：1987-01-01 00:00:00

abstract：:Oct-1 is a sequence-specific DNA binding transcription factor that is believed to regulate a large group of tissue-specific and ubiquitous genes. Both Oct-1 and the related but tissue-restricted Oct-2 protein bind to a DNA sequence termed the octamer motif (5'-ATGCAAAT-3') with equal affinity in vitro. To address the ...

journal_title：Molecular and cellular biology

authors： Wang VE,Schmidt T,Chen J,Sharp PA,Tantin D

更新日期：2004-02-01 00:00:00

abstract：:Transcriptional activation of eukaryotic genes depends on the precise and ordered recruitment of activators, chromatin modifiers/remodelers, coactivators, and general transcription factors to the promoters of target genes. Using the human matrix metalloproteinase 9 (MMP-9) gene as a model system, we investigated the s...

journal_title：Molecular and cellular biology

authors： Ma Z,Shah RC,Chang MJ,Benveniste EN

更新日期：2004-06-01 00:00:00

abstract：:The v-vis gene encodes p28sis, the transforming protein of simian sarcoma virus. This gene resulted from a fusion of the env gene of simian sarcoma-associated virus and the woolly monkey gene for the B chain of platelet-derived growth factor (PDGF). Previous work has shown that the v-sis gene product undergoes signal ...

journal_title：Molecular and cellular biology

authors： Lee BA,Maher DW,Hannink M,Donoghue DJ

更新日期：1987-10-01 00:00:00

abstract：:One of the central questions in eukaryotic transcription is how activators can transmit their signal to stimulate gene expression in the context of chromatin. The multisubunit SAGA coactivator complex has both histone acetyltransferase and deubiquitination activities and remodels chromatin to allow transcription. Whet...

journal_title：Molecular and cellular biology

authors： Nagy Z,Riss A,Romier C,le Guezennec X,Dongre AR,Orpinell M,Han J,Stunnenberg H,Tora L

更新日期：2009-03-01 00:00:00

abstract：:Using chromatin immunoprecipitation assays, we studied the 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD)-mediated recruitment of the aryl hydrocarbon receptor (AhR) and several co-regulators to the CYP1A1 promoter. AhR displayed a time-dependent recruitment, reaching a peak at 75 min and maintaining promoter occupancy fo...

journal_title：Molecular and cellular biology

authors： Matthews J,Wihlén B,Thomsen J,Gustafsson JA

更新日期：2005-07-01 00:00:00

abstract：:The kidney's vital filtration function depends on the structural integrity of the glomerulus, the proximal portion of the nephron. Within the glomerulus, the architecturally complex podocyte forms the final cellular barrier to filtration. Injury to the podocyte results in a morphological change called foot process eff...

journal_title：Molecular and cellular biology

authors： Yu H,Suleiman H,Kim AH,Miner JH,Dani A,Shaw AS,Akilesh S

更新日期：2013-12-01 00:00:00

abstract：:Chicken embryo fibroblast cells overexpressing activated mutant forms of human pp60c-src, but not those overexpressing normal human pp60c-src, exhibited high levels of type I phosphatidylinositol (PI) kinase activity associated with pp60c-src. Levels of PI kinase activity were positively correlated with src tyrosine p...

journal_title：Molecular and cellular biology

authors： Chan TO,Tanaka A,Bjorge JD,Fujita DJ

更新日期：1990-06-01 00:00:00

abstract：:The initiation of adenovirus DNA takes place at the termini of the viral genome and requires the presence of specific nucleotide sequence elements. To define the sequence organization of the viral origin, we tested a large number of deletion, insertion, and base substitution mutants for their ability to support initia...

journal_title：Molecular and cellular biology

authors： Wides RJ,Challberg MD,Rawlins DR,Kelly TJ

更新日期：1987-02-01 00:00:00

abstract：:GCN4 is a transcriptional activator of amino acid-biosynthetic genes in the yeast Saccharomyces cerevisiae. GCN2, a translational activator of GCN4 expression, contains a domain homologous to the catalytic subunit of eucaryotic protein kinases. Substitution of a highly conserved lysine residue in the kinase domain abo...

journal_title：Molecular and cellular biology

authors： Wek RC,Ramirez M,Jackson BM,Hinnebusch AG

更新日期：1990-06-01 00:00:00

abstract：:We have exploited the Escherichia coli lac operator/repressor system as a means to regulate the expression of a mammalian tRNA gene in vivo and in vitro. An oligonucleotide containing a lac operator (lacO) site was cloned immediately upstream of a human serine amber suppressor (Su+) tRNA gene. Insertion of a single la...

journal_title：Molecular and cellular biology

authors： Syroid DE,Tapping RI,Capone JP

更新日期：1992-10-01 00:00:00

abstract：:Skp2B, an F-box protein of unknown function, is frequently overexpressed in breast cancer. In order to determine the function of Skp2B and whether it has a role in breast cancer, we performed a two-hybrid screen and established transgenic mice expressing Skp2B in the mammary glands. We found that Skp2B interacts with ...

journal_title：Molecular and cellular biology

authors： Umanskaya K,Radke S,Chander H,Monardo R,Xu X,Pan ZQ,O'Connell MJ,Germain D

更新日期：2007-11-01 00:00:00

abstract：:Minisatellite DNA is repetitive DNA with a repeat unit length from 15 to 100 bp. While stable during mitosis, it destabilizes during meiosis, altering both in length and in sequence composition. The basis for this instability is unknown. To investigate the factors controlling minisatellite stability, a minisatellite s...

journal_title：Molecular and cellular biology

authors： Jauert PA,Edmiston SN,Conway K,Kirkpatrick DT

更新日期：2002-02-01 00:00:00

abstract：:Wnt signaling is thought to be mediated via interactions between beta-catenin and members of the LEF-1/TCF family of transcription factors. Here we study the mechanism of transcriptional regulation by LEF-1 in response to a Wnt-1 signal under conditions of endogenous beta-catenin in NIH 3T3 cells, and we examine wheth...

journal_title：Molecular and cellular biology

authors： Hsu SC,Galceran J,Grosschedl R

更新日期：1998-08-01 00:00:00

abstract：:We have shown previously that transcription of the Drosophila homeotic gene Antennapedia results in four major RNA species which differ in long 5'- and 3'-untranslated sequences. The protein-coding portion of these transcripts, however, is located in exons common to all. Using RNase protection assays and further cDNA ...

journal_title：Molecular and cellular biology

authors： Stroeher VL,Gaiser JC,Garber RL

更新日期：1988-10-01 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：:To define the sequence elements involved in initiation of DNA synthesis at the simian virus 40 origin of replication, we determined the relative replication efficiencies in vitro and in vivo of templates containing a variety of mutations within the origin region. Replication of the mutants in vitro was assayed by the ...

journal_title：Molecular and cellular biology

authors： Li JJ,Peden KW,Dixon RA,Kelly T

更新日期：1986-04-01 00:00:00

abstract：:In Pichia pastoris, alcohol oxidase (AOX) is the first enzyme in the methanol utilization pathway and is encoded by two genes, AOX1 and AOX2. The DNA and predicted amino acid sequences of the protein-coding portions of the genes are closely homologous, whereas flanking sequences share no homology. The functional roles...

journal_title：Molecular and cellular biology

authors： Cregg JM,Madden KR,Barringer KJ,Thill GP,Stillman CA

更新日期：1989-03-01 00:00:00

abstract：:The Rel family of transcription factors participate in a diverse array of processes, including acute responses to injury and infection, lymphocyte differentiation, and embryonic patterning. These proteins show homology in an extended region spanning about 300 amino acids (the Rel homology domain [RHD]). The RHD mediat...

journal_title：Molecular and cellular biology

authors： Tatei K,Levine M

更新日期：1995-07-01 00:00:00

abstract：:To determine if Neu is dominant over transforming growth factor beta (TGF-beta), we crossed mouse mammary tumor virus (MMTV)-Neu mice with MMTV-TGF-beta1(S223/225) mice expressing active TGF-beta1 in the mammary gland. Bigenic (NT) and Neu-induced mammary tumors developed with a similar latency. The bigenic tumors and...

journal_title：Molecular and cellular biology

authors： Muraoka RS,Koh Y,Roebuck LR,Sanders ME,Brantley-Sieders D,Gorska AE,Moses HL,Arteaga CL

更新日期：2003-12-01 00:00:00

abstract：:Three subtypes of retinoic acid receptors (RAR), termed RAR alpha, RAR beta, and RAR gamma, have been described. They are composed of different structural domains, including distinct domains for DNA and ligand binding. RARs specifically bind all-trans-retinoic acid (RA), 9-cis-RA, and retinoid analogs. In this study, ...

journal_title：Molecular and cellular biology

authors： Lamour FP,Lardelli P,Apfel CM

更新日期：1996-10-01 00:00:00