Positive and negative regulatory elements mediating transcription from the Drosophila melanogaster actin 5C distal promoter.

abstract：:Human neuroblastoma cells often carry amplified DNA encompassing the gene N-myc. Amplified N-myc has been found localized in "double minutes" in direct tumor cell preparations. In contrast, later passages carried amplified N-myc almost exclusively within a single homogeneously staining chromosomal region located at a ...

journal_title：Molecular and cellular biology

authors： Amler LC,Schwab M

更新日期：1989-11-01 00:00:00

abstract：:Histone modifications occur in precise patterns and are proposed to signal the recruitment of effector molecules that profoundly impact chromatin structure, gene regulation, and cell cycle events. The linked modifications serine 10 phosphorylation and lysine 14 acetylation on histone H3 (H3S10phK14ac), modifications c...

journal_title：Molecular and cellular biology

authors： Walter W,Clynes D,Tang Y,Marmorstein R,Mellor J,Berger SL

更新日期：2008-04-01 00:00:00

abstract：:The single-copy gene encoding the alpha subunit of glycoprotein hormones is expressed in the pituitaries of all mammals and in the placentas of only primates and horses. We have systematically analyzed the promoter-regulatory elements of the human and bovine alpha-subunit genes to elucidate the molecular mechanisms un...

journal_title：Molecular and cellular biology

authors： Bokar JA,Keri RA,Farmerie TA,Fenstermaker RA,Andersen B,Hamernik DL,Yun J,Wagner T,Nilson JH

更新日期：1989-11-01 00:00:00

abstract：:The autonomously replicating rRNA genes (rDNA) in the somatic nucleus of Tetrahymena thermophila are maintained at a copy number of approximately 10(4) per nucleus. A mutant in which the replication properties of this molecule were altered was isolated and characterized. This mutation of inbred strain C3, named rmm4, ...

journal_title：Molecular and cellular biology

authors： Yaeger PC,Orias E,Shaiu WL,Larson DD,Blackburn EH

更新日期：1989-02-01 00:00:00

abstract：:Krüppel-like factors 3 and 8 (KLF3 and KLF8) are highly related transcriptional regulators that bind to similar sequences of DNA. We have previously shown that in erythroid cells there is a regulatory hierarchy within the KLF family, whereby KLF1 drives the expression of both the Klf3 and Klf8 genes and KLF3 in turn r...

journal_title：Molecular and cellular biology

authors： Funnell AP,Mak KS,Twine NA,Pelka GJ,Norton LJ,Radziewic T,Power M,Wilkins MR,Bell-Anderson KS,Fraser ST,Perkins AC,Tam PP,Pearson RC,Crossley M

更新日期：2013-08-01 00:00:00

abstract：:Gap junctions are membrane channels that permit the interchange of ions and other low-molecular-weight molecules between adjacent cells. Rous sarcoma virus (RSV)-induced transformation is marked by an early and profound disruption of gap-junctional communication, suggesting that these membrane structures may serve as ...

journal_title：Molecular and cellular biology

authors： Crow DS,Beyer EC,Paul DL,Kobe SS,Lau AF

更新日期：1990-04-01 00:00:00

abstract：:In Chlamydomonas reinhardi the chloroplast DNA (ch;DNA) of mating type plus cells undergoes cyclical methylation and demethylation during the life cycle. Methylation occurs during gametogenesis, and fully differentiated gametes can be dedifferentiated back to vegetative cells which contain nonmethylated chlDNA by the ...

journal_title：Molecular and cellular biology

authors： Sano H,Grabowy C,Sager R

更新日期：1984-10-01 00:00:00

abstract：:The extracellular matrix (ECM) promotes tissue morphogenesis, cell migration, and the differentiation of a variety of cell types. However, the mechanisms by which ECM causes differentiated gene expression have been unknown. In this report, we show that culturing the hepatocyte-derived cell line H2.35 on an ECM gel cha...

journal_title：Molecular and cellular biology

authors： DiPersio CM,Jackson DA,Zaret KS

更新日期：1991-09-01 00:00:00

abstract：:The cardiac troponin C (cTnC) gene produces identical transcripts in slow-twitch skeletal muscle and in heart muscle (R. Gahlmann, R. Wade, P. Gunning, and L. Kedes, J. Mol. Biol. 201:379-391, 1988). A separate gene encodes the fast-twitch skeletal muscle troponin C and is not expressed in heart muscle. We have used t...

journal_title：Molecular and cellular biology

authors： Christensen TH,Prentice H,Gahlmann R,Kedes L

更新日期：1993-11-01 00:00:00

abstract：:Oncostatin M is a polypeptide cytokine, produced by normal and malignant hematopoietic cells, that has several in vitro activities, including the ability to inhibit growth of cultured carcinoma cells. Here we present a structural and functional comparison of two oncostatin M-related proteins (Mr 36,000 and 32,000) sec...

journal_title：Molecular and cellular biology

authors： Linsley PS,Kallestad J,Ochs V,Neubauer M

更新日期：1990-05-01 00:00:00

abstract：:During mammalian dosage compensation, one of two X-chromosomes in female cells is inactivated. The choice of which X is silenced can be imprinted or stochastic. Although genetic loci influencing the choice decision have been identified, the primary marks for imprinting and random selection remain undefined. Here, we e...

journal_title：Molecular and cellular biology

authors： Boumil RM,Ogawa Y,Sun BK,Huynh KD,Lee JT

更新日期：2006-03-01 00:00:00

abstract：:The erb A oncogene is a dominant negative allele of a thyroid hormone receptor gene and acts in the cancer cell by encoding a transcriptional repressor. We demonstrate here that the DNA sequence recognition properties of the oncogenic form of the erb A protein are significantly altered from those of the normal thyroid...

journal_title：Molecular and cellular biology

authors： Chen H,Smit-McBride Z,Lewis S,Sharif M,Privalsky ML

更新日期：1993-04-01 00:00:00

abstract：:Our objective was to establish an experimental model of a self-sustained and bistable extracellular signal-regulated kinase 1/2 (ERK1/2) signaling process. A single stimulation of cells with cytokines causes rapid ERK1/2 activation, which returns to baseline in 4 h. Repeated stimulation leads to sustained activation o...

journal_title：Molecular and cellular biology

authors： Liu W,Tundwal K,Liang Q,Goplen N,Rozario S,Quayum N,Gorska M,Wenzel S,Balzar S,Alam R

更新日期：2010-04-01 00:00:00

abstract：:Welander distal myopathy (WDM) is a muscle dystrophy characterized by adult-onset distal muscle weakness, prevalently impacting the distal long extensors of the hands and feet. WDM is an autosomal dominant disorder caused by a missense mutation (c.1362G>A; p.E384K) in the TIA1 (T-cell intracellular antigen 1) gene, wh...

journal_title：Molecular and cellular biology

authors： Carrascoso I,Sánchez-Jiménez C,Silion E,Alcalde J,Izquierdo JM

更新日期：2018-12-11 00:00:00

abstract：:Eukaryotic viruses have devised numerous strategies to downregulate activity of the interferon-induced, double-stranded (dsRNA)-activated protein kinase (referred to as p68 on the basis of its Mr of 68,000 in human cells). Viruses must exert this control to avoid extensive phosphorylation of the alpha subunit of eukar...

journal_title：Molecular and cellular biology

authors： Katze MG,Wambach M,Wong ML,Garfinkel M,Meurs E,Chong K,Williams BR,Hovanessian AG,Barber GN

更新日期：1991-11-01 00:00:00

abstract：:The UvsW protein of bacteriophage T4 is involved in many aspects of phage DNA metabolism, including repair, recombination, and recombination-dependent replication. UvsW has also been implicated in the repression of origin-dependent replication at late times of infection, when UvsW is normally synthesized. Two well-cha...

journal_title：Molecular and cellular biology

authors： Dudas KC,Kreuzer KN

更新日期：2001-04-01 00:00:00

abstract：:Histone H3 lysine 9 (H3K9) methylation has broad roles in transcriptional repression, gene silencing, maintenance of heterochromatin, and epigenetic inheritance of heterochromatin. Using Xenopus laevis oocytes, we have previously shown that targeting G9a, an H3K9 histone methyltransferase, to chromatin increases H3K9 ...

journal_title：Molecular and cellular biology

authors： Stewart MD,Sommerville J,Wong J

更新日期：2006-09-01 00:00:00

abstract：:The murine Igh locus has a 3' regulatory region (3' RR) containing four enhancers (hs3A, hs1,2, hs3B, and hs4) at DNase I-hypersensitive sites. The 3' RR exerts long-range effects on class switch recombination (CSR) to several isotypes through its control of germ line transcription. By measuring levels of acetylated h...

journal_title：Molecular and cellular biology

authors： Garrett FE,Emelyanov AV,Sepulveda MA,Flanagan P,Volpi S,Li F,Loukinov D,Eckhardt LA,Lobanenkov VV,Birshtein BK

更新日期：2005-02-01 00:00:00

abstract：:The accumulation of assembled holoenzymes composed of regulatory D-type cyclins and their catalytic partner, cyclin-dependent kinase 4 (cdk4), is rate limiting for progression through the G1 phase of the cell cycle in mammalian fibroblasts. Both the synthesis and assembly of D-type cyclins and cdk4 depend upon serum s...

journal_title：Molecular and cellular biology

authors： Kato JY,Matsuoka M,Strom DK,Sherr CJ

更新日期：1994-04-01 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：:Histone methylation at H3K4 and H3K36 is commonly associated with genes actively transcribed by RNA polymerase II (RNAPII) and is catalyzed by Saccharomyces cerevisiae Set1 and Set2, respectively. Here we report that both methyltransferases can be UV cross-linked to RNA in vivo High-throughput sequencing of the bound ...

journal_title：Molecular and cellular biology

authors： Sayou C,Millán-Zambrano G,Santos-Rosa H,Petfalski E,Robson S,Houseley J,Kouzarides T,Tollervey D

更新日期：2017-06-29 00:00:00

abstract：:A previously uncharacterized Saccharomyces cerevisiae gene, FAL1, was found by sequence comparison as a homolog of the eukaryotic translation initiation factor 4A (eIF4A). Fal1p has 55% identity and 73% similarity on the amino acid level to yeast eIF4A, the prototype of ATP-dependent RNA helicases of the DEAD-box prot...

journal_title：Molecular and cellular biology

authors： Kressler D,de la Cruz J,Rojo M,Linder P

更新日期：1997-12-01 00:00:00

abstract：:Gene activation requires alteration of chromatin structure to facilitate active transcription complex formation at a gene promoter. Nucleosome remodeling complexes and histone modifying complexes each play unique and interdependent roles in bringing about these changes. The role of distant enhancers in these structura...

journal_title：Molecular and cellular biology

authors： Kim A,Dean A

更新日期：2003-11-01 00:00:00

abstract：:Studies ex vivo have shown that phosphoinositide 3-kinase (PI3K) activity is necessary but not sufficient for insulin-stimulated glucose uptake. Unexpectedly, mice lacking either of the PI3K regulatory subunits p85alpha or p85beta exhibit increased insulin sensitivity. The insulin hypersensitivity is particularly unex...

journal_title：Molecular and cellular biology

authors： Brachmann SM,Ueki K,Engelman JA,Kahn RC,Cantley LC

更新日期：2005-03-01 00:00:00

abstract：:TBC (Tre-2/Bub2/Cdc16) domains are predicted to encode GTPase-activating proteins (GAPs) for Rab family G proteins. While approximately 50 TBC proteins are predicted to exist in humans, little is known about their substrate specificity. Here we show that TRE17 (also called Tre-2 and USP6), a founding member of the TBC...

journal_title：Molecular and cellular biology

authors： Martinu L,Masuda-Robens JM,Robertson SE,Santy LC,Casanova JE,Chou MM

更新日期：2004-11-01 00:00:00

abstract：:Very little is known about the mechanisms mediating longevities of mRNAs. As a means of identifying potential cis- and trans-acting elements which stabilize an individual mRNA, naturally occurring mutations that decreased stability of the normally long-lived globin mRNA were analyzed. Our previous studies demonstrated...

journal_title：Molecular and cellular biology

authors： Weiss IM,Liebhaber SA

更新日期：1995-05-01 00:00:00

abstract：:The transcriptional coactivator Cbp plays an important role in a wide range of cellular processes, including proliferation, differentiation, and apoptosis. Although studies have shown its requirement for hematopoietic stem cell (HSC) development, its role in adult HSC maintenance, as well as the cellular and molecular...

journal_title：Molecular and cellular biology

authors： Chan WI,Hannah RL,Dawson MA,Pridans C,Foster D,Joshi A,Göttgens B,Van Deursen JM,Huntly BJ

更新日期：2011-12-01 00:00:00

abstract：:Interleukin-5 (IL-5) and IL-6 have both been reported to act as B-cell differentiation factors by stimulating activated B cells to secrete antibody. However, it has not been possible to directly compare the effects of these two lymphokines because of the lack of a suitable B-cell line capable of responding to both. We...

journal_title：Molecular and cellular biology

authors： Randall TD,Lund FE,Brewer JW,Aldridge C,Wall R,Corley RB

更新日期：1993-07-01 00:00:00

abstract：:Ubiquitously expressed transcription factors play an integral role in establishing and regulating patterns of gene transcription. Common factor 1 (CF1) is a ubiquitously expressed DNA-binding protein previously identified in our laboratory. We show here that CF1 recognizes sites in several diverse transcription elemen...

journal_title：Molecular and cellular biology

authors： Riggs KJ,Merrell KT,Wilson G,Calame K

更新日期：1991-03-01 00:00:00

abstract：:Protein ubiquitination provides an efficient and reversible mechanism to regulate cell cycle progression and checkpoint control. Numerous regulatory proteins direct the addition of ubiquitin to lysine residues on target proteins, and these are countered by an army of deubiquitinating enzymes (DUBs). BRCA1-associated p...

journal_title：Molecular and cellular biology

authors： Misaghi S,Ottosen S,Izrael-Tomasevic A,Arnott D,Lamkanfi M,Lee J,Liu J,O'Rourke K,Dixit VM,Wilson AC

更新日期：2009-04-01 00:00:00