Deletion of the laminin alpha4 chain leads to impaired microvessel maturation.

abstract：:We identified Ras guanine-releasing protein 3 (RasGRP3) as a guanine exchange factor expressed in blood vessels via an embryonic stem (ES) cell-based gene trap screen to identify novel vascular genes. RasGRP3 is expressed in embryonic blood vessels, down-regulated in mature adult vessels, and reexpressed in newly form...

journal_title：Molecular and cellular biology

authors： Roberts DM,Anderson AL,Hidaka M,Swetenburg RL,Patterson C,Stanford WL,Bautch VL

更新日期：2004-12-01 00:00:00

abstract：:One hallmark of tumor formation is the transcriptional upregulation of human telomerase reverse transcriptase, hTERT, and the resultant induction of telomerase activity. However, little is presently understood about how hTERT is differentially activated in tumor cells versus normal somatic cells. Specifically, it is u...

journal_title：Molecular and cellular biology

authors： Goueli BS,Janknecht R

更新日期：2004-01-01 00:00:00

abstract：:Cotranslational insertion of type I collagen chains into the lumen of the endoplasmic reticulum (ER) and their subsequent folding into a heterotrimeric helix is a complex process which requires coordinated action of the translation machinery, components of translocons, molecular chaperones, and modifying enzymes. Here...

journal_title：Molecular and cellular biology

authors： Stefanovic B,Stefanovic L,Schnabl B,Bataller R,Brenner DA

更新日期：2004-02-01 00:00:00

abstract：:Revertants were selected from aryl hydrocarbon hydroxylase (AHH)-deficient recessive mutants belonging to three complementation groups and from a dominant mutant of the Hepa-1 cell line. The recessive mutants had low spontaneous reversion frequencies (less than 4 X 10(-7] that were increased by mutagenesis. The majori...

journal_title：Molecular and cellular biology

authors： Van Gurp JR,Hankinson O

更新日期：1984-08-01 00:00:00

abstract：:Retinoid X receptors (RXR) have been identified as common subunits in the regulation of multiple hormonal signaling pathways. Using circular permutation and phasing analysis of specific response elements, we present evidence that RXR-retinoic acid receptor and RXR-thyroid hormone receptor heterodimer or RXR-RXR homodi...

journal_title：Molecular and cellular biology

authors： Lu XP,Eberhardt NL,Pfahl M

更新日期：1993-10-01 00:00:00

abstract：:The nuclear vitamin D receptor (VDR) is a member of a nuclear receptor superfamily and acts as a ligand-dependent transcription factor. A family of cotranscriptional activators (SRC-1, TIF2, and AIB-1) interacts with and activates the transactivation function of nuclear receptors in a ligand-dependent way. We examined...

journal_title：Molecular and cellular biology

authors： Takeyama K,Masuhiro Y,Fuse H,Endoh H,Murayama A,Kitanaka S,Suzawa M,Yanagisawa J,Kato S

更新日期：1999-02-01 00:00:00

abstract：:LAC9 is a DNA-binding protein that regulates transcription of the lactose-galactose regulon in Kluyveromyces lactis. The DNA-binding domain is composed of a zinc finger and nearby amino acids (M. M. Witte and R. C. Dickson, Mol. Cell. Biol. 8:3726-3733, 1988). The single zinc finger appears to be structurally related ...

journal_title：Molecular and cellular biology

authors： Witte MM,Dickson RC

更新日期：1990-10-01 00:00:00

abstract：:Transforming growth factor-beta (TGF-beta) is a secreted polypeptide factor that is thought to play a major role in the regulation of proliferation of many cell types and various differentiation processes. Several related isoforms have been structurally characterized, three of which, TGF-beta 1, -beta 2, and -beta 3, ...

journal_title：Molecular and cellular biology

authors： Lopez AR,Cook J,Deininger PL,Derynck R

更新日期：1992-04-01 00:00:00

abstract：:Treatment of K562 cells, a human erythroleukemia cell line, with desferrioxamine raised the levels of the receptor for transferrin (Tf) two- to threefold over that of the control cells. The levels of receptor were reduced by at least 50 and 35% of that of the control in cells treated with diferric Tf and ferric ammoni...

journal_title：Molecular and cellular biology

authors： Rao KK,Shapiro D,Mattia E,Bridges K,Klausner R

更新日期：1985-04-01 00:00:00

abstract：:A molecular karyotype of Neurospora crassa was obtained by using an alternating-field gel electrophoresis system which employs contour-clamped homogeneous electric fields. The migration of all seven N. crassa chromosomal DNAs was defined, and five of the seven molecules were separated from one another. The estimated s...

journal_title：Molecular and cellular biology

authors： Orbach MJ,Vollrath D,Davis RW,Yanofsky C

更新日期：1988-04-01 00:00:00

abstract：:Eukaryotic mRNA translation begins with recruitment of the 40S ribosome complex to the mRNA 5' end through the eIF4F initiation complex binding to the 5' m(7)G-mRNA cap. Spliced leader (SL) RNA trans splicing adds a trimethylguanosine (TMG) cap and a sequence, the SL, to the 5' end of mRNAs. Efficient translation of T...

journal_title：Molecular and cellular biology

authors： Wallace A,Filbin ME,Veo B,McFarland C,Stepinski J,Jankowska-Anyszka M,Darzynkiewicz E,Davis RE

更新日期：2010-04-01 00:00:00

abstract：:Much of our knowledge on adipogenesis comes from cell culture models of preadipocyte differentiation. Adipogenesis is induced by treating confluent preadipocytes with the adipogenic cocktail, which activates transcription factors (TFs) glucocorticoid receptor (GR) and CREB within minutes and increases expression of TF...

journal_title：Molecular and cellular biology

authors： Park YK,Wang L,Giampietro A,Lai B,Lee JE,Ge K

更新日期：2017-01-04 00:00:00

abstract：:Mammary epithelial cells (MECs) detached from the extracellular matrix (ECM) produce deleterious reactive oxygen species (ROS) and induce autophagy to survive. The coordination of such opposing responses likely dictates whether epithelial cells survive ECM detachment or undergo anoikis. Here, we demonstrate that the e...

journal_title：Molecular and cellular biology

authors： Avivar-Valderas A,Salas E,Bobrovnikova-Marjon E,Diehl JA,Nagi C,Debnath J,Aguirre-Ghiso JA

更新日期：2011-09-01 00:00:00

abstract：:Reaper (RPR), HID, and GRIM activate apoptosis in cells programmed to die during Drosophila development. We have previously shown that transient overexpression of RPR in the lepidopteran SF-21 cell line induces apoptosis and that members of the inhibitor of apoptosis (IAP) family of antiapoptotic proteins can inhibit ...

journal_title：Molecular and cellular biology

authors： Vucic D,Kaiser WJ,Miller LK

更新日期：1998-06-01 00:00:00

abstract：:A new retrovirus vector containing the gene for hygromycin B resistance (hyg) as a selectable marker under the control of an internal simian virus 40 promoter was constructed. It was used, together with an analogous previously described vector, DO1, which contains the gene for G418 resistance, to introduce and express...

journal_title：Molecular and cellular biology

authors： Yang Z,Korman AJ,Cooper J,Pious D,Accolla RS,Mulligan RC,Strominger JL

更新日期：1987-11-01 00:00:00

abstract：:To examine a role for focal adhesion kinase (FAK) in cardiac morphogenesis, we generated a line of mice with a conditional deletion of FAK in nkx2-5-expressing cells (herein termed FAKnk mice). FAKnk mice died shortly after birth, likely resulting from a profound subaortic ventricular septal defect and associated mala...

journal_title：Molecular and cellular biology

authors： Hakim ZS,DiMichele LA,Doherty JT,Homeister JW,Beggs HE,Reichardt LF,Schwartz RJ,Brackhan J,Smithies O,Mack CP,Taylor JM

更新日期：2007-08-01 00:00:00

abstract：:The doublesex and mab-3 related transcription factor 1 (Dmrt1) is a putative transcriptional regulator that is expressed exclusively in the gonads and is required for postnatal testis differentiation. Here we describe the transcriptional mechanisms regulating testis-specific expression of the Dmrt1 gene. Transient-tra...

journal_title：Molecular and cellular biology

authors： Lei N,Heckert LL

更新日期：2004-01-01 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：:The MyoD family of basic helix-loop-helix transcription factors function as heterodimers with members of the E-protein family to induce myogenic gene activation. The E-protein HEB is alternatively spliced to generate alpha and beta isoforms. While the function of these molecules has been studied in other cell types, q...

journal_title：Molecular and cellular biology

authors： Parker MH,Perry RL,Fauteux MC,Berkes CA,Rudnicki MA

更新日期：2006-08-01 00:00:00

abstract：:We have identified an essential cis element in the proximal promoter region of the rat carbamyl phosphate synthetase I (CPSI) gene that is requisite for promoter activity in liver nuclear extracts. Excess synthetic oligonucleotides specifying this region abolished promoter-dependent in vitro transcription. We show tha...

journal_title：Molecular and cellular biology

authors： Howell BW,Lagacé M,Shore GC

更新日期：1989-07-01 00:00:00

abstract：:Activation of canonical Wnt signaling inhibits brown adipogenesis of cultured cells by impeding induction of PPARgamma and C/EBPalpha. Although enforced expression of these adipogenic transcription factors restores lipid accumulation and expression of FABP4 in Wnt-expressing cells, additional expression of PGC-1alpha ...

journal_title：Molecular and cellular biology

authors： Kang S,Bajnok L,Longo KA,Petersen RK,Hansen JB,Kristiansen K,MacDougald OA

更新日期：2005-02-01 00:00:00

abstract：:Genetic and biochemical experiments have enabled us to more clearly distinguish three genetic loci, emtA, emtB, and emtC, all of which can be altered to give rise to resistance to the protein synthesis inhibitor, emetine, in cultured Chinese hamster cells. Genetic experiments have demonstrated that, unlike the emtB lo...

journal_title：Molecular and cellular biology

authors： Chang S,Wasmuth JJ

更新日期：1983-03-01 00:00:00

abstract：:The upstream activating sequence of the adjacent and divergently transcribed GAL1 and GAL10 genes of Saccharomyces cerevisiae (UASG) contains at least three distinct classes of overlapping transcriptional control sites. The transcription activator GAL4 binds to four related sites in UASG and induces expression of GAL1...

journal_title：Molecular and cellular biology

authors： Finley RL Jr,West RW Jr

更新日期：1989-10-01 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：:Transcriptional coactivators play a crucial role in gene expression by communicating between regulatory factors and the basal transcription machinery. The coactivator multiprotein bridging factor 1 (MBF1) was originally identified as a bridging molecule that connects the Drosophila nuclear receptor FTZ-F1 and TATA-bin...

journal_title：Molecular and cellular biology

authors： Takemaru K,Harashima S,Ueda H,Hirose S

更新日期：1998-09-01 00:00:00

abstract：:The Saccharomyces cerevisiae CDC25 gene and closely homologous genes in other eukaryotes encode guanine nucleotide exchange factors for Ras proteins. We have determined the minimal region of the budding yeast CDC25 gene capable of activity in vivo. The region required for full biological activity is approximately 450 ...

journal_title：Molecular and cellular biology

authors： Lai CC,Boguski M,Broek D,Powers S

更新日期：1993-03-01 00:00:00

abstract：:Malignant gliomas are highly lethal neoplasms with limited treatment options. We previously found that the heparan sulfate proteoglycan glypican 1 (GPC1) is universally and highly expressed in human gliomas. In this study, we investigated the biological activity of GPC1 expression in both human glioma cells and normal...

journal_title：Molecular and cellular biology

authors： Qiao D,Meyer K,Friedl A

更新日期：2013-11-01 00:00:00

abstract：:Rapid kinetic techniques were employed to measure the transport of adenine in adenine phosphoribosyltransferase-deficient L929 and Chinese hamster ovary (CHO) cells in zero-trans entry and exit and equilibrium exchange procedures. The kinetic parameters of transport were computed by fitting appropriate integrated rate...

journal_title：Molecular and cellular biology

authors： Puziss MB,Wohlhueter RM,Plagemann PG

更新日期：1983-01-01 00:00:00

abstract：:We cloned a 12.3-kilobase (kb) endogenous plasmid, Ddp1, found in several wild-type and laboratory strains of Dictyostelium discoideum into pBR322. The cloned plasmids have been used to cotransform D. discoideum cells with B10S, a transformation vector carrying a gene fusion conferring resistance to G418. Whereas B10S...

journal_title：Molecular and cellular biology

authors： Firtel RA,Silan C,Ward TE,Howard P,Metz BA,Nellen W,Jacobson A

更新日期：1985-11-01 00:00:00

abstract：:The regulatory subunits of cyclic AMP (cAMP)-dependent protein kinase from a dibutyryl cAMP-resistant S49 mouse lymphoma cell mutant, clone U200/65.1, and its revertants were visualized by two-dimensional polyacrylamide gel electrophoresis. Clone U200/65.1 co-expressed electrophoretically distinguishable mutant and wi...

journal_title：Molecular and cellular biology

authors： van Daalen Wetters T,Coffino P

更新日期：1983-02-01 00:00:00