Phosphoinositide 3-kinase catalytic subunit deletion and regulatory subunit deletion have opposite effects on insulin sensitivity in mice.

abstract：:In the yeast Saccharomyces cerevisiae, sporulation occurs in response to nutritional and genetic signals. The process is initiated when nutrient availability limits mitotic growth, but only in MATa/MAT alpha diploid cells. Under these conditions, the cells express an activator of meiosis (IME1), which is required for ...

journal_title：Molecular and cellular biology

authors： Shah JC,Clancy MJ

更新日期：1992-03-01 00:00:00

abstract：:Addition of serum to mitogen-starved cells activates the cellular immediate-early gene (IEG) response. Serum response factor (SRF) contributes to such mitogen-stimulated transcriptional induction of many IEGs during the G0-G1 cell cycle transition. SRF is also believed to be essential for cell cycle progression, as im...

journal_title：Molecular and cellular biology

authors： Schratt G,Weinhold B,Lundberg AS,Schuck S,Berger J,Schwarz H,Weinberg RA,Rüther U,Nordheim A

更新日期：2001-04-01 00:00:00

abstract：:Three classes of E3 ubiquitin ligases, members of the Cbl, Hakai, and SOCS-Cul5-RING ligase families, stimulate the ubiquitination of phosphotyrosine-containing proteins, including receptor and nonreceptor tyrosine kinases and their phosphorylated substrates. Because ubiquitination frequently routes proteins for degra...

journal_title：Molecular and cellular biology

authors： Cooper JA,Kaneko T,Li SS

更新日期：2015-06-01 00:00:00

abstract：:The protein tyrosine kinase Syk couples the B-cell receptor (BCR) for antigen to multiple intracellular signaling pathways and also modulates cellular responses to inducers of oxidative stress in a receptor-independent fashion. In B cells, Syk is found in both the nuclear and cytoplasmic compartments but contains no r...

journal_title：Molecular and cellular biology

authors： Zhou F,Hu J,Ma H,Harrison ML,Geahlen RL

更新日期：2006-05-01 00:00:00

abstract：:Protein kinase activities were measured in Rous sarcoma virus-infected baby hamster kidney (BHK) cells that express v-src (BHK [v-src]) and compared with those of revertant and control BHK cells. We observed about a fivefold-higher tyrosine phosphorylating activity in BHK (v-src) cell extracts, which was due to src bu...

journal_title：Molecular and cellular biology

authors： Clinton GM,Roskoski R Jr

更新日期：1984-05-01 00:00:00

abstract：:Most mammalian genes produce transcripts whose 3' ends are processed at multiple alternative positions by cleavage/polyadenylation (CPA). Poly(A) site cleavage frequently occurs cotranscriptionally and is facilitated by CPA factor binding to the RNA polymerase II (Pol II) C-terminal domain (CTD) phosphorylated on Ser2...

journal_title：Molecular and cellular biology

authors： Fusby B,Kim S,Erickson B,Kim H,Peterson ML,Bentley DL

更新日期：2015-11-02 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 epidermal growth factor (EGF) receptor is the functional target of the mitogen EGF and the cellular homolog of the avian erythroblastosis virus erbB oncogene product. Regulation of expression of the proto-oncogene encoding the EGF receptor can be elucidated by studying the structure and function of the gene promot...

journal_title：Molecular and cellular biology

authors： Johnson AC,Jinno Y,Merlino GT

更新日期：1988-10-01 00:00:00

abstract：:SR proteins are essential for pre-mRNA splicing in vitro, act early in the splicing pathway, and can influence alternative splice site choice. Here we describe the isolation of both dominant and loss-of-function alleles of B52, the gene for a Drosophila SR protein. The allele B52ED was identified as a dominant second-...

journal_title：Molecular and cellular biology

authors： Peng X,Mount SM

更新日期：1995-11-01 00:00:00

abstract：:Unlike the DNA of higher eucaryotes, the DNA of Saccharomyces cerevisiae (bakers' yeast) is not methylated. Introduction of the Escherichia coli dam gene into yeast cells results in methylation of the N-6 position of adenine. The UV excision repair system of yeast cells specifically responds to the methylation, sugges...

journal_title：Molecular and cellular biology

authors： Hoekstra MF,Malone RE

更新日期：1986-10-01 00:00:00

abstract：:Although both osteoblasts and adipocytes have a common origin, i.e., mesenchymal cells, the molecular mechanisms that define the direction of two different lineages are presently unknown. In this study, we investigated the role of a transcription factor, CCAAT/enhancer binding protein beta (C/EBPbeta), and its isoform...

journal_title：Molecular and cellular biology

authors： Hata K,Nishimura R,Ueda M,Ikeda F,Matsubara T,Ichida F,Hisada K,Nokubi T,Yamaguchi A,Yoneda T

更新日期：2005-03-01 00:00:00

abstract：:The Drosophila extra sex combs (esc) protein, a member of the Polycomb group (PcG), is a transcriptional repressor of homeotic genes. Genetic studies have shown that esc protein is required in early embryos at about the time that other PcG proteins become engaged in homeotic gene repression. The esc protein consists p...

journal_title：Molecular and cellular biology

authors： Ng J,Li R,Morgan K,Simon J

更新日期：1997-11-01 00:00:00

abstract：:Activins and other members of the transforming growth factor beta family play a critical role in morphological changes of the epidermis that require epithelial cell movement. We investigated the molecular pathways in the transmission of activin signals that lead to actin reorganization and epithelial cell migration. W...

journal_title：Molecular and cellular biology

authors： Zhang L,Deng M,Parthasarathy R,Wang L,Mongan M,Molkentin JD,Zheng Y,Xia Y

更新日期：2005-01-01 00:00:00

abstract：:The reciprocal expression of GATA-1 and GATA-2 during hematopoiesis is an important determinant of red blood cell development. Whereas Gata2 is preferentially transcribed early in hematopoiesis, elevated GATA-1 levels result in GATA-1 occupancy at sites upstream of the Gata2 locus and transcriptional repression. GATA-...

journal_title：Molecular and cellular biology

authors： Grass JA,Jing H,Kim SI,Martowicz ML,Pal S,Blobel GA,Bresnick EH

更新日期：2006-10-01 00:00:00

abstract：:HIRA-like (Hir) proteins are evolutionarily conserved and are implicated in the assembly of repressive chromatin. In Saccharomyces cerevisiae, Hir proteins contribute to the function of centromeres. However, S. cerevisiae has point centromeres that are structurally different from the complex centromeres of metazoans. ...

journal_title：Molecular and cellular biology

authors： Blackwell C,Martin KA,Greenall A,Pidoux A,Allshire RC,Whitehall SK

更新日期：2004-05-01 00:00:00

abstract：:Obesity and type 2 diabetes are characterized by insulin resistance. Mice lacking the protein-tyrosine phosphatase PTP1B in all tissues are hypersensitive to insulin but also have diminished fat stores. Because adiposity affects insulin sensitivity, the extent to which PTP1B directly regulates glucose homeostasis has ...

journal_title：Molecular and cellular biology

authors： Delibegovic M,Bence KK,Mody N,Hong EG,Ko HJ,Kim JK,Kahn BB,Neel BG

更新日期：2007-11-01 00:00:00

abstract：:The Atm protein kinase is central to the DNA double-strand break response in mammalian cells. After irradiation, dimeric Atm undergoes autophosphorylation at Ser 1981 and dissociates into active monomers. Atm activation is stimulated by expression of the Mre11/Rad50/nibrin complex. Previously, we showed that a C-termi...

journal_title：Molecular and cellular biology

authors： Cerosaletti K,Wright J,Concannon P

更新日期：2006-03-01 00:00:00

abstract：:Enamel mineralization is accompanied by the release of protons into the extracellular matrix, which is buffered to regulate the pH value in the local microenvironment. The present study aimed to investigate the role of microRNA 224 (miR-224) as a regulator of SLC4A4 and CFTR, encoding the key buffering ion transporter...

journal_title：Molecular and cellular biology

authors： Fan Y,Zhou Y,Zhou X,Sun F,Gao B,Wan M,Zhou X,Sun J,Xu X,Cheng L,Crane J,Zheng L

更新日期：2015-08-01 00:00:00

abstract：:The Saccharomyces cerevisiae RAD18 gene is essential for postreplication repair but is not required for homologous recombination (HR), which is the major double-strand break (DSB) repair pathway in yeast. Accordingly, yeast rad18 mutants are tolerant of camptothecin (CPT), a topoisomerase I inhibitor, which induces DS...

journal_title：Molecular and cellular biology

authors： Saberi A,Hochegger H,Szuts D,Lan L,Yasui A,Sale JE,Taniguchi Y,Murakawa Y,Zeng W,Yokomori K,Helleday T,Teraoka H,Arakawa H,Buerstedde JM,Takeda S

更新日期：2007-04-01 00:00:00

abstract：:Transcription factor Nrf2 (NF-E2-related factor 2) is essential for oxidative and electrophilic stress responses. While it has been well characterized that Nrf2 activity is tightly regulated at the protein level through proteasomal degradation via Keap1 (Kelch-like ECH-associated protein 1)-mediated ubiquitination, no...

journal_title：Molecular and cellular biology

authors： Suzuki T,Shibata T,Takaya K,Shiraishi K,Kohno T,Kunitoh H,Tsuta K,Furuta K,Goto K,Hosoda F,Sakamoto H,Motohashi H,Yamamoto M

更新日期：2013-06-01 00:00:00

abstract：:Tax1, a potent activator of human T-cell lymphotropic virus type 1 (HTLV-1) transcription, has been shown to modulate expression of many cellular genes. Tax1 does not bind DNA directly but regulates transcription through protein-protein interactions with sequence-specific transcription factors. Using the yeast two-hyb...

journal_title：Molecular and cellular biology

authors： Pise-Masison CA,Dittmer J,Clemens KE,Brady JN

更新日期：1997-03-01 00:00:00

abstract：:NMYC is a gene whose amplification and overexpression have been implicated in the generation of certain human malignancies. Little is known of how the expression of NMYC is normally controlled. We have therefore characterized transcription from the gene and the structure and stability of the resulting mRNAs. Transcrip...

journal_title：Molecular and cellular biology

authors： Stanton LW,Bishop JM

更新日期：1987-12-01 00:00:00

abstract：:Ure2p of Saccharomyces cerevisiae normally functions in blocking utilization of a poor nitrogen source when a good nitrogen source is available. The non-Mendelian genetic element [URE3] is a prion (infectious protein) form of Ure2p, so that overexpression of Ure2p induces the de novo appearance of infectious [URE3]. E...

journal_title：Molecular and cellular biology

authors： Maddelein ML,Wickner RB

更新日期：1999-06-01 00:00:00

abstract：:The chimeric oncoprotein E2A-HLF, generated by the t(17;19) chromosomal translocation in pro-B-cell acute lymphoblastic leukemia, incorporates the transactivation domains of E2A and the basic leucine zipper (bZIP) DNA-binding and protein dimerization domain of HLF (hepatic leukemic factor). The ability of E2A-HLF to p...

journal_title：Molecular and cellular biology

authors： Inukai T,Inaba T,Ikushima S,Look AT

更新日期：1998-10-01 00:00:00

abstract：:In cardiac ischemia-reperfusion injury, reactive oxygen species (ROS) generation and upregulation of the hypoxia-inducible protein BNIP3 result in mitochondrial permeabilization, but impairment in autophagic removal of damaged mitochondria provokes programmed cardiomyocyte death. BNIP3 expression and ROS generation re...

journal_title：Molecular and cellular biology

authors： Ma X,Liu H,Murphy JT,Foyil SR,Godar RJ,Abuirqeba H,Weinheimer CJ,Barger PM,Diwan A

更新日期：2015-03-01 00:00:00

abstract：:EGL-15 is a fibroblast growth factor receptor in the nematode Caenorhabditis elegans. Components that mediate EGL-15 signaling have been identified via mutations that confer a Clear (Clr) phenotype, indicative of hyperactivity of this pathway, or a suppressor-of-Clr (Soc) phenotype, indicative of reduced pathway activ...

journal_title：Molecular and cellular biology

authors： Schutzman JL,Borland CZ,Newman JC,Robinson MK,Kokel M,Stern MJ

更新日期：2001-12-01 00:00:00

abstract：:With v-yes DNA as the probe, a human cDNA library made from placental RNA was screened under relaxed conditions, and DNA clones derived from a novel genetic locus, termed lyn, were obtained. Nucleotide sequencing revealed that lyn could encode a novel tyrosine kinase that was very similar to mouse T-lymphocyte-specifi...

journal_title：Molecular and cellular biology

authors： Yamanashi Y,Fukushige S,Semba K,Sukegawa J,Miyajima N,Matsubara K,Yamamoto T,Toyoshima K

更新日期：1987-01-01 00:00:00

abstract：:Proper control of NaCl excretion in the kidney is central to bodily functions, yet many mechanisms that regulate reabsorption of sodium and chloride in the kidney remain incompletely understood. Here, we identify an important role played by the intracellular sorting receptor SORLA (sorting protein-related receptor wit...

journal_title：Molecular and cellular biology

authors： Reiche J,Theilig F,Rafiqi FH,Carlo AS,Militz D,Mutig K,Todiras M,Christensen EI,Ellison DH,Bader M,Nykjaer A,Bachmann S,Alessi D,Willnow TE

更新日期：2010-06-01 00:00:00

abstract：:Phosphorylation is believed to be one of the mechanisms by which p53 becomes activated or stabilized in response to cellular stress. Previously, p53 was shown to interact with three components of transcription factor IIH (TFIIH): excision repair cross-complementing types 2 and 3 (ERCC2 and ERCC3) and p62. This communi...

journal_title：Molecular and cellular biology

authors： Lu H,Fisher RP,Bailey P,Levine AJ

更新日期：1997-10-01 00:00:00

abstract：:Copper is an essential cofactor of two mitochondrial enzymes: cytochrome c oxidase (COX) and Cu-Zn superoxide dismutase (Sod1p). Copper incorporation into these enzymes is facilitated by metallochaperone proteins which probably use copper from a mitochondrial matrix-localized pool. Here we describe a novel conserved m...

journal_title：Molecular and cellular biology

authors： Horn D,Al-Ali H,Barrientos A

更新日期：2008-07-01 00:00:00