Phosphorylation of eukaryotic translation initiation factor 2alpha coordinates rRNA transcription and translation inhibition during endoplasmic reticulum stress.

abstract：:Signaling downstream of mechanistic target of rapamycin complexes 1 and 2 (mTORC1 and mTORC2) controls specific and distinct aspects of insulin action and nutrient homeostasis in an interconnected and as yet unclear way. Mice lacking the mTORC1 substrate S6 kinase 1 (S6K1) maintain proper glycemic control with a high-...

journal_title：Molecular and cellular biology

authors： Treins C,Alliouachene S,Hassouna R,Xie Y,Birnbaum MJ,Pende M

更新日期：2012-10-01 00:00:00

abstract：:Saccharomyces cerevisiae mutant E124 was selected in a visual screen based on elongated cell shape. Genetic analysis showed that E124 contains two separate mutations, pps1-1 and elm4-1, each causing a distinct phenotype inherited as a single-gene trait. In rich medium, pps1-1 by itself causes increased doubling time b...

journal_title：Molecular and cellular biology

authors： Blacketer MJ,Madaule P,Myers AM

更新日期：1994-07-01 00:00:00

abstract：:The male-specific-lethal (MSL) proteins in Drosophila melanogaster serve to adjust gene expression levels in male flies containing a single X chromosome to equal those in females with a double dose of X-linked genes. Together with noncoding roX RNA, MSL proteins form the "dosage compensation complex" (DCC), which inte...

journal_title：Molecular and cellular biology

authors： Morales V,Regnard C,Izzo A,Vetter I,Becker PB

更新日期：2005-07-01 00:00:00

abstract：:The retinoblastoma binding protein 1 (RBP1) appears to be an important factor in the repression of E2F-dependent transcription by the retinoblastoma protein (pRB) family. The recent identification of the breast carcinoma associated antigen (BCAA) as an RBP1-like protein led us to investigate its biological properties ...

journal_title：Molecular and cellular biology

authors： Binda O,Roy JS,Branton PE

更新日期：2006-03-01 00:00:00

abstract：:Multiple isoforms of the protein tyrosine phosphatase CD45 are expressed on the surface of human T cells. Interestingly, the expression of these isoforms has been shown to vary significantly upon T-cell activation. In this report, we describe a novel cell line-based model system in which we can mimic the activation-in...

journal_title：Molecular and cellular biology

authors： Lynch KW,Weiss A

更新日期：2000-01-01 00:00:00

abstract：:Ecdysoneless (ECD) is an evolutionarily conserved protein whose germ line deletion is embryonic lethal. Deletion of Ecd in cells causes cell cycle arrest, which is rescued by exogenous ECD, demonstrating a requirement of ECD for normal mammalian cell cycle progression. However, the exact mechanism by which ECD regulat...

journal_title：Molecular and cellular biology

authors： Mir RA,Bele A,Mirza S,Srivastava S,Olou AA,Ammons SA,Kim JH,Gurumurthy CB,Qiu F,Band H,Band V

更新日期：2015-12-28 00:00:00

abstract：:The levels of the A, B, and C subunits of protein phosphatase 2A in extracts from synchronized embryonic bovine tracheal cells were determined by immunoblotting with subunit-specific antibodies. A constant amount of each subunit was found in resting cells as well as in growing cells from all stages of the cell cycle. ...

journal_title：Molecular and cellular biology

authors： Ruediger R,Van Wart Hood JE,Mumby M,Walter G

更新日期：1991-08-01 00:00:00

abstract：:Sophisticated models for the regulation of mitotic entry are lacking for human cells. Inactivating human cyclin A/Cdk2 complexes through diverse approaches delays mitotic entry and promotes inhibitory phosphorylation of Cdk1 on tyrosine 15, a modification performed by Wee1. We show here that cyclin A/Cdk2 complexes ph...

journal_title：Molecular and cellular biology

authors： Li C,Andrake M,Dunbrack R,Enders GH

更新日期：2010-01-01 00:00:00

abstract：:The onc gene (v-fes) of the acutely transforming feline sarcoma virus (Snyder-Theilen strain) has homologous cellular sequences (c-fes) in all vertebrate species, including humans. We isolated from a human DNA library recombinant phages containing overlapping c-fes sequences. The human c-fes locus spans a region of 3....

journal_title：Molecular and cellular biology

authors： Franchini G,Gelmann EP,Dalla-Favera R,Gallo RC,Wong-Staal F

更新日期：1982-08-01 00:00:00

abstract：:Protein kinase C theta (PKC theta) is unique among PKC isozymes in its translocation to the center of the immune synapse in T cells and its unique downstream signaling. Here we show that the hematopoietic protein tyrosine phosphatase (HePTP) also accumulates in the immune synapse in a PKC theta-dependent manner upon a...

journal_title：Molecular and cellular biology

authors： Nika K,Charvet C,Williams S,Tautz L,Bruckner S,Rahmouni S,Bottini N,Schoenberger SP,Baier G,Altman A,Mustelin T

更新日期：2006-03-01 00:00:00

abstract：:The Saccharomyces cerevisiae Srs2 protein is involved in DNA repair and recombination. In order to gain better insight into the roles of Srs2, we performed a screen to identify mutations that are synthetically lethal with an srs2 deletion. One of them is a mutated allele of the ULP1 gene that encodes a protease specif...

journal_title：Molecular and cellular biology

authors： Soustelle C,Vernis L,Fréon K,Reynaud-Angelin A,Chanet R,Fabre F,Heude M

更新日期：2004-06-01 00:00:00

abstract：:Ras proteins can activate at least three classes of downstream target proteins: Raf kinases, phosphatidylinositol-3 phosphate (PI3) kinase, and Ral-specific guanine nucleotide exchange factors (Ral-GEFs). In NIH 3T3 cells, activated Ral-GEFs contribute to Ras-induced cell proliferation and oncogenic transformation by ...

journal_title：Molecular and cellular biology

authors： Goi T,Rusanescu G,Urano T,Feig LA

更新日期：1999-03-01 00:00:00

abstract：:ATR kinase activation requires the recruitment of the ATR-ATRIP and RAD9-HUS1-RAD1 (9-1-1) checkpoint complexes to sites of DNA damage or replication stress. Replication protein A (RPA) bound to single-stranded DNA is at least part of the molecular recognition element that recruits these checkpoint complexes. We have ...

journal_title：Molecular and cellular biology

authors： Xu X,Vaithiyalingam S,Glick GG,Mordes DA,Chazin WJ,Cortez D

更新日期：2008-12-01 00:00:00

abstract：:The cytotoxic serine protease B (CSP-B) gene is activated during cytotoxic T-lymphocyte maturation. In this report, we demonstrate that the PEER T-cell line (bearing gamma/delta T-cell receptors) accumulates CSP-B mRNA following exposure to 12-O-tetradecanoylphorbol-13-acetate (TPA) and N6-2'-O-dibutyryladenosine 3',5...

journal_title：Molecular and cellular biology

authors： Hanson RD,Ley TJ

更新日期：1990-11-01 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：:In the budding yeast Saccharomyces cerevisiae, mutations in the essential gene CDC1 cause defects in Golgi inheritance and actin polarization. However, the biochemical function of Cdc1p is unknown. Previous work showed that cdc1 mutants accumulate intracellular Ca(2+) and display enhanced sensitivity to the extracellu...

journal_title：Molecular and cellular biology

authors： Losev E,Papanikou E,Rossanese OW,Glick BS

更新日期：2008-05-01 00:00:00

abstract：:Growth factor independence 1B (GFI1B) coordinates assembly of transcriptional repressor complexes comprised of corepressors and histone-modifying enzymes to control gene expression programs governing lineage allocation in hematopoiesis. Enforced expression of GFI1B in K562 erythroleukemia cells favors erythroid over m...

journal_title：Molecular and cellular biology

authors： McClellan D,Casey MJ,Bareyan D,Lucente H,Ours C,Velinder M,Singer J,Lone MD,Sun W,Coria Y,Mason CC,Engel ME

更新日期：2019-06-13 00:00:00

abstract：:We describe experiments which demonstrated that the simian virus 40 (SV40) enhancer affects certain transcriptional units differently. We also found that a specific enhancer-transcriptional unit interaction can be regulated by trans-acting factors. Using transient assays, we examined the effects of the SV40 enhancer o...

journal_title：Molecular and cellular biology

authors： Robbins PD,Rio DC,Botchan MR

更新日期：1986-04-01 00:00:00

abstract：:Box C/D snoRNPs, factors essential for ribosome biogenesis, are proposed to be assembled in the nucleoplasm before localizing to the nucleolus. However, recent work demonstrated the involvement of nuclear export factors in this process, suggesting that export may take place. Here we show that there are distinct distri...

journal_title：Molecular and cellular biology

authors： Watkins NJ,Lemm I,Lührmann R

更新日期：2007-10-01 00:00:00

abstract：:A cDNA clone which encodes a truncation form of the gamma subtype of the retinoic acid receptor (RAR gamma) has been isolated. The mutant RAR gamma (RAR gamma Bm382) has lost its 65 C-terminal amino acids, thus truncating a part of the dimerization and activation domains. By using a reverse transcription-coupled PCR t...

journal_title：Molecular and cellular biology

authors： Matsui T,Sashihara S

更新日期：1995-04-01 00:00:00

abstract：:Bach2 is a B-cell- and neuron-specific transcription repressor that forms heterodimers with the Maf-related oncoproteins. We show here that Bach2 activates transcription by interacting with its novel partner MAZR. MAZR was isolated by the yeast two-hybrid screen using the BTB/POZ domain of Bach2 as bait. Besides the B...

journal_title：Molecular and cellular biology

authors： Kobayashi A,Yamagiwa H,Hoshino H,Muto A,Sato K,Morita M,Hayashi N,Yamamoto M,Igarashi K

更新日期：2000-03-01 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：:For proper male sexual differentiation, anti-Müllerian hormone (AMH) must be tightly regulated during embryonic development to promote regression of the Müllerian duct. However, the molecular mechanisms specifying the onset of AMH in male mammals are not yet clearly defined. A DNA-binding element for the steroidogenic...

journal_title：Molecular and cellular biology

authors： De Santa Barbara P,Bonneaud N,Boizet B,Desclozeaux M,Moniot B,Sudbeck P,Scherer G,Poulat F,Berta P

更新日期：1998-11-01 00:00:00

abstract：:Beta-catenin plays multiple roles in cell-cell adhesion and Wnt signal transduction. Through the Wnt signal, the cellular level of beta-catenin is constitutively regulated by the multicomponent destruction complex containing glycogen synthase kinase 3beta, axin, and adenomatous polyposis coli. Here, we present multipl...

journal_title：Molecular and cellular biology

authors： Thyssen G,Li TH,Lehmann L,Zhuo M,Sharma M,Sun Z

更新日期：2006-12-01 00:00:00

abstract：:The mammalian signal recognition particle (SRP) is a small cytoplasmic ribonucleoprotein required for the cotranslational targeting of secretory proteins to the endoplasmic reticulum membrane. The heterodimeric protein subunit SRP9/14 was previously shown to be essential for SRP to cause pausing in the elongation of s...

journal_title：Molecular and cellular biology

authors： Strub K,Moss J,Walter P

更新日期：1991-08-01 00:00:00

abstract：:The nuclear enzyme DNA topoisomerase II catalyzes the breakage and resealing of duplex DNA and plays an important role in several genetic processes. It also mediates the DNA cleavage activity and cytotoxicity of clinically important anticancer agents such as etoposide. We have examined the activity of topoisomerase II...

journal_title：Molecular and cellular biology

authors： Chow KC,Ross WE

更新日期：1987-09-01 00:00:00

abstract：:The stem-loop in the 5' untranslated region (UTR) of collagen α1(I) and α2(I) mRNAs (5'SL) is the key element regulating their stability and translation. Stabilization of collagen mRNAs is the predominant mechanism for high collagen expression in fibrosis. LARP6 binds the 5'SL of α1(I) and α2(I) mRNAs with high affini...

journal_title：Molecular and cellular biology

authors： Challa AA,Stefanovic B

更新日期：2011-09-01 00:00:00

abstract：:The 5'-flanking DNA sequences involved in the specific and efficient transcription of the polyoma virus early region have been investigated. Sequence requirements for efficient in vivo expression differed from those in vitro. Deletion of DNA located between 200 and 400 base pairs before the principal cap sites severel...

journal_title：Molecular and cellular biology

authors： Jat P,Novak U,Cowie A,Tyndall C,Kamen R

更新日期：1982-07-01 00:00:00

abstract：:The PHR1 gene of Saccharomyces cerevisiae encodes a photolyase which repairs specifically and exclusively pyrimidine dimers, the most frequent lesions induced in DNA by far-UV radiation. We have asked whether expression of PHR1 is modulated in response to UV-induced DNA damage and to DNA-damaging agents that induce le...

journal_title：Molecular and cellular biology

authors： Sebastian J,Kraus B,Sancar GB

更新日期：1990-09-01 00:00:00

abstract：:Eukaryotic elongation factor 1 alpha 2 (eEF1A2) is a transforming gene product that is highly expressed in human tumors of the ovary, lung, and breast. eEF1A2 also stimulates actin remodeling, and the expression of this factor is sufficient to induce the formation of filopodia, long cellular processes composed of bund...

journal_title：Molecular and cellular biology

authors： Jeganathan S,Morrow A,Amiri A,Lee JM

更新日期：2008-07-01 00:00:00