Heat shock protein 90 modulates the unfolded protein response by stabilizing IRE1alpha.

abstract：:Smad proteins play a key role in the intracellular signaling of the transforming growth factor beta (TGF-beta) superfamily of extracellular polypeptides that initiate signaling from the cell surface through serine/threonine kinase receptors. A subclass of Smad proteins, including Smad6 and Smad7, has been shown to fun...

journal_title：Molecular and cellular biology

authors： Datta PK,Moses HL

更新日期：2000-05-01 00:00:00

abstract：:We have isolated and subcloned three separate segments of human DNA which share strong sequence homology with a previously sequenced gene encoding a type I keratin, K14 (50 kilodaltons). Restriction endonuclease mapping has demonstrated that these three genes are tightly linked chromosomally, whereas the K14 gene appe...

journal_title：Molecular and cellular biology

authors： RayChaudhury A,Marchuk D,Lindhurst M,Fuchs E

更新日期：1986-02-01 00:00:00

abstract：:The retinoblastoma tumor suppressor protein (RB) is a negative regulator of the cell cycle that inhibits both G(1) and S-phase progression. While RB-mediated G(1) inhibition has been extensively studied, the mechanism utilized for S-phase inhibition is unknown. To delineate the mechanism through which RB inhibits DNA ...

journal_title：Molecular and cellular biology

authors： Sever-Chroneos Z,Angus SP,Fribourg AF,Wan H,Todorov I,Knudsen KE,Knudsen ES

更新日期：2001-06-01 00:00:00

abstract：:A fragment of the mouse mammary tumor virus (MMTV) promoter was reconstituted from pure histones into a dinucleosome with uniquely positioned octamer cores. Core boundaries for the in vitro-assembled dinucleosome corresponded to the observed in vivo phasing pattern for long terminal repeat nucleosomes A and B. Nuclear...

journal_title：Molecular and cellular biology

authors： Archer TK,Cordingley MG,Wolford RG,Hager GL

更新日期：1991-02-01 00:00:00

abstract：:Ribosomal (r) proteins encoded by polyadenylated RNA were specifically precipitated in vitro from polysomes by using antibodies raised against characterized Drosophila melanogaster r proteins. The immuno-purified mRNA in the polysome complex was used to prepare cDNA with which to probe a D. melanogaster genomic librar...

journal_title：Molecular and cellular biology

authors： Burns DK,Stark BC,Macklin MD,Chooi WY

更新日期：1984-12-01 00:00:00

abstract：:The distal region (-830 to -720 bp) of the rat whey acidic protein (WAP) gene contains a composite response element (CoRE), which has been demonstrated previously to confer mammary gland-specific and hormonally regulated WAP gene expression. Point mutations in the binding sites for specific transcription factors prese...

journal_title：Molecular and cellular biology

authors： Mukhopadhyay SS,Wyszomierski SL,Gronostajski RM,Rosen JM

更新日期：2001-10-01 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：:Microinjection of p21Ha-ras proteins into Xenopus laevis oocytes induces a rapid increase of 1,2-diacylglycerol (DAG) levels. The observed alterations in DAG levels were consistent with the ability of the protein to induce maturation, measured by germinal vesicle breakdown (GVBD). Both the increase in DAG levels and G...

journal_title：Molecular and cellular biology

authors： Lacal JC

更新日期：1990-01-01 00:00:00

abstract：:The retinoblastoma tumor suppressor protein (RB) is a potent inhibitor of cell proliferation. RB is expressed throughout the cell cycle, but its antiproliferative activity is neutralized by phosphorylation during the G(1)/S transition. RB plays an essential role in the G(1) arrest induced by a variety of growth inhibi...

journal_title：Molecular and cellular biology

authors： Knudsen KE,Booth D,Naderi S,Sever-Chroneos Z,Fribourg AF,Hunton IC,Feramisco JR,Wang JY,Knudsen ES

更新日期：2000-10-01 00:00:00

abstract：:The receptors for thyroid hormone (T3R), all-trans-retinoic acid (RAR), and 9-cis-retinoic acid (RXR) bind DNA response elements as homo- and heterodimers. The ligand-binding domains of these receptors contain nine conserved heptads proposed to play a role in dimerization. Mutant receptors with changes in the first or...

journal_title：Molecular and cellular biology

authors： Au-Fliegner M,Helmer E,Casanova J,Raaka BM,Samuels HH

更新日期：1993-09-01 00:00:00

abstract：:The mitogen-activated protein (MAP) kinases represent one of the most important classes of signaling cascades that are used by eukaryotic cells to sense extracellular signals. One of the major responses to these cascades is a change in cellular gene expression profiles mediated through the direct targeting of transcri...

journal_title：Molecular and cellular biology

authors： Zhang L,Yang SH,Sharrocks AD

更新日期：2007-04-01 00:00:00

abstract：:A transcriptional initiator (Inr) for mammalian RNA polymerase II can be defined as a DNA sequence element that overlaps a transcription start site and is sufficient for (i) determining the start site location in a promoter that lacks a TATA box and (ii) enhancing the strength of a promoter that contains a TATA box. W...

journal_title：Molecular and cellular biology

authors： Javahery R,Khachi A,Lo K,Zenzie-Gregory B,Smale ST

更新日期：1994-01-01 00:00:00

abstract：:cyt-PTP epsilon is a naturally occurring nonreceptor form of the receptor-type protein tyrosine phosphatase (PTP) epsilon. As such, cyt-PTP epsilon enables analysis of phosphatase regulation in the absence of extracellular domains, which participate in dimerization and inactivation of the receptor-type phosphatases re...

journal_title：Molecular and cellular biology

authors： Toledano-Katchalski H,Tiran Z,Sines T,Shani G,Granot-Attas S,den Hertog J,Elson A

更新日期：2003-08-01 00:00:00

abstract：:The CACCC-box binding protein erythroid Krüppel-like factor (EKLF/KLF1) is a master regulator that directs the expression of many important erythroid genes. We have previously shown that EKLF drives transcription of the gene for a second KLF, basic Krüppel-like factor, or KLF3. We have now tested the in vivo role of K...

journal_title：Molecular and cellular biology

authors： Funnell AP,Norton LJ,Mak KS,Burdach J,Artuz CM,Twine NA,Wilkins MR,Power CA,Hung TT,Perdomo J,Koh P,Bell-Anderson KS,Orkin SH,Fraser ST,Perkins AC,Pearson RC,Crossley M

更新日期：2012-08-01 00:00:00

abstract：:Each of two severely defective mouse kappa-chain genes has acquired a different intracisternal A particle (IAP) element within one of its introns. One IAP element generated 6-base-pair direct repeats upon insertion. In contrast, the other IAP element was not flanked by direct repeats and was missing a single nucleotid...

journal_title：Molecular and cellular biology

authors： Hawley RG,Shulman MJ,Hozumi N

更新日期：1984-12-01 00:00:00

abstract：:Progression through mitosis requires the inactivation of the protein kinase activity of the p34cdc2-cyclin complex by a mechanism involving the degradation of cyclin. We have examined the stability in Xenopus egg extracts of radiolabeled Xenopus or sea urchin B-type cyclins synthesized in reticulocyte lysates. Xenopus...

journal_title：Molecular and cellular biology

authors： van der Velden HM,Lohka MJ

更新日期：1993-03-01 00:00:00

abstract：:The turnover of the colony-stimulating factor 1 receptor (CSF-1R), the c-fms proto-oncogene product, is accelerated by ligand binding or by activators of protein kinase C (PKC), such as the phorbol ester 12-O-tetradecanoylphorbol-13-acetate (TPA). The mechanisms of ligand- and TPA-induced downmodulation were shown to ...

journal_title：Molecular and cellular biology

authors： Downing JR,Roussel MF,Sherr CJ

更新日期：1989-07-01 00:00:00

abstract：:The nuclear receptor steroidogenic factor 1 (SF-1) is essential for adrenal development and steroidogenesis. The atypical orphan nuclear receptor Dax-1 binds to SF-1 and represses SF-1 target genes. Paradoxically, however, loss-of-function mutations of Dax-1 also cause adrenal hypoplasia, suggesting that Dax-1 may fun...

journal_title：Molecular and cellular biology

authors： Xu B,Yang WH,Gerin I,Hu CD,Hammer GD,Koenig RJ

更新日期：2009-04-01 00:00:00

abstract：:DNA supercoiling in the chloroplast of the unicellular green alga Chlamydomonas reinhardtii was found to change with a diurnal rhythm in cells growing in alternating 12-h dark-12-h light periods. Highest and lowest DNA superhelicities occurred at the beginning and towards the end of the 12-h light periods, respectivel...

journal_title：Molecular and cellular biology

authors： Salvador ML,Klein U,Bogorad L

更新日期：1998-12-01 00:00:00

abstract：:Circadian clocks keep time via gene expression feedback loops that are controlled by time-of-day-specific changes in the synthesis, activity, and degradation of transcription factors. Within the Drosophila melanogaster circadian clock, DOUBLETIME (DBT) kinase is necessary for the phosphorylation of PERIOD (PER), a tra...

journal_title：Molecular and cellular biology

authors： Yu W,Zheng H,Price JL,Hardin PE

更新日期：2009-03-01 00:00:00

abstract：:The Ki-67 protein is widely used as a tumor proliferation marker. However, whether Ki-67 affects cell cycle progression has been controversial. Here we demonstrate that depletion of Ki-67 in human hTERT-RPE1, WI-38, IMR90, and hTERT-BJ cell lines and primary fibroblast cells slowed entry into S phase and coordinately ...

journal_title：Molecular and cellular biology

authors： Sun X,Bizhanova A,Matheson TD,Yu J,Zhu LJ,Kaufman PD

更新日期：2017-08-11 00:00:00

abstract：:Expression of the Cyp 2d-9 (steroid 16 alpha-hydroxylase) gene in mouse liver is male specific in such Mus musculus domesticus strains as FVB/N, whereas the corresponding P450 genes in the wild mouse species Mus spretus are not sex specific in their expression. These parental differences in the gene expressions were i...

journal_title：Molecular and cellular biology

authors： Sueyoshi T,Kobayashi R,Nishio K,Aida K,Moore R,Wada T,Handa H,Negishi M

更新日期：1995-08-01 00:00:00

abstract：:There are nearly 50 forkhead (FOX) transcription factors encoded in the human genome and, due to sharing a common DNA binding domain, they are all thought to bind to similar DNA sequences. It is therefore unclear how these transcription factors are targeted to specific chromatin regions to elicit specific biological e...

journal_title：Molecular and cellular biology

authors： Chen X,Müller GA,Quaas M,Fischer M,Han N,Stutchbury B,Sharrocks AD,Engeland K

更新日期：2013-01-01 00:00:00

abstract：:To investigate in vivo roles of a murine hypothalamic homeobox gene, Bsx, we generated and analyzed two mutant alleles, Bsx(DeltaHD) and Bsx(lacZ). Bsx(DeltaHD) lacks the homeodomain, and Bsx(lacZ) is an insertion of a lacZ reporter gene. Bsx-lacZ expression was detected in the hypothalamus and pineal gland and reiter...

journal_title：Molecular and cellular biology

authors： McArthur T,Ohtoshi A

更新日期：2007-07-01 00:00:00

abstract：:Sporulation in Saccharomyces cerevisiae normally occurs only in MATa/MAT alpha diploids. We show that mutations in RME1 bypassed the requirements for both a and alpha mating type information in sporulation and therefore allowed MATa/MATa and MAT alpha/MAT alpha diploids to sporulate. RME1 was located on chromosome VII...

journal_title：Molecular and cellular biology

authors： Rine J,Sprague GF Jr,Herskowitz I

更新日期：1981-10-01 00:00:00

abstract：:Analysis of a T-cell antigen receptor (TCR) alpha promoter from a variable gene segment (V) revealed a critical GT box element which is also found in upstream regions of several V alpha genes, TCR enhancer, and regulatory elements of other genes. This element is necessary for TCR gene expression and binds several prot...

journal_title：Molecular and cellular biology

authors： Kingsley C,Winoto A

更新日期：1992-10-01 00:00:00

abstract：:Intron-encoded U17a and U17b RNAs are members of the H/ACA-box class of small nucleolar RNAs (snoRNAs) participating in rRNA processing and modification. We have investigated the organization and expression of the U17 locus in human cells and found that intronic U17a and U17b sequences are transcribed as part of the t...

journal_title：Molecular and cellular biology

authors： Pelczar P,Filipowicz W

更新日期：1998-08-01 00:00:00

abstract：:The biosynthesis of influenza virus hemagglutinin (HA) and its translocation across microsomal membranes were studied in a mammalian cell-free system. All forms of HA could be cotranslationally translocated with high efficiency. However, only truncated forms of HA were translocated after protein synthesis has been ter...

journal_title：Molecular and cellular biology

authors： Chao CC,Bird P,Gething MJ,Sambrook J

更新日期：1987-10-01 00:00:00

abstract：:Mice deficient in the transmembrane protein tyrosine phosphatase CD45 exhibit a block in thymocyte development. To determine whether the block in thymocyte development was due to the inability to dephosphorylate the inhibitory phosphorylation site (Y505) in p56(lck) (Lck), we generated CD45-deficient mice that express...

journal_title：Molecular and cellular biology

authors： Seavitt JR,White LS,Murphy KM,Loh DY,Perlmutter RM,Thomas ML

更新日期：1999-06-01 00:00:00

abstract：:In this report, we document an unusual mode of tissue-enriched gene expression that is primarily mediated by alternative and inefficient splicing. We have analyzed posttranscriptional regulation of the Drosophila erect wing gene, which provides a vital neuronal function and is essential for the formation of certain mu...

journal_title：Molecular and cellular biology

authors： Koushika SP,Soller M,DeSimone SM,Daub DM,White K

更新日期：1999-06-01 00:00:00