DNA primase-DNA polymerase alpha from simian cells: sequence specificity of initiation sites on simian virus 40 DNA.

abstract：:Precisely regulated expression of oncogenes and tumor suppressor genes is essential for normal development, and deregulated expression can lead to cancer. The human N-myc gene normally is expressed in only a subset of fetal epithelial tissues, and its expression is extinguished in all adult tissues except transiently ...

journal_title：Molecular and cellular biology

authors： Sivak LE,Pont-Kingdon G,Le K,Mayr G,Tai KF,Stevens BT,Carroll WL

更新日期：1999-01-01 00:00:00

abstract：:Homologous recombination is now routinely used in mammalian cells to replace endogenous chromosomal sequences with transferred DNA. Vectors for this purpose are traditionally constructed so that the replacement segment is flanked on both sides by DNA sequences which are identical to sequences in the chromosomal target...

journal_title：Molecular and cellular biology

authors： Berinstein N,Pennell N,Ottaway CA,Shulman MJ

更新日期：1992-01-01 00:00:00

abstract：:Nucleokinesis has recently been suggested as a critical regulator of neuronal migration. Here we show that Disabled 1 (Dab1), which is required for neuronal positioning in mammals, regulates the nuclear position of postmitotic neurons in a phosphorylation-site dependent manner. Dab1 expression in the Drosophila visual...

journal_title：Molecular and cellular biology

authors： Pramatarova A,Ochalski PG,Lee CH,Howell BW

更新日期：2006-02-01 00:00:00

abstract：:The O-linked N-acetylglucosamine (O-GlcNAc) modification of proteins is dynamic and abundant in the nucleus and cytosol. Several transcription factors, including Sp1, have been shown to contain this modification; however, the functional role of O-GlcNAc in these proteins has not been determined. In this paper we descr...

journal_title：Molecular and cellular biology

authors： Roos MD,Su K,Baker JR,Kudlow JE

更新日期：1997-11-01 00:00:00

abstract：:A mouse homologue of the Drosophila melanogaster germ cell-less (mgcl-1) gene is expressed ubiquitously, and its gene product is localized to the nuclear envelope based on its binding to LAP2 beta (lamina-associated polypeptide 2 beta). To elucidate the role of mgcl-1, we analyzed two mutant mouse lines that lacked mg...

journal_title：Molecular and cellular biology

authors： Kimura T,Ito C,Watanabe S,Takahashi T,Ikawa M,Yomogida K,Fujita Y,Ikeuchi M,Asada N,Matsumiya K,Okuyama A,Okabe M,Toshimori K,Nakano T

更新日期：2003-02-01 00:00:00

abstract：:This paper presents a general means of eliminating the function of a single protein without relying on genetic alterations in its structure or level of synthesis. The strategy is based on the inducible cellular expression of neutralizing antibody to inactivate the protein selectively. The feasibility of this approach ...

journal_title：Molecular and cellular biology

authors： Carlson JR

更新日期：1988-06-01 00:00:00

abstract：:The J domain of simian virus 40 (SV40) large T antigen is required for efficient DNA replication and transformation. Despite previous reports demonstrating the promiscuity of J domains in heterologous systems, results presented here show the requirement for specific J-domain sequences in SV40 large-T-antigen-mediated ...

journal_title：Molecular and cellular biology

authors： Sullivan CS,Tremblay JD,Fewell SW,Lewis JA,Brodsky JL,Pipas JM

更新日期：2000-08-01 00:00:00

abstract：:To identify novel genes that play critical roles in mediating bone morphogenetic protein (BMP) signal pathways, we performed a yeast two-hybrid screen using Smad1 as bait. A novel mouse Krüppel-type zinc finger protein, mZnf8, was isolated. Interactions between mZnf8 and Smad proteins were further analyzed with variou...

journal_title：Molecular and cellular biology

authors： Jiao K,Zhou Y,Hogan BL

更新日期：2002-11-01 00:00:00

abstract：:Mutations were introduced in 7 kilobases of 5'-flanking rat alpha 1-fetoprotein (AFP) genomic DNA, linked to the chloramphenicol acetyltransferase gene. AFP promoter activity and its repression by a glucocorticoid hormone were assessed by stable and transient expression assays. Stable transfection assays were more sen...

journal_title：Molecular and cellular biology

authors： Guertin M,LaRue H,Bernier D,Wrange O,Chevrette M,Gingras MC,Bélanger L

更新日期：1988-04-01 00:00:00

abstract：:The ubiquitin-proteasome pathway (UPP) is involved in regulation of multiple cellular processes. Hypoxia-inducible factor 1 alpha (HIF-1 alpha) is a prototypic target of the UPP and, as such, is stabilized under conditions of proteasomal inhibition. Using carbonic anhydrase IX (CAIX) and vascular endothelial growth fa...

journal_title：Molecular and cellular biology

authors： Kaluz S,Kaluzová M,Stanbridge EJ

更新日期：2006-08-01 00:00:00

abstract：:IkappaB alpha retains the transcription factor NF-kappaB in the cytoplasm, thus inhibiting its function. Various stimuli inactivate IkappaB alpha by triggering phosphorylation of the N-terminal residues Ser32 and Ser36. Phosphorylation of both serines is demonstrated directly by phosphopeptide mapping utilizing calpai...

journal_title：Molecular and cellular biology

authors： Brown K,Franzoso G,Baldi L,Carlson L,Mills L,Lin YC,Gerstberger S,Siebenlist U

更新日期：1997-06-01 00:00:00

abstract：:Poliovirus polysomal RNA is naturally uncapped, and as such, its translation must bypass any 5' cap-dependent ribosome recognition event. To elucidate the manner by which poliovirus mRNA is translated, we have determined the translational efficiencies of a series of deletion mutants within the 5' noncoding region of t...

journal_title：Molecular and cellular biology

authors： Pelletier J,Kaplan G,Racaniello VR,Sonenberg N

更新日期：1988-03-01 00:00:00

abstract：:Rad53 of Saccharomyces cerevisiae is a checkpoint kinase whose structure and function are conserved among eukaryotes. When a cell detects damaged DNA, Rad53 activity is dramatically increased, which ultimately leads to changes in DNA replication, repair, and cell division. Despite its central role in checkpoint signal...

journal_title：Molecular and cellular biology

authors： Sidorova JM,Breeden LL

更新日期：2003-05-01 00:00:00

abstract：:Chicken embryo fibroblast cells overexpressing activated mutant forms of human pp60c-src, but not those overexpressing normal human pp60c-src, exhibited high levels of type I phosphatidylinositol (PI) kinase activity associated with pp60c-src. Levels of PI kinase activity were positively correlated with src tyrosine p...

journal_title：Molecular and cellular biology

authors： Chan TO,Tanaka A,Bjorge JD,Fujita DJ

更新日期：1990-06-01 00:00:00

abstract：:The serum response factor (SRF) and myocyte enhancer factor 2A (MEF2A) represent two human members of the MADS-box transcription factor family. Each protein has a distinct biological function which is reflected by the distinct specificities of the proteins for coregulatory protein partners and DNA-binding sites. In th...

journal_title：Molecular and cellular biology

authors： West AG,Shore P,Sharrocks AD

更新日期：1997-05-01 00:00:00

abstract：:This is the first study reporting the inactivation of a member of the mouse gene family of toxin-related ecto-ADP-ribosyltransferases (ARTs). Transfer of the ADP-ribose moiety from NAD onto extracellular arginine residues on T-cell membrane proteins is mediated by glycosylphosphatidylinositol-linked cell surface ARTs....

journal_title：Molecular and cellular biology

authors： Ohlrogge W,Haag F,Löhler J,Seman M,Littman DR,Killeen N,Koch-Nolte F

更新日期：2002-11-01 00:00:00

abstract：:TRIF is an essential adaptor for Toll-like receptor 3/4 (TLR3/4) signaling to activate transcription factor interferon regulatory factor 3 (IRF-3). We examined the molecular mechanism of TLR3 signaling and found that TLR3 stimulation by double-stranded RNA (dsRNA) induces phosphorylation of TRIF at Ser210 and is requi...

journal_title：Molecular and cellular biology

authors： Abe H,Satoh J,Shirasaka Y,Kogure A,Kato H,Ito S,Fujita T

更新日期：2020-02-12 00:00:00

abstract：:In Saccharomyces cerevisiae, the protein phosphatase type 1 (PP1)-binding protein Reg1 is required to maintain complete repression of ADH2 expression during growth on glucose. Surprisingly, however, mutant forms of the yeast PP1 homologue Glc7, which are unable to repress expression of another glucose-regulated gene, ...

journal_title：Molecular and cellular biology

authors： Dombek KM,Voronkova V,Raney A,Young ET

更新日期：1999-09-01 00:00:00

abstract：:Biochemical experiments indicate that the general transcription factor IIB (TFIIB) can interact directly with acidic activation domains and that activators can stimulate transcription by increasing recruitment of TFIIB to promoters. For promoters at which recruitment of TFIIB to promoters is limiting in vivo, one woul...

journal_title：Molecular and cellular biology

authors： Chou S,Struhl K

更新日期：1997-12-01 00:00:00

abstract：:All inbred strains of mice carry the Ren-1 structural gene, which encodes the renin-1 isozyme, the classical renin activity found in kidneys. In addition, some strains carry a second renin structural gene, Ren-2, which encodes the predominantly expressed submaxillary gland renin isozyme, renin-2. Ren-1 and Ren-2 exhib...

journal_title：Molecular and cellular biology

authors： Field LJ,Philbrick WM,Howles PN,Dickinson DP,McGowan RA,Gross KW

更新日期：1984-11-01 00:00:00

abstract：:Lactoperoxidase was used to selectively radiolabel endocytic membrane. CHO cells were incubated with enzyme at 37 degrees C for 10 min to permit lactoperoxidase internalization. Radioiodination was done at 4 degrees C. About 90% of the radioiodinated products pelleted at 100,000 X g. From 12 to 15 different electropho...

journal_title：Molecular and cellular biology

authors： Storrie B,Dreesen TD,Maurey KM

更新日期：1981-03-01 00:00:00

abstract：:The mammalian target of rapamycin (mTOR) is a Ser/Thr (S/T) protein kinase, which controls mRNA translation initiation by modulating phosphorylation of the translational regulators PHAS-I and p70(S6K). Here we show that in vitro mTOR is able to phosphorylate these two regulators at comparable rates. Both (S/T)P sites,...

journal_title：Molecular and cellular biology

authors： McMahon LP,Choi KM,Lin TA,Abraham RT,Lawrence JC Jr

更新日期：2002-11-01 00:00:00

abstract：:Previous studies demonstrated that growth in DBA/2 mice of MDW4, a wheat germ agglutinin-resistant (WGAr) mutant of the highly metastatic MDAY-D2 DBA/2 mouse tumor, led to the emergence of WGA-sensitive (WGAs) revertants having higher ploidy levels at the site of inoculation as well as at distant visceral metastases. ...

journal_title：Molecular and cellular biology

authors： Kerbel RS,Lagarde AE,Dennis JW,Donaghue TP

更新日期：1983-04-01 00:00:00

abstract：:In a previous paper, we have shown that in the absence of stress, mouse embryonal carcinoma cells, like mouse early embryo multipotent cells, synthesize high levels of 89- and 70-kilodalton heat shock proteins (HSP)(O. Bensaude and M. Morange, EMBO J. 2:173-177, 1983). We report here the pattern of proteins synthesize...

journal_title：Molecular and cellular biology

authors： Morange M,Diu A,Bensaude O,Babinet C

更新日期：1984-04-01 00:00:00

abstract：:In yeast there are at least 14 members of the beta-karyopherin protein family that govern the movement of a diverse set of cargoes between the nucleus and cytoplasm. Knowledge of the cargoes carried by each karyopherin and insight into the mechanisms of transport are fundamental to understanding constitutive and regul...

journal_title：Molecular and cellular biology

authors： Leslie DM,Zhang W,Timney BL,Chait BT,Rout MP,Wozniak RW,Aitchison JD

更新日期：2004-10-01 00:00:00

abstract：:We have shown previously that perturbation of origin firing in chromosome replication causes DNA lesions and triggers DNA damage checkpoint control, which ensures genomic integrity by stopping cell cycle progression until the lesions are repaired or by inducing cell death if they are not properly repaired. This was ba...

journal_title：Molecular and cellular biology

authors： Ide S,Watanabe K,Watanabe H,Shirahige K,Kobayashi T,Maki H

更新日期：2007-01-01 00:00:00

abstract：:The high-affinity interleukin 2 receptor (IL-2R) consists of at least three distinct subunits: the IL-2R alpha chain (IL-2R alpha), beta chain (IL-2R beta), and gamma chain (IL-2R gamma). It has been shown that the cytoplasmic region of IL-2R beta, but not of IL-2R alpha, is essential for IL-2 signalling to the cell i...

journal_title：Molecular and cellular biology

authors： Kawahara A,Minami Y,Taniguchi T

更新日期：1994-08-01 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：:Three ras homologs have been identified in Drosophila melanogaster. Here we describe the tissue distribution of their transcripts as analyzed by in situ hybridization. The RNAs of the three genes show a similar distribution at every developmental stage examined. In embryos, the transcripts are uniformly distributed. I...

journal_title：Molecular and cellular biology

authors： Segal D,Shilo BZ

更新日期：1986-06-01 00:00:00

abstract：:The Wnt-1 proto-oncogene is essential for proper development of the midbrain and is expressed in a spatially and temporally restricted manner during central nervous system development in mice. In vitro, the gene is specifically transcribed during the retinoic acid (RA)-induced neuroectodermal differentiation of the P1...

journal_title：Molecular and cellular biology

authors： St-Arnaud R,Moir JM

更新日期：1993-03-01 00:00:00