The simian virus 40 sequences between 0.169 and 0.423 map units are not essential to immortalize early-passage rat embryo cells.

abstract：:ZO-1, ZO-2, and ZO-3 are closely related MAGUK family proteins that localize at the cytoplasmic surface of tight junctions (TJs). ZO-1 and ZO-2 are expressed in both epithelia and endothelia, whereas ZO-3 is exclusively expressed in epithelia. In spite of intensive studies of these TJ MAGUKs, our knowledge of their fu...

journal_title：Molecular and cellular biology

authors： Adachi M,Inoko A,Hata M,Furuse K,Umeda K,Itoh M,Tsukita S

更新日期：2006-12-01 00:00:00

abstract：:The full-length normal and T24 mutant human H-ras proteins and two truncated derivatives of the T24 mutant were expressed efficiently in Escherichia coli. The proteins accumulated to 1 to 5% of total cellular protein, and each was specifically recognized by anti-ras monoclonal antibodies. The two full-length proteins ...

journal_title：Molecular and cellular biology

authors： Gross M,Sweet RW,Sathe G,Yokoyama S,Fasano O,Goldfarb M,Wigler M,Rosenberg M

更新日期：1985-05-01 00:00:00

abstract：:Fractalkine (CX(3)CL1) is the first described chemokine that can exist either as a soluble protein or as a membrane-bound molecule. Both forms of fractalkine can mediate adhesion of cells expressing its receptor, CX(3)CR1. This activity, together with its expression on endothelial cells, suggests that fractalkine migh...

journal_title：Molecular and cellular biology

authors： Cook DN,Chen SC,Sullivan LM,Manfra DJ,Wiekowski MT,Prosser DM,Vassileva G,Lira SA

更新日期：2001-05-01 00:00:00

abstract：:The signaling routes linking G-protein-coupled receptors to mitogen-activated protein kinase (MAPK) may involve tyrosine kinases, phosphoinositide 3-kinase gamma (PI3Kgamma), and protein kinase C (PKC). To characterize the mitogenic pathway of bradykinin (BK), COS-7 cells were transiently cotransfected with the human ...

journal_title：Molecular and cellular biology

authors： Adomeit A,Graness A,Gross S,Seedorf K,Wetzker R,Liebmann C

更新日期：1999-08-01 00:00:00

abstract：:The product of the EUG1 gene of Saccharomyces cerevisiae is a soluble endoplasmic reticulum protein with homology to both the mammalian protein disulfide isomerase (PDI) and the yeast PDI homolog encoded by the essential PDI1 gene. Deletion or overexpression of EUG1 causes no growth defects under a variety of conditio...

journal_title：Molecular and cellular biology

authors： Tachibana C,Stevens TH

更新日期：1992-10-01 00:00:00

abstract：:Phospholipase Cgamma2 (PLCgamma2) is critical for pre-B-cell receptor (pre-BCR) and BCR signaling. Current studies discovered that PLCgamma2-deficient mice had reduced immunoglobulin lambda (Iglambda) light-chain usage throughout B-cell maturation stages, including transitional type 1 (T1), transitional type 2 (T2), a...

journal_title：Molecular and cellular biology

authors： Bai L,Chen Y,He Y,Dai X,Lin X,Wen R,Wang D

更新日期：2007-09-01 00:00:00

abstract：:Methyl-accepting assays and a sensitive method for labeling specific CpG sites have been used to show that the DNA of F9 embryonal carcinoma cells decreases in 5-methylcytosine content by ca. 9% during retinoic acid-induced differentiation, whereas the DNA of dimethyl sulfoxide-induced Friend murine erythroleukemia (M...

journal_title：Molecular and cellular biology

authors： Bestor TH,Hellewell SB,Ingram VM

更新日期：1984-09-01 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：:HMGA chromatin proteins, a family of gene regulatory factors found at only low concentrations in normal cells, are almost universally overexpressed in cancer cells. HMGA proteins are located in the nuclei of normal cells except during the late S/G(2) phases of the cell cycle, when HMGA1, one of the members of the fami...

journal_title：Molecular and cellular biology

authors： Mao L,Wertzler KJ,Maloney SC,Wang Z,Magnuson NS,Reeves R

更新日期：2009-10-01 00:00:00

abstract：:The adapter protein 3BP2 is expressed in lymphocytes; binds to Syk/ZAP-70, Vav, and phospholipase C-gamma (PLC-gamma); and is thought to be important for interleukin-2 gene transcription in T cells. To define the role of 3BP2 in lymphocyte development and function, we generated 3BP2-deficient mice. T-cell development,...

journal_title：Molecular and cellular biology

authors： de la Fuente MA,Kumar L,Lu B,Geha RS

更新日期：2006-07-01 00:00:00

abstract：:Using nuclear runoff transcription assays we demonstrated that alpha interferon-mediated induction of transcription of four mRNAs in HeLa monolayer cells needed ongoing protein synthesis and that such a need could be obviated by pretreating the cells with gamma interferon which, by itself, did not induce transcription...

journal_title：Molecular and cellular biology

authors： Kusari J,Sen GC

更新日期：1987-01-01 00:00:00

abstract：:An RNA editing mechanism modifies apolipoprotein B (apo-B) mRNA in the intestine by converting cytosine at nucleotide (nt) 6666 to uracil. To define the sequence requirements for editing, mutant apo-B RNAs were analyzed for the ability to be edited in vitro by enterocyte extracts. Editing was detected by a sensitive a...

journal_title：Molecular and cellular biology

authors： Driscoll DM,Lakhe-Reddy S,Oleksa LM,Martinez D

更新日期：1993-12-01 00:00:00

abstract：:The GCM family of transcription factors consists of Drosophila melanogaster GCM, an important regulator of gliogenesis in the fly, and its two mammalian homologs, GCMa and GCMb. To clarify the function of these mammalian homologs, we deleted GCMa in mice. Genetic ablation of murine GCMa (mGCMa) is embryonic lethal, wi...

journal_title：Molecular and cellular biology

authors： Schreiber J,Riethmacher-Sonnenberg E,Riethmacher D,Tuerk EE,Enderich J,Bösl MR,Wegner M

更新日期：2000-04-01 00:00:00

abstract：:Individuals with the inherited cancer predisposition syndrome neurofibromatosis 2 (NF2) develop several central nervous system (CNS) malignancies, including glial cell neoplasms (ependymomas). Recent studies have suggested that the NF2 protein, merlin (or schwannomin), may regulate receptor tyrosine kinase signaling, ...

journal_title：Molecular and cellular biology

authors： Houshmandi SS,Emnett RJ,Giovannini M,Gutmann DH

更新日期：2009-03-01 00:00:00

abstract：:Double-strand breaks (DSBs) stimulate chromosomal and extrachromosomal recombination and gene targeting. Transcription also stimulates spontaneous recombination by an unknown mechanism. We used Saccharomyces cerevisiae I-SceI to stimulate recombination between neo direct repeats in Chinese hamster ovary (CHO) cell chr...

journal_title：Molecular and cellular biology

authors： Taghian DG,Nickoloff JA

更新日期：1997-11-01 00:00:00

abstract：:p36, a major in vivo substrate of protein-tyrosine kinases, is shown to be phosphorylated at serine 25, a site very close to the major site of tyrosine phosphorylation by pp60v-src, tyrosine 23 (J. R. Glenney, Jr., and B. F. Tack, Proc. Natl. Acad. Sci. USA 82:7884-7888, 1985). We present evidence suggesting that prot...

journal_title：Molecular and cellular biology

authors： Gould KL,Woodgett JR,Isacke CM,Hunter T

更新日期：1986-07-01 00:00:00

abstract：:The Ras pathway transduces divergent signals determining normal cell fate and is frequently activated in hematopoietic malignancies, but the manner in which activation contributes to human leukemia is poorly understood. We report that a high level of activated H-Ras signaling in transduced primary human hematopoietic ...

journal_title：Molecular and cellular biology

authors： Dorrell C,Takenaka K,Minden MD,Hawley RG,Dick JE

更新日期：2004-08-01 00:00:00

abstract：:Using a subtractive cloning scheme on cDNA prepared from primary pro-B and pre-B cells, we identified several genes whose products regulate apoptosis. We further characterized one of these genes, encoding protein kinase Ceta (PKCeta). PKCeta transcripts were readily detected in pro-B cells but were absent in pre-B cel...

journal_title：Molecular and cellular biology

authors： Morrow TA,Muljo SA,Zhang J,Hardwick JM,Schlissel MS

更新日期：1999-08-01 00:00:00

abstract：:The mouse Surfeit locus, which contains a cluster of at least four genes (Surf-1 to Surf-4), is unusual in that adjacent genes are separated by no more than 73 base pairs (bp). The heterogeneous 5' ends of Surf-1 and Surf-2 are separated by only 15 to 73 bp, the 3' ends of Surf-1 and Surf-3 are only 70 bp apart, and t...

journal_title：Molecular and cellular biology

authors： Giallongo A,Yon J,Fried M

更新日期：1989-01-01 00:00:00

abstract：:The expressed variant cell surface glycoprotein (VSG) gene of Trypanosoma brucei is located at the 3' end of a large, telomeric, polycistronic transcription unit or expression site. We show that the region 45 kb upstream of the VSG gene, in the expression site on a 1.5-Mb chromosome, contains at least two promoters th...

journal_title：Molecular and cellular biology

authors： Gottesdiener K,Chung HM,Brown SD,Lee MG,Van der Ploeg LH

更新日期：1991-05-01 00:00:00

abstract：:The Mauriceville retroplasmid of Neurospora mitochondria encodes a novel reverse transcriptase that initiates cDNA synthesis de novo (i.e., without a primer) at the 3' CCA of the plasmid transcript's 3' tRNA-like structure (H. Wang and A. M. Lambowitz, Cell 75:1071-1081, 1993). Here, we show that the plasmid reverse t...

journal_title：Molecular and cellular biology

authors： Chiang CC,Lambowitz AM

更新日期：1997-08-01 00:00:00

abstract：:The Asf1 and Rad6 pathways have been implicated in a number of common processes such as suppression of gross chromosomal rearrangements (GCRs), DNA repair, modification of chromatin, and proper checkpoint functions. We examined the relationship between Asf1 and different gene products implicated in postreplication rep...

journal_title：Molecular and cellular biology

authors： Kats ES,Enserink JM,Martinez S,Kolodner RD

更新日期：2009-10-01 00:00:00

abstract：:Akt is activated on the plasma membrane and its substrates are distributed throughout various cellular compartments. To phosphorylate its substrates, Akt needs to be recruited to specific intracellular compartments. Thus, regulation of Akt cellular compartmentalization constitutes an important mechanism to specify Akt...

journal_title：Molecular and cellular biology

authors： Ding J,Du K

更新日期：2009-03-01 00:00:00

abstract：:Expression of the recombinant human U1-70K protein in COS cells resulted in its rapid transport to the nucleus, even when binding to U1 RNA was debilitated. Deletion analysis of the U1-70K protein revealed the existence of two segments of the protein which were independently capable of nuclear localization. One nuclea...

journal_title：Molecular and cellular biology

authors： Romac JM,Graff DH,Keene JD

更新日期：1994-07-01 00:00:00

abstract：:Autophagy is considered an adaptive mechanism against hyperosmotic stress. Although the process has been reported to be triggered by the inhibition of mTORC1, the precise downstream mechanisms remain elusive. Here, we demonstrate that hyperosmotic-stress-induced autophagy is different from conventional macroautophagy ...

journal_title：Molecular and cellular biology

authors： Tamura N,Kageyama S,Komatsu M,Waguri S

更新日期：2019-07-29 00:00:00

abstract：:The conserved RNA binding protein La recognizes UUU-3'OH on its small nuclear RNA ligands and stabilizes them against 3'-end-mediated decay. We report that newly described La-related protein 4 (LARP4) is a factor that can bind poly(A) RNA and interact with poly(A) binding protein (PABP). Yeast two-hybrid analysis and ...

journal_title：Molecular and cellular biology

authors： Yang R,Gaidamakov SA,Xie J,Lee J,Martino L,Kozlov G,Crawford AK,Russo AN,Conte MR,Gehring K,Maraia RJ

更新日期：2011-02-01 00:00:00

abstract：:In the budding yeast Saccharomyces cerevisiae, Cdc37 is required for the productive formation of Cdc28-cyclin complexes. The cdc37-1 mutant arrests at Start with low levels of Cdc28 protein, which is predominantly unphosphorylated at Thr169, fails to bind cyclin, and has little protein kinase activity. We show here th...

journal_title：Molecular and cellular biology

authors： Farrell A,Morgan DO

更新日期：2000-02-01 00:00:00

abstract：:We have examined the possible role of adenosine 3',5'-phosphate (cAMP) in functions associated with the plasma membranes of Saccharomyces cerevisiae. Purified membranes from this source contained an adenylate cyclase which was insensitive to activation by fluoride or guanine nucleotides, only weakly responsive to chan...

journal_title：Molecular and cellular biology

authors： Jaynes PK,McDonough JP,Mahler HR

更新日期：1982-12-01 00:00:00

abstract：:Extracellular signal-regulated kinase (ERK) facilitates cell cycle progression in most mammalian cells, but in certain cell types prolonged signaling through this pathway promotes differentiation and lineage-specific gene expression through mechanisms that are poorly understood. Here, we characterize the transcription...

journal_title：Molecular and cellular biology

authors： Sevinsky JR,Whalen AM,Ahn NG

更新日期：2004-05-01 00:00:00

abstract：:We have examined the in vivo sites of action for topoisomerases II in the 87A7 heat shock locus as a function of gene activity. When the hsp70 genes are induced, there is a dramatic redistribution of topoisomerase II in the locus which parallels many of the observed alterations in chromatin structure. In addition to c...

journal_title：Molecular and cellular biology

authors： Udvardy A,Schedl P

更新日期：1993-12-01 00:00:00