RotundRacGAP functions with Ras during spermatogenesis and retinal differentiation in Drosophila melanogaster.

abstract：:The products of c-fos and c-jun (Fos and Jun) function in gene regulation by interacting with the AP-1 binding site. Here we have examined the contribution of Fos and Jun toward transcriptional activity by using Fos and Jun polypeptides purified from Escherichia coli. Fos contained a transcriptional activation domain ...

journal_title：Molecular and cellular biology

authors： Abate C,Luk D,Gagne E,Roeder RG,Curran T

更新日期：1990-10-01 00:00:00

abstract：:Ribosomal DNA (rDNA) genes in eukaryotes are organized into multicopy tandem arrays and transcribed by RNA polymerase I. During cell proliferation, ∼50% of these genes are active and have a relatively open chromatin structure characterized by elevated accessibility to psoralen cross-linking. In Saccharomyces cerevisia...

journal_title：Molecular and cellular biology

authors： Johnson JM,French SL,Osheim YN,Li M,Hall L,Beyer AL,Smith JS

更新日期：2013-07-01 00:00:00

abstract：:Nuclear expression and consequent biological action of the eukaryotic NF-kappa B transcription factor complex are tightly regulated through its cytoplasmic retention by an ankyrin-rich inhibitory protein termed I kappa B alpha. I kappa B alpha specifically binds to and masks the nuclear localization signal of the RelA...

journal_title：Molecular and cellular biology

authors： Sun S,Elwood J,Greene WC

更新日期：1996-03-01 00:00:00

abstract：:Histone acetylation plays an important role in regulating chromatin structure and thus gene expression. Here we describe the functional characterization of HDAC4, a human histone deacetylase whose C-terminal part displays significant sequence similarity to the deacetylase domain of yeast HDA1. HDAC4 is expressed in va...

journal_title：Molecular and cellular biology

authors： Wang AH,Bertos NR,Vezmar M,Pelletier N,Crosato M,Heng HH,Th'ng J,Han J,Yang XJ

更新日期：1999-11-01 00:00:00

abstract：:The mTOR signaling complex integrates signals from growth factors and nutrient availability to control cell growth and proliferation, in part through effects on the protein-synthetic machinery. Protein synthesis rates fluctuate throughout the cell cycle but diminish significantly during the G(2)/M transition. The fate...

journal_title：Molecular and cellular biology

authors： Ramírez-Valle F,Badura ML,Braunstein S,Narasimhan M,Schneider RJ

更新日期：2010-07-01 00:00:00

abstract：:Sequences of DNA that hybridize on Southern blots with cloned intracisternal A-particle (IAP) sequences have been examined in genomic DNAs of neonatal mice, livers of adult mice (3, 6, 12, 18, 24, and 26 months old), and the solid myeloma tumor MOPC-315. The isoschizomers HpaII (CCGG or mCCGG) and MspI (CCGG or CmCGG)...

journal_title：Molecular and cellular biology

authors： Mays-Hoopes LL,Brown A,Huang RC

更新日期：1983-08-01 00:00:00

abstract：:Eukaryotic chromosomes are organized into domains of activity for both transcription and DNA replication. Transcriptional "border," or "insulator," elements have been implicated in mediating the organization of transcriptional domains. However, the DNA sequence elements which might demarcate domains of DNA replication...

journal_title：Molecular and cellular biology

authors： Lu L,Tower J

更新日期：1997-04-01 00:00:00

abstract：:Metallothioneins (MTs) are short, cysteine-rich proteins for heavy metal homeostasis and detoxification; they bind a variety of heavy metals and also act as radical scavengers. Transcription of mammalian MT genes is activated by heavy metal load via the metal-responsive transcription factor 1 (MTF-1), an essential zin...

journal_title：Molecular and cellular biology

authors： Zhang B,Egli D,Georgiev O,Schaffner W

更新日期：2001-07-01 00:00:00

abstract：:RNA editing of specific residues by adenosine deamination is a nuclear process catalyzed by adenosine deaminases acting on RNA (ADAR). Different promoters in the ADAR1 gene give rise to two forms of the protein: a constitutive promoter expresses a transcript encoding (c)ADAR1, and an interferon-induced promoter expres...

journal_title：Molecular and cellular biology

authors： Poulsen H,Nilsson J,Damgaard CK,Egebjerg J,Kjems J

更新日期：2001-11-01 00:00:00

abstract：:A key antioxidant pathway, the Keap1-Nrf2 system, is regulated by p62/Sqstm1 via multiple mechanisms, including gene expression, posttranslational modifications (such as ubiquitination and phosphorylation), and autophagic degradation of p62/Sqstm1 and Keap1. Here we demonstrate a novel mode of regulation of the Keap1-...

journal_title：Molecular and cellular biology

authors： Kageyama S,Saito T,Obata M,Koide RH,Ichimura Y,Komatsu M

更新日期：2018-03-15 00:00:00

abstract：:Total genomic DNA from a temperature-sensitive, colcemid-resistant Chinese hamster ovary (CHO) cell mutant expressing an electrophoretic variant beta-tubulin was used to transform wild-type CHO cells to colcemid-resistant cells at 37 degrees C. Southern blot analysis of the transformant demonstrated the three- to five...

journal_title：Molecular and cellular biology

authors： Whitfield C,Abraham I,Ascherman D,Gottesman MM

更新日期：1986-05-01 00:00:00

abstract：:NIH 3T3 cells infected with Moloney murine leukemia virus (MoMLV) express high levels of virus-specific RNA. To inhibit replication of the virus, we stably introduced chimeric tRNA genes encoding antisense templates into NIH 3T3 cells via a retroviral vector. Efficient expression of hybrid tRNA-MoMLV antisense transcr...

journal_title：Molecular and cellular biology

authors： Sullenger BA,Lee TC,Smith CA,Ungers GE,Gilboa E

更新日期：1990-12-01 00:00:00

abstract：:Interleukin-2 (IL-2) activates several different families of tyrosine kinases, but precisely how these kinases interact is not completely understood. We therefore investigated the functional relationships among Jak3, Lck, and Syk in IL-2 signaling. We first observed that in the absence of Jak3, both Lck and Syk had th...

journal_title：Molecular and cellular biology

authors： Zhou YJ,Magnuson KS,Cheng TP,Gadina M,Frucht DM,Galon J,Candotti F,Geahlen RL,Changelian PS,O'Shea JJ

更新日期：2000-06-01 00:00:00

abstract：:The abundance of the mRNA for human triosephosphate isomerase (TPI) is decreased to approximately 20% of normal by frameshift and nonsense mutations that cause translation to terminate at a nonsense codon within the first three-fourths of the reading frame. Results of previous studies inhibiting RNA synthesis with act...

journal_title：Molecular and cellular biology

authors： Cheng J,Maquat LE

更新日期：1993-03-01 00:00:00

abstract：:We previously identified a set of transcription regulators, referred to as TIPs (tension-induced/inhibited proteins), with a role in myogenic versus adipogenic differentiation. Here we report that the TIP family comprises eight isoforms, all bearing a SANT (switching-defective protein 3, adaptor 2, nuclear receptor co...

journal_title：Molecular and cellular biology

authors： Badri KR,Zhou Y,Dhru U,Aramgam S,Schuger L

更新日期：2008-10-01 00:00:00

abstract：:By injecting the appropriately constructed plasmids into one-cell Xenopus embryos, we determined that the 3' region of the maternal Xenopus Eg2 mRNA confers instability on the chimeric mRNA transcribed from these plasmids. This instability, like that of the maternal Eg2 transcript, was abolished by treatment of the em...

journal_title：Molecular and cellular biology

authors： Bouvet P,Paris J,Phillippe M,Osborne HB

更新日期：1991-06-01 00:00:00

abstract：:The class II transactivator (CIITA) is induced by gamma interferon (IFN-gamma) and activates major histocompatibility complex class II; however, this report shows it suppresses other genes. An N-terminal 36 amino acids of CIITA mediates suppression of the collagen alpha(2)(I) promoter via binding to CREB-binding prote...

journal_title：Molecular and cellular biology

authors： Zhu XS,Ting JP

更新日期：2001-10-01 00:00:00

abstract：:B52, an essential SR protein of Drosophila melanogaster, stimulates pre-mRNA splicing in splicing-deficient mammalian S100 extracts. Surprisingly, mutant larvae depleted of B52 were found to be capable of splicing at least several pre-mRNAs tested (H. Z. Ring and J. T. Lis, Mol. Cell. Biol. 14:7499-7506, 1994). In a h...

journal_title：Molecular and cellular biology

authors： Hoffman BE,Lis JT

更新日期：2000-01-01 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：:Two cis-regulatory regions are required for efficient mRNA 3'-end processing of the maize 27-kDa zein mRNA: a region containing a duplicated AAUGAA poly(A) signal and a region that is present upstream from it. Strict spatial positioning of these two regions is required for efficient mRNA 3'-end processing. Insertion o...

journal_title：Molecular and cellular biology

authors： Wu L,Ueda T,Messing J

更新日期：1994-10-01 00:00:00

abstract：:There are five members of the RFX family of transcription factors in mammals. While RFX5 plays a well-defined role in the immune system, the functions of RFX1 to RFX4 remain largely unknown. We have generated mice with a deletion of the Rfx3 gene. RFX3-deficient mice exhibit frequent left-right (LR) asymmetry defects ...

journal_title：Molecular and cellular biology

authors： Bonnafe E,Touka M,AitLounis A,Baas D,Barras E,Ucla C,Moreau A,Flamant F,Dubruille R,Couble P,Collignon J,Durand B,Reith W

更新日期：2004-05-01 00:00:00

abstract：:The structural maintenance of chromosomes (Smc) family members Smc5 and Smc6 are both essential in budding and fission yeasts. Yeast smc5/6 mutants are hypersensitive to DNA damage, and Smc5/6 is recruited to HO-induced double-strand breaks (DSBs), facilitating intersister chromatid recombinational repair. To determin...

journal_title：Molecular and cellular biology

authors： Stephan AK,Kliszczak M,Dodson H,Cooley C,Morrison CG

更新日期：2011-04-01 00:00:00

abstract：:To determine the types of alterations in gene structure induced by DNA-alkylating agents, we analyzed the restriction enzyme cleavage patterns of adenine phosphoribosyltransferase gene sequences in mutant strains of Chinese hamster ovary cells deficient in this enzyme. Base pair changes as detected by loss of restrict...

journal_title：Molecular and cellular biology

authors： Meuth M,Arrand JE

更新日期：1982-11-01 00:00:00

abstract：:The forkhead transcription factor FoxM1 has been reported to regulate, variously, proliferation and/or spindle formation during the G2/M transition of the cell cycle. Here we define specific functions of FoxM1 during brain development by the investigation of FoxM1 loss-of-function mutations in the context of Sonic hed...

journal_title：Molecular and cellular biology

authors： Schüller U,Zhao Q,Godinho SA,Heine VM,Medema RH,Pellman D,Rowitch DH

更新日期：2007-12-01 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：:The human immunodeficiency virus type 1 Rev protein contains a nuclear export signal (NES) that is required for Rev-mediated RNA export in mammals as well as in the yeast Saccharomyces cerevisiae. The Rev NES has been shown to specifically interact with a human (hRIP/RAB1) and a yeast (yRip1p) protein in the two-hybri...

journal_title：Molecular and cellular biology

authors： Stutz F,Izaurralde E,Mattaj IW,Rosbash M

更新日期：1996-12-01 00:00:00

abstract：:Polarized cell movement is an essential requisite for cancer metastasis; thus, interference with the tumor cell motility machinery would significantly modify its metastatic behavior. Protein kinase C alpha (PKC alpha) has been implicated in the promotion of a migratory cell phenotype. We report that the phorbol ester-...

journal_title：Molecular and cellular biology

authors： Parsons M,Keppler MD,Kline A,Messent A,Humphries MJ,Gilchrist R,Hart IR,Quittau-Prevostel C,Hughes WE,Parker PJ,Ng T

更新日期：2002-08-01 00:00:00

abstract：:The Son of sevenless proteins (Sos) are guanine nucleotide exchange factors involved in the activation of Ras by cytoplasmic and receptor tyrosine kinases. Growth factor stimulation rapidly induces the phosphorylation of Sos on multiple serine and threonine sites. Previous studies have demonstrated that growth factor-...

journal_title：Molecular and cellular biology

authors： Corbalan-Garcia S,Yang SS,Degenhardt KR,Bar-Sagi D

更新日期：1996-10-01 00:00:00

abstract：:IME1 encodes a transcriptional activator required for the transcription of meiosis-specific genes and initiation of meiosis in Saccharomyces cerevisiae. The transcription of IME1 is repressed in the presence of glucose, and a low basal level of IME1 RNA is observed in vegetative cultures with acetate as the sole carbo...

journal_title：Molecular and cellular biology

authors： Sagee S,Sherman A,Shenhar G,Robzyk K,Ben-Doy N,Simchen G,Kassir Y

更新日期：1998-04-01 00:00:00

abstract：:The spliceosomal small nuclear RNAs U1, U2, U4, and U5 are transcribed by RNA polymerase II as precursors with extensions at their 3' ends. The 3' processing of these pre-snRNAs is not understood in detail. Two pathways of pre-U2 RNA 3' processing in vitro were revealed in the present investigation by using a series o...

journal_title：Molecular and cellular biology

authors： Huang Q,Jacobson MR,Pederson T

更新日期：1997-12-01 00:00:00