Modulation of telomerase activity by telomere DNA-binding proteins in Oxytricha.

abstract：:Eukaryotic translation initiation begins with ribosomal recruitment of aminoacylated initiator tRNA (Met-tRNA(Met)(i)) by eukaryotic initiation factor eIF2. In cooperation with eIF3, eIF1, and eIF1A, Met-tRNA(Met)(i)/eIF2/GTP binds to 40S subunits yielding 43S preinitiation complexes that attach to the 5'-terminal reg...

journal_title：Genes & development

authors： Skabkin MA,Skabkina OV,Dhote V,Komar AA,Hellen CU,Pestova TV

更新日期：2010-08-15 00:00:00

abstract：:Mice mutant for the bHLH gene Hes1, which is known to keep cells in a proliferative state, mostly lack thymus. Transfer of Hes1-null fetal liver cells into RAG2-null host mice normally reconstitutes B cells but fails to generate mature T cells in the thymus. In the reconstituted thymus, T cell differentiation is arres...

journal_title：Genes & development

authors： Tomita K,Hattori M,Nakamura E,Nakanishi S,Minato N,Kageyama R

更新日期：1999-05-01 00:00:00

abstract：:Deregulated expression of the c-myc proto-oncogene can lead to apoptosis under certain physiological conditions. By introducing a conditionally active Myc allele into primary embryo fibroblasts null for p53, and into fibroblasts without endogenous p53 expression but ectopically expressing a temperature-sensitive p53 a...

journal_title：Genes & development

authors： Wagner AJ,Kokontis JM,Hay N

更新日期：1994-12-01 00:00:00

abstract：:Discrete sequence elements known as exonic splicing enhancers (ESEs) have been shown to influence both the efficiency of splicing and the profile of mature mRNAs in multicellular eukaryotes. While the existence of ESEs has not been demonstrated previously in unicellular eukaryotes, the factors known to recognize these...

journal_title：Genes & development

authors： Webb CJ,Romfo CM,van Heeckeren WJ,Wise JA

更新日期：2005-01-15 00:00:00

abstract：:Transcription factors represent one of the largest groups of proteins regulated by SUMO (small ubiquitin-like modifier) modification, and their sumoylation is usually associated with transcriptional repression. To investigate whether sumoylation plays a general role in regulating transcription in yeast, we determined ...

journal_title：Genes & development

authors： Rosonina E,Duncan SM,Manley JL

更新日期：2010-06-15 00:00:00

abstract：:In a four-cell-stage Caenorhabditis elegans embryo, Wnt signaling polarizes an endoderm precursor called EMS. The polarization of this cell orients its mitotic spindle in addition to inducing endodermal fate in one daughter cell. Reducing the function of Wnt pathway genes, including a newly identified GSK-3beta homolo...

journal_title：Genes & development

authors： Schlesinger A,Shelton CA,Maloof JN,Meneghini M,Bowerman B

更新日期：1999-08-01 00:00:00

abstract：:Myocardial infarction and ischemic heart disease are the leading cause of death in the industrial world. Therapies employed for treating these diseases are aimed at promoting increased blood flow to cardiac tissue. Pharmacological induction of new coronary growth has recently been explored, however, clinical trials wi...

journal_title：Genes & development

authors： Lavine KJ,White AC,Park C,Smith CS,Choi K,Long F,Hui CC,Ornitz DM

更新日期：2006-06-15 00:00:00

abstract：:Histone deacetylase 3 (HDAC3) is one of four members of the human class I HDACs that regulates gene expression by deacetylation of histones and nonhistone proteins. Early studies have suggested that HDAC3 activity is regulated by association with the corepressors N-CoR and SMRT. Here we demonstrate that, in addition t...

journal_title：Genes & development

authors： Zhang X,Ozawa Y,Lee H,Wen YD,Tan TH,Wadzinski BE,Seto E

更新日期：2005-04-01 00:00:00

abstract：:Transcription is often stochastic. This is seemingly incompatible with the importance of gene expression during development. Here we show that during zebrafish embryogenesis, transcription activation is stochastic due to (1) genes acquiring transcriptional competence at different times in different cells, (2) differen...

journal_title：Genes & development

authors： Stapel LC,Zechner C,Vastenhouw NL

更新日期：2017-08-15 00:00:00

abstract：:Antigenic stimulation of the B-cell receptor (BCR) is a central event in the immune response. In contrast, antigen bound to IgG negatively regulates signals from the BCR by cross-linking it to the inhibitory receptor FcgammaRIIB. Here we show that upon cross-linking of BCR or BCR with FcgammaRIIB, the rasGAP-associate...

journal_title：Genes & development

authors： Yamanashi Y,Tamura T,Kanamori T,Yamane H,Nariuchi H,Yamamoto T,Baltimore D

更新日期：2000-01-01 00:00:00

abstract：:The RAG-1 protein plays an essential role in V(D)j recombination, but its exact function has not yet been defined. Here we report that a particular mutation in RAG-1 affects recombination by altering the specificity of target sequence usage. Recombination mediated by wild-type RAG-1 is tolerant of a wide range of codi...

journal_title：Genes & development

authors： Sadofsky MJ,Hesse JE,van Gent DC,Gellert M

更新日期：1995-09-01 00:00:00

abstract：:Faithful duplication of the genome relies on the ability to cope with an imperfect template. We investigated replication of UV-damaged DNA in Escherichia coli and found that ongoing replication stops for at least 15-20 min before resuming. Undamaged origins of replication (oriC) continue to fire at the normal rate and...

journal_title：Genes & development

authors： Rudolph CJ,Upton AL,Lloyd RG

更新日期：2007-03-15 00:00:00

abstract：:Transcription of the cell-cycle-regulated human histone genes increases approximately fivefold during S phase. One step toward the elucidation of the biochemical mechanisms that govern cell-cycle-regulated expression of these genes is to purify and characterize the transcription factors that regulate these promoters. ...

journal_title：Genes & development

authors： Dailey L,Roberts SB,Heintz N

更新日期：1988-12-01 00:00:00

abstract：:Small noncoding RNAs, including small interfering RNAs (siRNAs) and micro RNAs (miRNAs) of approximately 21 nucleotides (nt) in length, have emerged as potent regulators of gene expression at both transcriptional and post-transcriptional levels in diverse organisms. Here we report the identification of a novel class o...

journal_title：Genes & development

authors： Grivna ST,Beyret E,Wang Z,Lin H

更新日期：2006-07-01 00:00:00

abstract：:Gene silencing by double-stranded RNA is a widespread phenomenon called RNAi, involving homology-dependent degradation of mRNAs. Here we show that RNAi is established in the Drosophila female germ line. mRNA transcripts are translationally quiescent at the arrested oocyte stage and are insensitive to RNAi. Upon oocyte...

journal_title：Genes & development

authors： Kennerdell JR,Yamaguchi S,Carthew RW

更新日期：2002-08-01 00:00:00

abstract：:PIWI clade Argonaute proteins silence transposon expression in animal gonads. Their target specificity is defined by bound ∼23- to 30-nucleotide (nt) PIWI-interacting RNAs (piRNAs) that are processed from single-stranded precursor transcripts via two distinct pathways. Primary piRNAs are defined by the endonuclease Zu...

journal_title：Genes & development

authors： Senti KA,Jurczak D,Sachidanandam R,Brennecke J

更新日期：2015-08-15 00:00:00

abstract：:The Hedgehog (Hh) family of secreted proteins controls many aspects of animal development. In Drosophila, Hh transduces its signal via Cubitus interruptus (Ci), a transcription factor present in two forms: a full-length activator and a carboxy-terminally truncated repressor that is derived from the full-length form by...

journal_title：Genes & development

authors： Wang G,Wang B,Jiang J

更新日期：1999-11-01 00:00:00

abstract：:Jun and Fos oncoproteins form a complex that regulates transcription from promoters containing AP-1 binding sites. The 'leucine zipper' domain of both Fos and Jun is necessary for the formation of the heterodimer, but the role of specific leucine residues is unclear. We have used site-specific mutagenesis to examine t...

journal_title：Genes & development

authors： Ransone LJ,Visvader J,Sassone-Corsi P,Verma IM

更新日期：1989-06-01 00:00:00

abstract：:The Swi/Snf chromatin remodeling complex functions to alter nucleosome positions by either sliding nucleosomes on DNA or the eviction of histones. The presence of histone acetylation and activator-dependent recruitment and retention of Swi/Snf is important for its efficient function. It is not understood, however, why...

journal_title：Genes & development

authors： Dutta A,Gogol M,Kim JH,Smolle M,Venkatesh S,Gilmore J,Florens L,Washburn MP,Workman JL

更新日期：2014-10-15 00:00:00

abstract：:Myxococcus xanthus fruiting body development is induced by amino acid limitation. The decision to grow or develop is established by the RelA-dependent stringent response and A-signaling. We identified two new members of this regulatory hierarchy, socE and the C-signaling gene csgA. SocE depletion arrests growth and in...

journal_title：Genes & development

authors： Crawford EW Jr,Shimkets LJ

更新日期：2000-02-15 00:00:00

abstract：:Motor axons make synaptic connections with specific muscles, and this specificity unfolds during development as motoneuron growth cones make specific pathway choices and ultimately recognize and synapse on their specific muscle targets. The Drosophila clueless mutation was identified previously in a genetic screen for...

journal_title：Genes & development

authors： Hu S,Fambrough D,Atashi JR,Goodman CS,Crews ST

更新日期：1995-12-01 00:00:00

abstract：:Wingless (Wg) is an important signaling molecule in the development of Drosophila, but little is known about its signal transduction pathway. Genetic evidence indicates that another segment polarity gene, dishevelled (dsh) is required for Wg signaling. We have recently developed a cell culture system for Wg protein ac...

journal_title：Genes & development

authors： Yanagawa S,van Leeuwen F,Wodarz A,Klingensmith J,Nusse R

更新日期：1995-05-01 00:00:00

abstract：:Mammalian cells possess two amino acid-sensing kinases: general control nonderepressible 2 (GCN2) and mechanistic target of rapamycin complex 1 (mTORC1). Their combined effects orchestrate cellular adaptation to amino acid levels, but how their activities are coordinated remains poorly understood. Here, we demonstrate...

journal_title：Genes & development

authors： Ye J,Palm W,Peng M,King B,Lindsten T,Li MO,Koumenis C,Thompson CB

更新日期：2015-11-15 00:00:00

abstract：:Cytosolic RNA/DNA sensing elicits primary defense against viral pathogens. Interferon regulatory factor 3 (IRF3), a key signal mediator/transcriptional factor of the antiviral-sensing pathway, is indispensible for interferon production and antiviral defense. However, how the status of IRF3 activation is controlled rem...

journal_title：Genes & development

authors： Meng F,Zhou R,Wu S,Zhang Q,Jin Q,Zhou Y,Plouffe SW,Liu S,Song H,Xia Z,Zhao B,Ye S,Feng XH,Guan KL,Zou J,Xu P

更新日期：2016-05-01 00:00:00

abstract：:Mutations that influence lin-12 activity in Caenorhabditis elegans may identify conserved factors that regulate the activity of lin-12/Notch proteins. We describe genetic evidence indicating that sel-10 is a negative regulator of lin-12/Notch-mediated signaling in C. elegans. Sequence analysis shows that SEL-10 is a m...

journal_title：Genes & development

authors： Hubbard EJ,Wu G,Kitajewski J,Greenwald I

更新日期：1997-12-01 00:00:00

abstract：:A key pathway that controls both cell division and differentiation in animal cells is mediated by the retinoblastoma (RB) family of tumor suppressors, which gate the passage of cells from G(1) to S and through S phase. The role(s) of the RB pathway in plants are not yet clearly defined, nor has there been any evidence...

journal_title：Genes & development

authors： Umen JG,Goodenough UW

更新日期：2001-07-01 00:00:00

abstract：:The MMTVD/myc transgenic mice spontaneously develop oligoclonal CD4+CD8+ T-cell tumors. We used provirus insertional mutagenesis in these mice to identify putative collaborators of c-myc. We found that Notch1 was mutated in a high proportion (52%) of these tumors. Proviruses were inserted upstream of the exon coding f...

journal_title：Genes & development

authors： Girard L,Hanna Z,Beaulieu N,Hoemann CD,Simard C,Kozak CA,Jolicoeur P

更新日期：1996-08-01 00:00:00

abstract：:Mu DNA transposition proceeds through a series of higher-order nucleoprotein complexes called transpososomes. The structural core of the transpososome is a tetramer of the transposase, Mu A, bound to the two transposon ends. High-resolution structural analysis of the intact transposase and the transpososome has not be...

journal_title：Genes & development

authors： Yuan JF,Beniac DR,Chaconas G,Ottensmeyer FP

更新日期：2005-04-01 00:00:00

abstract：:The association of transcription corepressors SMRT and N-CoR with retinoid and thyroid receptors results in suppression of basal transcriptional activity. A key event in nuclear receptor signaling is the hormone-dependent release of corepressor and the recruitment of coactivator. Biochemical and structural studies hav...

journal_title：Genes & development

authors： Nagy L,Kao HY,Love JD,Li C,Banayo E,Gooch JT,Krishna V,Chatterjee K,Evans RM,Schwabe JW

更新日期：1999-12-15 00:00:00

abstract：:The female mammary gland is a very dynamic organ that undergoes continuous tissue remodeling during adulthood. Although it is well established that the number of menstrual cycles and pregnancy (in this case transiently) increase the risk of breast cancer, the reasons are unclear. Growing clinical and experimental evid...

journal_title：Genes & development

authors： Rodriguez-Barrueco R,Nekritz EA,Bertucci F,Yu J,Sanchez-Garcia F,Zeleke TZ,Gorbatenko A,Birnbaum D,Ezhkova E,Cordon-Cardo C,Finetti P,Llobet-Navas D,Silva JM

更新日期：2017-03-15 00:00:00