Abstract:
:The rpoH gene of Escherichia coli encodes sigma 32, the 32-kD sigma-factor responsible for the heat-inducible transcription of the heat shock genes. rpoH is transcribed from at least three promoters. Two of these promoters are recognized by RNA polymerase containing sigma 70, the predominant sigma-factor. We purified the factor responsible for recognizing the third rpoH promoter (rpoH P3) and identified it as RNA polymerase containing a novel sigma-factor with an apparent Mr of 24,000. This new sigma, which we call sigma E, is distinct from the known sigma factors in molecular weight and promoter specificity. sigma E holoenzyme will not recognize the sigma 70- or sigma 32-controlled promoters we tested, but it does transcribe the htrA gene, which is required for viability at temperatures greater than 42 degrees C. The in vivo role of sigma E is not known. The transcripts from the sigma E-controlled rpoH P3 and htrA promoters are most abundant at very high temperature, suggesting the sigma E holoenzyme may transcribe a second set of heat-inducible genes that are involved in growth at high temperature or in thermotolerance.
journal_name
Genes Devjournal_title
Genes & developmentauthors
Erickson JW,Gross CAdoi
10.1101/gad.3.9.1462subject
Has Abstractpub_date
1989-09-01 00:00:00pages
1462-71issue
9eissn
0890-9369issn
1549-5477journal_volume
3pub_type
杂志文章abstract::Although the transporter-like protein Patched (Ptc) is genetically implicated in reception of the extracellular Hedgehog (Hh) protein signal, a clear definition of the Hh receptor is complicated by the existence of additional Hh-binding proteins and, in Drosophila, by the lack of physical evidence for direct binding o...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.1870310
更新日期:2010-01-01 00:00:00
abstract::The chromo domain was identified as a homologous protein motif between Polycomb (Pc)--a member of the Pc-group genes encoding transcriptional repressors of the homeotic genes--and HP1--a heterochromatin-associated protein encoded by the suppressor of position effect variegation gene Su(var)205. Together with previous ...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.6.7.1241
更新日期:1992-07-01 00:00:00
abstract::We have investigated the role of erythroid Kruppel-like factor (EKLF) in expression of the human beta-globin genes in compound EKLF knockout/human beta-locus transgenic mice. EKLF affects only the adult mouse beta-globin genes in homozygous knockout mice; heterozygous mice are unaffected. Here we show that EKLF knocko...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.10.22.2894
更新日期:1996-11-15 00:00:00
abstract::Protein kinases are key regulators of cellular processes. In spite of considerable effort, a full understanding of the pathways they participate in remains elusive. We globally investigated the proteins that interact with the majority of yeast protein kinases using protein microarrays. Eighty-five kinases were purifie...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.1998811
更新日期:2011-04-01 00:00:00
abstract::By studying neuroectoderm formation in the absence of mesoderm and mesectoderm in mutants of the zygotic genes snail and twist, we have found that the number of neuroblasts is not reduced in these mutants, suggesting that mesoderm and mesectoderm are not essential for the initiation of neural development. The position...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.5.9.1577
更新日期:1991-09-01 00:00:00
abstract::Class Ia phosphatidylinositol 3 kinase (PI3K) is required for oncogenic receptor-mediated transformation; however, the individual roles of the two commonly expressed class Ia PI3K isoforms in oncogenic receptor signaling have not been elucidated in vivo. Here, we show that genetic ablation of p110α blocks tumor format...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.191973.112
更新日期:2012-07-15 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
pub_type: 杂志文章
doi:
更新日期:2000-02-15 00:00:00
abstract::Using an in vitro system in which a 5' splice site (5'SS) RNA oligo (AAG decreases GUAAGUAdT) is capable of inducing formation of U2/U4/U5/U6 snRNP complex we show that this oligo specifically binds to U4/U5/U6 snRNP and cross-links to U6 snRNA in the absence of U2 snRNP. Moreover, 5'SS RNA oligo bound to U4/U5/U6 snR...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.8.16.1962
更新日期:1994-08-15 00:00:00
abstract::Homeotic genes are expressed in spatially precise patterns during Drosophila development to control segmental differentiation. The Sex combs reduced (Scr) gene of the Antennapedia gene complex is involved in the determination of the labial and prothoracic segments of the embryo. To study both the wild-type pattern of ...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.1.7.716
更新日期:1987-09-01 00:00:00
abstract::In the yeast Saccharomyces cerevisiae, sequence-specific DNA binding by the origin recognition complex (ORC) is responsible for selecting origins of DNA replication. In metazoans, origin selection is poorly understood and it is unknown whether specific DNA binding by metazoan ORC controls replication. To address this ...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.13.20.2639
更新日期:1999-10-15 00:00:00
abstract::Interruption of translation in Escherichia coli can lead to the addition of an 11-residue carboxy-terminal peptide tail to the nascent chain. This modification is mediated by SsrA RNA (also called 10Sa RNA and tmRNA) and marks the tagged polypeptide for proteolysis. Degradation in vivo of lambda repressor amino-termin...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.12.9.1338
更新日期:1998-05-01 00:00:00
abstract::Medulloblastomas are among the most common malignancies in childhood, and they are associated with substantial mortality and morbidity. The molecular pathogenesis as well as the ontogeny of these neoplasms is still poorly understood. We have generated a mouse model for medulloblastoma by Cre-LoxP-mediated inactivation...
journal_title:Genes & development
pub_type: 杂志文章
doi:
更新日期:2000-04-15 00:00:00
abstract::The 134-bp enhancer region of the pancreatic elastase I gene is sufficient to direct pancreatic acinar cell-specific transcription in transgenic mice and in transfected cells in culture. Ten-base-pair scanner mutations in three separate enhancer domains that inactivate enhancer function in transfected pancreatic cells...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.3.5.687
更新日期:1989-05-01 00:00:00
abstract::Transcription by RNA polymerase II (RNAPII) is a dynamic process with frequent variations in the elongation rate. However, the physiological relevance of variations in RNAPII elongation kinetics has remained unclear. Here we show in yeast that a RNAPII mutant that reduces the transcription elongation rate causes wides...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.337212.120
更新日期:2020-07-01 00:00:00
abstract::Sonic hedgehog (Shh) signaling plays a critical role during development and carcinogenesis. While Gli family members govern the transcriptional output of Shh signaling, little is known how Gli-mediated transcriptional activity is regulated. Here we identify the actin-binding protein Missing in Metastasis (MIM) as a ne...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.1221804
更新日期:2004-11-15 00:00:00
abstract::Joints form within the developing skeleton through the segmentation and cavitation of initially continuous cartilage condensations. However, the molecular pathways controlling joint formation largely remain to be clarified. In particular, while several critical secreted signals have been identified, no transcription f...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.209239.112
更新日期:2013-03-01 00:00:00
abstract::Cell cycle checkpoints are critical for genomic stability. Rad17, a component of the checkpoint clamp loader complex (Rad17/Rfc2-5), is required for the response to DNA damage and replication stress. To explore the role of Rad17 in the maintenance of genomic integrity, we established somatic conditional alleles of RAD...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.1065103
更新日期:2003-04-15 00:00:00
abstract::During vascular development, endothelial platelet-derived growth factor B (PDGF-B) is critical for pericyte recruitment. Deletion of the conserved C-terminal heparin-binding motif impairs PDGF-BB retention and pericyte recruitment in vivo, suggesting a potential role for heparan sulfate (HS) in PDGF-BB function during...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.398207
更新日期:2007-02-01 00:00:00
abstract::Covalent modifications of the histone N tails play important roles in eukaryotic gene expression. Histone acetylation, in particular, is required for the activation of a subset of eukaryotic genes through the targeted recruitment of histone acetyltransferases. We have reported that a histone C tail modification, ubiqu...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.1149604
更新日期:2004-01-15 00:00:00
abstract::The HOP2 and MND1 genes are indispensable for meiotic recombination. The products of these genes associate to form a stable heterodimeric complex that binds DNA and stimulates the recombinase activity of Rad51 and Dmc1. Here we conduct molecular studies to delineate the action mechanism of the Hop2-Mnd1 complex. We pr...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.1563007
更新日期:2007-07-15 00:00:00
abstract::Genomic imprinting is an epigenetic phenomenon leading to parentally biased gene expression. Throughout the years, extensive efforts have been made to characterize the epigenetic marks underlying imprinting in animals and plants. As a result, DNA methylation asymmetries between parental genomes emerged as the primary ...
journal_title:Genes & development
pub_type: 杂志文章,评审
doi:10.1101/gad.332924.119
更新日期:2020-01-01 00:00:00
abstract::The RNA polymerase II (RNAPII) C-terminal domain kinase, CDK12, regulates genome stability, expression of DNA repair genes, and cancer cell resistance to chemotherapy and immunotherapy. In addition to its role in mRNA biosynthesis of DNA repair genes, we show here that CDK12 phosphorylates the mRNA 5' cap-binding repr...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.322339.118
更新日期:2019-04-01 00:00:00
abstract::The human Y-family DNA polymerases, Poliota, Poleta, and Polkappa, function in promoting replication through DNA lesions. However, because of their low fidelity, any involvement of these polymerases in DNA synthesis during base excision repair (BER) would be highly mutagenic. Mechanisms, therefore, must exist to exclu...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.1146103
更新日期:2003-11-15 00:00:00
abstract::P-element transformants of a single rRNA gene (rDNA) were used to investigate the relationship between the organization of the nucleolus organizer (NO) and rDNA function in Drosophila melanogaster. In situ hybridization to rRNA in polytene nuclei of salivary glands demonstrated that an rRNA gene can be transcribed at ...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.2.12b.1745
更新日期:1988-12-01 00:00:00
abstract::Disruptions in the use of skeletal muscle lead to muscle atrophy. After short periods of disuse, muscle atrophy is reversible, and even after prolonged periods of inactivity, myofiber degeneration is uncommon. The pathways that regulate atrophy, initiated either by peripheral nerve damage, immobilization, aging, catab...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.1318305
更新日期:2005-07-15 00:00:00
abstract::Extensive DNA elimination via a DNA breakage and rejoining process occurs during macronuclear development in the hypotrich ciliate Euplotes crassus. The excision process involves the removal of short, unique segments of DNA (internal eliminated sequences; IESs) and at least two highly repetitive families of transposon...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.7.1.84
更新日期:1993-01-01 00:00:00
abstract::In many eukaryotes, siRNAs bound to Argonaute proteins guide chromatin-modifying enzymes to complementary loci, resulting in transcriptional gene silencing. Multiple lines of evidence indicate that siRNAs base-pair with longer RNAs produced at target loci, but the possibility that siRNAs base-pair directly with DNA re...
journal_title:Genes & development
pub_type: 评论,杂志文章
doi:10.1101/gad.294900.116
更新日期:2016-12-15 00:00:00
abstract::Histone post-translational modifications regulate chromatin structure and function largely through interactions with effector proteins that often contain multiple histone-binding domains. While significant progress has been made characterizing individual effector domains, the role of paired domains and how they functi...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.220467.113
更新日期:2013-06-01 00:00:00
abstract::DNA repair associated with DNA replication is important for the conservation of genomic sequence information, whereas reconstitution of chromatin after replication sustains epigenetic information. We have isolated and characterized mutations in the BRU1 gene of Arabidopsis that suggest a novel link between these under...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.295404
更新日期:2004-04-01 00:00:00
abstract::We have identified protein kinase C-zeta (PKC-zeta) as a novel suppressor of neoplastic transformation caused by the v-raf oncogene. PKC-zeta overexpression drastically retards proliferation, abolishes anchorage-independent growth, and reverts the morphological transformation of v-raf-transformed NIH-3T3 cells. The mo...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.10.12.1455
更新日期:1996-06-15 00:00:00