Abstract:
:Infection of metazoan cells with some viruses alters the balance of cellular mRNA export to favor viral RNA export and to retain cellular transcripts in the nucleus. Here, evidence is presented to show that the herpes simplex virus 1 (HSV-1) essential regulatory protein ICP27, which inhibits host cell-splicing, resulting in the accumulation of unspliced transcripts in the nucleus, mediates RNA export of viral intronless mRNAs. ICP27 was shown to shuttle between the nucleus and cytoplasm through a leucine-rich nuclear export signal, which alone was able to direct the export of the heterologous green fluorescent protein. In vivo UV irradiation studies demonstrated that ICP27 could be crosslinked to poly(A)+ RNA in the nucleus and the cytoplasm, supporting a role in export. Furthermore, the amount of hnRNP A1, which has been implicated in the export of cellular spliced mRNAs, that was bound to poly(A)+ RNA in HSV-1-infected cells was reduced compared with uninfected cells. In addition, it was demonstrated that ICP27 bound seven intronless HSV-1 transcripts in both the nucleus and the cytoplasm, and export of these transcripts was diminished substantially during infection with an ICP27 null mutant virus. In contrast, ICP27 did not bind to two HSV-1 mRNAs that undergo splicing. Finally, binding of ICP27 to RNA in vivo required an arginine-glycine region that resembles an RGG box. These results indicate that ICP27 is an important viral export factor that promotes the transport of HSV-1 intronless RNAs.
journal_name
Genes Devjournal_title
Genes & developmentauthors
Sandri-Goldin RMdoi
10.1101/gad.12.6.868subject
Has Abstractpub_date
1998-03-15 00:00:00pages
868-79issue
6eissn
0890-9369issn
1549-5477journal_volume
12pub_type
杂志文章abstract::The gamma delta T-cell receptor (TCR) is the first TCR to be expressed in ontogeny in all vertebrates in which it has been examined thoroughly. Murine gamma delta cell-surface protein is detected by the fourteenth day of gestation. In this work, the activation of gamma delta RNA has been studied. Data indicate that th...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.4.8.1304
更新日期:1990-08-01 00:00:00
abstract::AMP-activated protein kinase (AMPK) is a sensor of energy status that maintains cellular energy homeostasis. It arose very early during eukaryotic evolution, and its ancestral role may have been in the response to starvation. Recent work shows that the kinase is activated by increases not only in AMP, but also in ADP....
journal_title:Genes & development
pub_type: 杂志文章,评审
doi:10.1101/gad.17420111
更新日期:2011-09-15 00:00:00
abstract::Transcriptional profiling is a powerful approach for understanding development and disease. Current cell type-specific RNA purification methods have limitations, including cell dissociation trauma or inability to identify all RNA species. Here, we describe "mouse thiouracil (TU) tagging," a genetic and chemical inters...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.205278.112
更新日期:2013-01-01 00:00:00
abstract::Previous genetic mosaic studies established that expression of the Drosophila bride of sevenless (boss) gene is required in photoreceptor neuron R8 for the development of photoreceptor neuron R7. This led to the proposal that boss encodes or regulates an R7-specific inductive cue. We have identified the boss gene base...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.4.11.1835
更新日期:1990-11-01 00:00:00
abstract::Pax3 is a key transcription factor implicated in development and human disease. To dissect the role of Pax3 in myogenesis and establish whether it is a repressor or activator, we generated loss- and gain-of-function alleles by targeting an nLacZ reporter and a sequence encoding the oncogenic fusion protein PAX3-FKHR i...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.281203
更新日期:2003-12-01 00:00:00
abstract::A conditional allele of type 1 protein phosphatase (glc7-129) in Saccharomyces cerevisiae causes first cycle arrest in G2/M, characterized by cells with a short spindle and high H1 kinase activity. Point-of-execution experiments indicate Glc7p function is required in G2/M just before anaphase for the completion of mit...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.13.5.517
更新日期:1999-03-01 00:00:00
abstract::The Purkinje cell protein 2 (Pcp-2) is expressed in cerebellar Purkinje cells and retinal bipolar neurons. To illuminate how Pcp-2 expression is restricted to only two neuronal types and to derive tools to express heterologous genes in these neuronal subpopulations, genomic sequences of the mouse Pcp-2 gene have been ...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.5.7.1136
更新日期:1991-07-01 00:00:00
abstract::Recombination catalyzed by the Flp site-specific recombinase involves breakage and joining of four DNA strands between two target substrates. The reaction is carried out in two steps of pairwise strand exchanges by a DNA-protein assembly in which four Flp monomers act cooperatively to execute strand cleavage and joini...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.11.18.2438
更新日期:1997-09-15 00:00:00
abstract::Bloom's syndrome (BS) is an autosomal recessive disorder characterized by a strong cancer predisposition. The defining feature of BS is extreme genome instability. The gene mutated in Bloom's syndrome, BLM, encodes a DNA helicase (BLM) of the RecQ family. BLM plays a role in homologous recombination; however, its exac...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.1609007
更新日期:2007-12-01 00:00:00
abstract::Long noncoding RNAs (lncRNAs) can trigger repressive chromatin, but how they recruit silencing factors remains unclear. In Schizosaccharomyces pombe, heterochromatin assembly on transcribed noncoding pericentromeric repeats requires both RNAi and RNAi-independent mechanisms. In Saccharomyces cerevisiae, which lacks a ...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.226019.113
更新日期:2013-09-01 00:00:00
abstract::The assembly of a nervous system requires the extension of axons and dendrites to specific regions where they are matched with appropriate synaptic targets. Although the cues that guide long-range outgrowth have been characterized extensively, additional mechanisms are required to explain short-range guidance in neura...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.259838.115
更新日期:2015-05-15 00:00:00
abstract::MicF, one of the first chromosomally encoded regulatory small RNAs (sRNAs) to be discovered, was found to modulate the expression of OmpF, an abundant outer membrane protein. Several recent papers have now shown that this is not an isolated case. At least five other sRNAs also regulate the synthesis of outer membrane ...
journal_title:Genes & development
pub_type: 杂志文章,评审
doi:10.1101/gad.1457506
更新日期:2006-09-01 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 Tat protein of human immunodeficiency virus type 1 (HIV-1) activates transcription following binding to nascent trans-activation response (TAR) RNA downstream of the transcription start site. Because Tat functions when bound to RNA, and in a position-dependent manner, it has been proposed that Tat works by a novel...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.5.12b.2496
更新日期:1991-12-01 00:00:00
abstract::Lethal yellow (Ay) is a mutation at the mouse agouti (a) locus that is associated with an all-yellow coat color, obesity, diabetes, tumors in heterozygotes, and preimplantation embryonic lethality in homozygotes. Previously, we cloned and characterized the wild-type agouti gene and demonstrated that it expresses a 0.8...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.7.7a.1203
更新日期:1993-07-01 00:00:00
abstract::In yeast, galactose triggers a rapid GAL4-dependent induction of galactose/melibiose regulon (GAL/MEL) gene transcription, and glucose represses this activation. We discovered that alterations in the physical state of the GAL4 protein correlate with activation and repression of the GAL/MEL genes. Using Western immunob...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.3.8.1157
更新日期:1989-08-01 00:00:00
abstract::Rosiglitazone (rosi) is a powerful insulin sensitizer, but serious toxicities have curtailed its widespread clinical use. Rosi functions as a high-affinity ligand for peroxisome proliferator-activated receptor γ (PPARγ), the adipocyte-predominant nuclear receptor (NR). The classic model, involving binding of ligand to...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.237628.114
更新日期:2014-05-01 00:00:00
abstract::DinI is a recently described negative regulator of the SOS response in Escherichia coli. Here we show that it physically interacts with RecA and prevents the binding of single-stranded DNA to RecA, which is required for the activation of the latter. DinI also displaces ssDNA from a stable RecA-DNA cofilament, thus eli...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.862901
更新日期:2001-02-15 00:00:00
abstract::In Drosophila the function of the epidermal growth factor (EGF) receptor is modulated zygotically by three EGF-like proteins: Spitz (Spi), which is a potent activator; Vein (Vn), which is a moderate activator; and Argos (Aos), which is an inhibitor. Chimeric molecules were constructed in which the EGF domain of Vn was...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.12.7.908
更新日期:1998-04-01 00:00:00
abstract::Activation of p53-mediated transcription is a critical cellular response to DNA damage. p53 stability and site-specific DNA-binding activity and, therefore, transcriptional activity, are modulated by post-translational modifications including phosphorylation and acetylation. Here we show that p53 is acetylated in vitr...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.12.18.2831
更新日期:1998-09-15 00:00:00
abstract::Integrin receptors for extracellular matrix are critical for cell motility, but the signals that determine when to stop are not known. Analysis of distal tip cell (DTC) migration during gonadogenesis in Caenorhabditis elegans has revealed the importance of transcription factor vab-3/Pax6 in regulating the alpha integr...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.1534807
更新日期:2007-07-01 00:00:00
abstract::The incorporation of histone H1 into chromatin during embryogenesis directs the specific repression of the Xenopus oocyte 5S rRNA genes. An increase in histone H1 content specifically restricts TFIIIA-activated transcription, and a decrease in histone H1 within chromatin facilitates the activation of the oocyte 5S rRN...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.8.10.1147
更新日期:1994-05-15 00:00:00
abstract::Pancreatic ductal adenocarcinoma (PDA) develops predominantly through pancreatic intraepithelial neoplasia (PanIN) and intraductal papillary mucinous neoplasm (IPMN) precursor lesions. Pancreatic acinar cells are reprogrammed to a "ductal-like" state during PanIN-PDA formation. Here, we demonstrate a parallel mechanis...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.256628.114
更新日期:2015-03-15 00:00:00
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::Faithful inheritance of genetic information requires that DNA be copied only once each cell cycle. Initiation of DNA replication involves the establishment of a prereplication complex (pre-RC) and subsequent activation by CDK/cyclins, converting the pre-RC to a post-RC. The origin recognition complex (ORC), Cdc6p, and...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.11.24.3375
更新日期:1997-12-15 00:00:00
abstract::Diverse developmental processes, such as neuronal growth cone migration and cell shape changes, are mediated by the interactions of cells with the extracellular matrix. We describe here a secreted molecule encoded by the Drosophila masquerade (mas) gene. Total loss of mas function causes defective muscle attachment. T...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.9.2.139
更新日期:1995-01-15 00:00:00
abstract::Many tumors continuously depend on the initiating oncogenes, but whether this extends to their downstream targets is unclear. In this issue of Genes & Development, Sodir and colleagues (pp. 907-916) demonstrate an essential role for endogenous Myc proteins in maintaining the tumor microenvironment, providing an unexpe...
journal_title:Genes & development
pub_type: 评论,杂志文章
doi:10.1101/gad.2053311
更新日期:2011-05-01 00:00:00
abstract::One of the central requirements for eukaryotic chromosome stability is the maintenance of the simple sequence tracts at telomeres. In this study, we use genetic and physical assays to reveal the nature of a novel mechanism by which telomere length is controlled. This mechanism, telomeric rapid deletion (TRD), is capab...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.10.11.1310
更新日期:1996-06-01 00:00:00
abstract::Morphogen gradients of secreted molecules play critical roles in the establishment of the spatial pattern of gene expression. During midgut development in Drosophila, secreted molecules of Decapentaplegic (Dpp) and Wingless (Wg) establish unique transcriptional regulation within target cells to specify the resultant c...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.12.17.2724
更新日期:1998-09-01 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