Abstract:
:The 86-kDa IE-2 protein of human cytomegalovirus is able to autoregulate its own expression via a short nucleotide sequence, termed the cis repression signal (CRS), that is located between the TATA box and the cap site of the IE-1/2 enhancer-promoter. Here we report that the 86-kDa IE-2 protein can interact directly with the CRS, thus demonstrating that IE-2 is a DNA-binding protein. This could be shown by both DNase I protection and gel retardation experiments using a procaryotically expressed IE-2 protein that was purified to near homogeneity. The interaction was sequence specific since a mutated form of the CRS that had previously been reported to be defective in mediating negative regulation could no longer compete for binding in DNase I protection experiments. In addition, an IE-2-reactive monoclonal antibody was able to elicit a supershift in gel retardation experiments, thus proving the presence of IE-2 within the protein-DNA complex. These results suggest that formation of a specific complex between an IE protein and a target sequence located near the cap site of its own gene promoter may be a common mechanism used by both alphaherpesviruses and betaherpesviruses to autoregulate IE gene transcription, although the sequence requirements differ between the two herpesviral subgroups.
journal_name
J Viroljournal_title
Journal of virologyauthors
Lang D,Stamminger Tdoi
10.1128/JVI.67.1.323-331.1993subject
Has Abstractpub_date
1993-01-01 00:00:00pages
323-31issue
1eissn
0022-538Xissn
1098-5514journal_volume
67pub_type
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.70.4.2643-2649.1996
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journal_title:Journal of virology
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doi:10.1128/JVI.5.4.507-512.1970
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pub_type: 杂志文章
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pub_type: 杂志文章
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更新日期:1999-11-01 00:00:00
abstract:UNLABELLED:The novel H7N9 avian influenza virus (AIV) was demonstrated to cause severe human respiratory infections in China. Here, we examined poultry specimens from live bird markets linked to human H7N9 infection in Hangzhou, China. Metagenomic sequencing revealed mixed subtypes (H5, H7, H9, N1, N2, and N9). Subsequ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00653-15
更新日期:2015-09-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00905-18
更新日期:2018-07-31 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.72.8.6475-6481.1998
更新日期:1998-08-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
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更新日期:2013-09-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.62.6.2164-2172.1988
更新日期:1988-06-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01054-08
更新日期:2008-10-01 00:00:00
abstract::Influenza A virus encodes M2, a proton channel that has been shown to be important during virus entry and assembly. In order to systematically investigate the role of the membrane-proximal residues in the M2 cytoplasmic tail in virus replication, we utilized scanning and directed alanine mutagenesis in combination wit...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.05970-11
更新日期:2011-12-01 00:00:00
abstract::The herpes simplex virus type 1 (HSV-1) capsid is a T=16 icosahedral shell that forms in the nuclei of infected cells. Capsid assembly also occurs in vitro in reaction mixtures created from insect cell extracts containing recombinant baculovirus-expressed HSV-1 capsid proteins. During capsid formation, the major capsi...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.72.5.3944-3951.1998
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journal_title:Journal of virology
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更新日期:2008-03-01 00:00:00
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pub_type: 杂志文章
doi:10.1128/JVI.38.2.430-437.1981
更新日期:1981-05-01 00:00:00
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pub_type: 杂志文章
doi:10.1128/JVI.65.6.2884-2894.1991
更新日期:1991-06-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02661-07
更新日期:2008-06-01 00:00:00
abstract::Recent evidence supports a role for vitamin K-dependent coagulation zymogens in adenovirus serotype 5 (Ad5, subgroup C) infection of hepatocytes. Here, we assessed the effect of virus-zymogen interaction on cellular transduction using a panel of fiber (f)-pseudotyped viruses derived from subgroup D (f47, f33, f24, f45...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02786-06
更新日期:2007-04-01 00:00:00
abstract::Monomers of the genomic strand of hepatitis delta virus RNA were transcribed in vitro and then delivered to NIH 3T3 fibroblasts by using a liposome fusion technique. After 7 days, genome replication was detected, but only in fibroblasts that stably expressed the delta antigen. Sequence analysis of the replicated produ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.64.6.3104-3107.1990
更新日期:1990-06-01 00:00:00
abstract::Utilizing a human cytomegalovirus-specific fusion inhibitor and an antiglycoprotein H antibody, we studied the role of virion fusion in interferon-stimulated gene (ISG) induction. Our results indicate that ISG induction does not occur when virion-mediated, post-high-affinity attachment events are inhibited by either r...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.78.12.6688-6691.2004
更新日期:2004-06-01 00:00:00
abstract::The EICP0 protein of equine herpesvirus 1 (EHV-1) is an early, viral regulatory protein that independently trans-activates EHV-1 immediate-early (IE), early, gamma1 late, and gamma2 late promoters. To assess whether this powerful trans-activator functions in conjunction with three other EHV-1 regulatory proteins to ac...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.74.3.1200-1208.2000
更新日期:2000-02-01 00:00:00
abstract::Vaccinia virus (VACV) stimulates long-term immunity against highly pathogenic orthopoxvirus infection of humans (smallpox) and mice (mousepox [ectromelia virus {ECTV}]) despite the lack of a natural host-pathogen relationship with either of these species. Previous research revealed that VACV is able to induce polyfunc...
journal_title:Journal of virology
pub_type: 杂志文章
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更新日期:2012-07-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.64.11.5412-5419.1990
更新日期:1990-11-01 00:00:00
abstract::In this study, we characterized the viral determinants of coreceptor usage in relation to susceptibility to antibody-mediated neutralization or enhancement of infectivity by using chimeras of three highly related human immunodeficiency virus type 1 (HIV-1) isolates of different phenotypes. We found that the V3 region ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.76.6.2827-2834.2002
更新日期:2002-03-01 00:00:00
abstract::Hepatitis C virus (HCV) contains two membrane-associated envelope glycoproteins, E1 and E2, which assemble as a heterodimer in the endoplasmic reticulum (ER). In this study, predictive algorithms and genetic analyses of deletion mutants and glycosylation site variants of the E1 glycoprotein were used to suggest that t...
journal_title:Journal of virology
pub_type: 杂志文章
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更新日期:2006-11-01 00:00:00