Abstract:
:The Rev protein of human immunodeficiency virus type 1 (HIV-1) is essential for the expression of the structural genes of HIV-1. To determine whether a functional threshold level of Rev is required to allow efficient HIV-1 replication, CD4-positive HeLa cells, constitutively expressing a Rev-deficient provirus, were transfected with various quantities of a Rev-expressing plasmid. Compared with the quantity of the Rev-producing plasmid transfected, HIV-1 replication was distinctly nonlinear as measured by HIV-1 p24 antigen and HIV-1-specific RNA production. A quantitative RNA polymerase chain reaction (PCR) demonstrated that Rev mRNA expression was linearly correlated with the quantity of Rev-expressing plasmid which was transfected into these cells. These data suggest that a critical threshold of Rev is required for a highly productive HIV-1 infection. This threshold level of Rev may be involved in the generation and maintenance of HIV-1 proviral latency.
journal_name
J Viroljournal_title
Journal of virologyauthors
Pomerantz RJ,Seshamma T,Trono Ddoi
10.1128/JVI.66.3.1809-1813.1992subject
Has Abstractpub_date
1992-03-01 00:00:00pages
1809-13issue
3eissn
0022-538Xissn
1098-5514journal_volume
66pub_type
杂志文章abstract::Measles virus (MV) fusion requires the participation of both the fusion (F) and hemagglutinin (H) glycoproteins. The canine distemper virus fusion protein (CDVF) cannot substitute for the measles virus fusion protein (MVF) in this process. Introduction of restriction enzyme sites into the cDNAs of CDVF and MVF by site...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.68.11.7546-7548.1994
更新日期:1994-11-01 00:00:00
abstract::Mammalian cells infected with human adenoviruses (Ads) undergo an apoptotic response as a result of expression of the viral E1A proteins, and this process is suppressed by the viral E1B-19K protein. The intermediary steps in the Ad-induced apoptosis pathway are not fully resolved. The apical step in the canonical mamm...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00808-07
更新日期:2007-10-01 00:00:00
abstract::Recently we reported that in vitro RNA transcripts complementary to the genome of hepatitis delta virus (HDV) contain a unique site at which self-cleavage can occur. Subsequent studies showed that a similar self-cleavage site was present on in vitro RNA transcripts of genomic HDV RNA. The same self-cleavage reactions ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.62.12.4439-4444.1988
更新日期:1988-12-01 00:00:00
abstract:UNLABELLED:The interferon (IFN)-mediated antiviral response is a central aspect of host defense; however, viruses have evolved multiple strategies to counteract IFN-mediated responses in order to successfully infect the host. Herpes simplex virus 1 (HSV-1), a typical human-restricted DNA virus, is capable of counteract...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00186-16
更新日期:2016-05-27 00:00:00
abstract::Early stages of infection by the mouse polyomavirus have been studied using HeLa cells stably expressing small interfering RNA to protein disulfide isomerase (PDI). Infectibility measured by nuclear T antigen expression was reduced commensurately with the degree of PDI downregulation. Infectibility was restored by tra...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01117-06
更新日期:2006-11-01 00:00:00
abstract::Hamster cells are completely nonpermissive for the replication of human adenovirus type 12 (Ad12), whereas types 2 and 5 can replicate in hamster cells. The Ad5-transformed hamster cell line BHK297-C131, which carries the left terminal 18.7% of the Ad5 genome and expresses at least the viral E1A region, can somehow co...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.68.9.5476-5482.1994
更新日期:1994-09-01 00:00:00
abstract::The successful use of a dendrimeric peptide to protect pigs against challenge with foot-and-mouth disease virus (FMDV), which causes the most devastating animal disease worldwide, is described. Animals were immunized intramuscularly with a peptide containing one copy of a FMDV T-cell epitope and branching out into fou...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00401-08
更新日期:2008-07-01 00:00:00
abstract::Rabies, caused by rabies virus (RABV), is a fatal encephalitis in humans and other mammals, which continues to present a public health threat in most parts of the world. Our previous study demonstrated that Toll-like receptor 7 (TLR7) is essential in the induction of anti-RABV antibodies via the facilitation of germin...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00111-20
更新日期:2020-04-16 00:00:00
abstract::A high prevalence (42.6%) of hepatitis B virus (HBV) infection was suspected in 195 formerly captive orangutans due to a large number of serum samples which cross-reacted with human HBV antigens. It was assumed that such viral infections were contracted from humans during captivity. However, two wild orangutans were i...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.73.9.7860-7865.1999
更新日期:1999-09-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.71.1.853-857.1997
更新日期:1997-01-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.77.18.9906-9911.2003
更新日期:2003-09-01 00:00:00
abstract::Klebsiella pneumoniae MirM7 is a wild-type strain which grows as cocci at pH 7 and above and as rods at pH 6.5 and below. Cultures of this strain and an auxotrophic derivative, MirM7b, have been found to undergo spontaneous lysis after purification from possible contaminating viruses. Lysates always contained two phag...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.28.3.772-785.1978
更新日期:1978-12-01 00:00:00
abstract:UNLABELLED:Tetherin (BST2, CD317, or HM1.24) is a host cellular restriction factor that prevents the release of enveloped viruses by mechanically linking virions to the plasma membrane. The precise arrangement of tetherin molecules at the plasma membrane site of HIV-1 assembly, budding, and restriction is not well unde...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01880-15
更新日期:2015-11-18 00:00:00
abstract::The parameters governing the activity of the cloned T4 gene 23, which codes for the major T4 head protein, were analyzed. Suppressor-negative bacteria carrying wild-type T4 gene 23 cloned into plasmid pCR1 or pBR322 were infected with T4 gene 23 amber phage also carrying mutations in the following genes: (i) denA and ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.39.1.46-59.1981
更新日期:1981-07-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.67.5.2646-2654.1993
更新日期:1993-05-01 00:00:00
abstract::Human noroviruses are the most common nonbacterial cause of gastroenteritis outbreaks, with new variants and genotypes frequently emerging. The origin of these new viruses is unknown; however, animals have been proposed as a potential source, as human noroviruses have been detected in animal species. Here, we investig...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01492-20
更新日期:2021-01-13 00:00:00
abstract::The Epstein-Barr virus (EBV) genome contains an open reading frame, BHRF1, that encodes a presumptive membrane protein with sequence similarity to the proto-oncogene bcl2, which is linked to human B-cell follicular lymphoma. Potential roles for BHRF1 in EBV's ability to growth transform human B cells and to replicate ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.66.4.1899-1906.1992
更新日期:1992-04-01 00:00:00
abstract::The origin and role of the endonuclease activity associated with purified virions of simian virus 40, previously described by this and other laboratories, have been further investigated. We found that the enzymatic activity from virions of temperature-sensitive (ts) mutants is not more heat labile than that from wild-...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.17.2.352-362.1976
更新日期:1976-02-01 00:00:00
abstract::Human immunodeficiency virus (HIV) and simian immunodeficiency virus (SIV) primarily infect activated CD4(+) T cells but can infect macrophages. Surprisingly, ex vivo tetramer-sorted SIV-specific CD8(+) T cells that eliminated and suppressed viral replication in SIV-infected CD4(+) T cells failed to do so in SIV-infec...
journal_title:Journal of virology
pub_type: 杂志文章
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更新日期:2012-04-01 00:00:00
abstract::A number of naturally occurring hepatitis B virus mutants that cannot synthesize the virus precore protein have been identified. Such mutants have been associated with more severe forms of hepatitis, including fulminant hepatitis. The most common mutation observed is a substitution of G to A in the distal precore gene...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.66.9.5682-5684.1992
更新日期:1992-09-01 00:00:00
abstract::Previous analyses have demonstrated that adenovirus DNA is packaged into virions in vivo in a polar, left-to-right fashion. The packaging of viral DNA is dependent on cis-acting elements at the left end of the genome. In this report, we describe a genetic analysis of the sequences that are required for efficient packa...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.64.5.2047-2056.1990
更新日期:1990-05-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.74.23.11394-11397.2000
更新日期:2000-12-01 00:00:00
abstract::Parvovirus capsids are small but complex molecular machines responsible for undertaking many of the steps of cell infection, genome packing, and cell-to-cell as well as host-to-host transfer. The details of parvovirus infection of cells are still not fully understood, but the processes must involve small changes in th...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01871-16
更新日期:2017-01-03 00:00:00
abstract::A chimeric porcine circovirus (PCV1-2) with the capsid gene of pathogenic PCV2 cloned into the genomic backbone of nonpathogenic PCV1 is attenuated in pigs but elicits protective immunity against PCV2. In this study, short epitope tags were inserted into the C terminus of the capsid protein of the chimeric PCV1-2 vacc...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02294-10
更新日期:2011-05-01 00:00:00
abstract::Following infection by pairs of reovirus isolates consisting of combinations of reovirus T1 Lang, T2 Jones, or T3 Dearing, we found that one of the isolates interfered with the yield of progeny RNA derived from the other parents. The most significant interference was produced by T2 Jones or T3 Dearing, when mixed with...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.68.10.6667-6671.1994
更新日期:1994-10-01 00:00:00
abstract::A particles with the diameter of 70 to 80 nm were isolated from the cytoplasm of HEp-2, HeLa, and AO cells producing oncornavirus of Mason-Pfizer-like type. Most of the A particles banded at 1.23 to 1.24 g/ml, whereas 3 to 10% banded at 1.29 g/ml in equilibrium sucrose gradients. They banded at 1.30 g/ml in CsCl gradi...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.14.4.924-933.1974
更新日期:1974-10-01 00:00:00
abstract::The nuclear egress complex (NEC) is required for efficient translocation of newly synthesized herpesvirus nucleocapsids from the nucleus to the cytosol. It consists of the type II membrane protein pUL34 which interacts with pUL31 at the inner nuclear membrane (INM). To map regions within pUL34 required for nuclear mem...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00021-13
更新日期:2013-04-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.26.2.299-305.1978
更新日期:1978-05-01 00:00:00
abstract::Crucial steps in high-risk human papillomavirus (HR-HPV)-related carcinogenesis are the integration of HR-HPV into the host genome and loss of viral episomes. The mechanisms that promote cervical neoplastic progression are, however, not clearly understood. During HR-HPV infection, the HPV E5 protein is expressed in pr...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02114-10
更新日期:2011-05-01 00:00:00
abstract::The NS5A nonstructural protein of hepatitis C virus (HCV) has been shown to inhibit the cellular interferon (IFN)-induced protein kinase R (PKR). PKR mediates the host IFN-induced antiviral response at least in part by inhibiting mRNA translation initiation through phosphorylation of the alpha subunit of eukaryotic in...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.75.11.5090-5098.2001
更新日期:2001-06-01 00:00:00