Abstract:
UNLABELLED:We have shown that glycoprotein K (gK) and its interacting partner, the UL20 protein, play crucial roles in virion envelopment. Specifically, virions lacking either gK or UL20 fail to acquire an envelope, thus causing accumulation of capsids in the cytoplasm of infected cells. The herpes simplex virus 1 (HSV-1) UL37 protein has also been implicated in cytoplasmic virion envelopment. To further investigate the role of UL37 in virion envelopment, the recombinant virus DC480 was constructed by insertion of a 12-amino-acid protein C (protC) epitope tag within the UL37 amino acid sequence immediately after amino acid 480. The DC480 mutant virus expressed full-size UL37 as detected by the anti-protC antibody in Western immunoblots, accumulated unenveloped capsids in the cytoplasm of infected cells, and produced very small plaques on African green monkey kidney (Vero) cells that were similar in size to those produced by the UL20-null and UL37-null viruses. The DC480 virus replicated nearly 4 log less efficiently than the parental wild-type virus when grown on Vero cells. However, DC480 mutant virus titers increased nearly 20-fold when the virus was grown on FRT cells engineered to express the UL20 gene in comparison to the titers on Vero cells, while the UL37-null virus replicated approximately 20-fold less efficiently than the DC480 virus on FRT cells. Coimmunoprecipitation experiments and proximity ligation assays showed that gK and UL20 interact with the UL37 protein in infected cells. Collectively, these results indicate that UL37 interacts with the gK-UL20 protein complex to facilitate cytoplasmic virion envelopment. IMPORTANCE:Herpes simplex viruses acquire their final envelopes by budding into cytoplasmic membranes derived from the trans-Golgi network (TGN). The tegument proteins UL36 and UL37 are known to be transported to the TGN sites of virus envelopment and to function in virion envelopment, since mutants lacking UL37 accumulate capsids in the cytoplasm that are unable to bud into TGN membranes. Viral glycoprotein K (gK) also functions in cytoplasmic envelopment, in a protein complex with the membrane-associated protein UL20 (UL20mp). This work shows for the first time that the UL37 protein functionally interacts with gK and UL20 to facilitate cytoplasmic virion envelopment. This work may lead to the design of specific drugs that can interrupt UL37 interactions with the gK-UL20 protein complex, providing new ways to combat herpesviral infections.
journal_name
J Viroljournal_title
Journal of virologyauthors
Jambunathan N,Chouljenko D,Desai P,Charles AS,Subramanian R,Chouljenko VN,Kousoulas KGdoi
10.1128/JVI.00278-14subject
Has Abstractpub_date
2014-06-01 00:00:00pages
5927-35issue
11eissn
0022-538Xissn
1098-5514pii
JVI.00278-14journal_volume
88pub_type
杂志文章abstract::Open reading frame (ORF) E4 is a 353-base-pair ORF of bovine papillomavirus type 1. To determine the biological activities of this ORF in mouse C127 cells, we analyzed the effects of two constructed mutations which are predicted to prevent synthesis of ORF E4 proteins while leaving the amino acid sequence encoded by t...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.61.4.1248-1252.1987
更新日期:1987-04-01 00:00:00
abstract::The RNA genomes from the cardioviruses, hepatoviruses, and aphthoviruses encode two to five tandem pseudoknots within their 5' untranslated regions. These pseudoknots lie adjacent to a pyrimidine-rich sequence, which in cardio- and aphthoviruses takes the form of a homopolymeric poly(C) tract. Seven deletion mutations...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.70.11.8182-8186.1996
更新日期:1996-11-01 00:00:00
abstract::Human immunodeficiency virus type 1 (HIV-1) infection requires cell surface expression of CD4. Costimulation of CD8(+)/CD4(-) T lymphocytes by anti-CD3 and anti-CD28 antibodies or by allogeneic dendritic cells induced expression of CD4 and rendered these CD8 cells susceptible to HIV-1 infection. Naive CD45RA+ cells re...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.72.11.9054-9060.1998
更新日期:1998-11-01 00:00:00
abstract::We have characterized an inhibitory RNA element in the human immunodeficiency virus type 1 (HIV-1) gag coding sequence that prevents gag expression. The inhibition exerted by this element could be overcome by the presence of the Rev-responsive element in cis and of Rev protein in trans. To understand the mechanism of ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.66.12.7176-7182.1992
更新日期:1992-12-01 00:00:00
abstract::Clinical deterioration in human immunodeficiency virus type 1 (HIV-1) disease is associated with an increased viral burden in the peripheral blood and a loss of circulating CD4+ T cells. HIV-1 isolates obtained prior to this stage of disease often have a "slow-low," non-syncytium-inducing (NSI) phenotype, whereas thos...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.68.12.8188-8192.1994
更新日期:1994-12-01 00:00:00
abstract::A number of eucaryotic viruses have devised strategies to minimize the deleterious effects on protein synthesis caused by activation of the interferon-induced, double-stranded-RNA-activated protein kinase, P68. In a recent report, we described the down regulation of the P68 protein kinase in cells infected by human im...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.65.2.632-640.1991
更新日期:1991-02-01 00:00:00
abstract::The RNAs of replication-defective murine and primate type C transforming viruses were analyzed for the presence of nucleotide sequences homologous to the genomes of their respective helper type C viruses by using DNAs complementary (cDNA) to either the 5'-terminal (cDNA5') or total (cDNAtotal) nucleotide sequences of ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.26.3.570-576.1978
更新日期:1978-06-01 00:00:00
abstract::In polarized epithelial cells, the vesicular stomatitis virus glycoprotein is segregated to the basolateral plasma membrane, where budding of the virus takes place. We have generated recombinant viruses expressing mutant glycoproteins without the basolateral-membrane-targeting signal in the cytoplasmic domain. Though ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.76.8.4103-4107.2002
更新日期:2002-04-01 00:00:00
abstract::In an attempt to generate broadly cross-reactive, neutralizing monoclonal antibodies (MAbs) to simian immunodeficiency virus (SIV), we compared two immunization protocols using different preparations of oligomeric SIV envelope (Env) glycoproteins. In the first protocol, mice were immunized with soluble gp140 (sgp140) ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.74.17.7922-7935.2000
更新日期:2000-09-01 00:00:00
abstract::We recently found that a human T-cell leukemia virus type 1-infected cell line, MT-2, could support the replication of hepatitis C virus (HCV) (N. Kato, T. Nakazawa, T. Mizutani, and K. Shimotohno, Biochem. Biophys. Res. Commun. 206:863-869, 1995). In order to develop a culture system in which HCV replicates more effi...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.70.10.7219-7223.1996
更新日期:1996-10-01 00:00:00
abstract::A single phosphorylation event at T-antigen residue Thr124 regulates initiation of simian virus 40 DNA replication. To explore this regulatory process, a series of peptides were synthesized, centered on Thr124. These peptides contain a nuclear localization signal (NLS) and a recognition site for cyclin/Cdk kinases. Wh...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.76.23.11785-11792.2002
更新日期:2002-12-01 00:00:00
abstract::The influenza A virus (IAV) M2 protein is a multifunctional protein with critical roles in virion entry, assembly, and budding. M2 is targeted to the apical plasma membrane of polarized epithelial cells, and the interaction of the viral proteins M2, M1, HA, and NA near glycolipid rafts in the apical plasma membrane is...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01425-18
更新日期:2018-10-29 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.16.1.27-33.1975
更新日期:1975-07-01 00:00:00
abstract::Helicobacter pylori causes peptic ulcers and gastric cancer, which lead to significantly higher morbidity in Japan than elsewhere in the world. As bacteriophage (phage) and host bacteria coevolve, the study of H. pylori phages is important to extend understanding of the evolution and pathogenesis of H. pylori. Here we...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01767-12
更新日期:2012-10-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.64.2.886-889.1990
更新日期:1990-02-01 00:00:00
abstract::Purified Friend viruses obtained from chronically infected tissue cultures were studied under the electron microscope in an effort to correlate the fine structure of the particles to their leukemogenic activity under varied experimental conditions, i.e., temperature treatments and exposure to Tween 80, amyl acetate, o...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.2.4.365-375.1968
更新日期:1968-04-01 00:00:00
abstract::A sequence of polyadenylic acid, homogeneous in composition but heterogeneous in length, was isolated from complete pancreatic RNase digests of both middle and bottom RNAs of cowpea mosaic virus. The polyadenylic acid was 3'-terminal and occurred once per molecule. A fragment consisting of the polyadenylic acid and ap...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.26.2.243-248.1978
更新日期:1978-05-01 00:00:00
abstract::The putative envelope 2 (E2) gene of hepatitis C virus (HCV) contains a highly variable region referred to as hypervariable region 1 (HVR1). We hypothesized that this genetic variability is driven by immune selection pressure, rather than representing the accumulation of random mutations in a region with relatively li...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.74.7.3058-3066.2000
更新日期:2000-04-01 00:00:00
abstract::The replication of vaccinia virus is thought to take place exclusively in the cytoplasm of host cells. However, using DNA-DNA hybridization techniques, it can be shown that a significant fraction of the synthesis of vaccinia DNA takes place in the nucleus as well as the cytoplasm. The (3H) thymiding pulse-labeled vacc...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.15.2.305-315.1975
更新日期:1975-02-01 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:2009-12-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01088-17
更新日期:2017-10-13 00:00:00
abstract::Misfolded alpha-synuclein (αS) may exhibit a number of characteristics similar to those of the prion protein, including the apparent ability to spread along neuroanatomical connections. The demonstration for this mechanism of spread is largely based on the intracerebral injections of preaggregated αS seeds in mice, in...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00586-18
更新日期:2018-08-29 00:00:00
abstract::The hepatitis C virus (HCV) core gene is more conserved at the nucleic acid level than is necessary to preserve the sequence of the core protein, suggesting that it contains information for additional functions. We used a battery of anticore antibodies to test the hypothesis that the core gene directs the synthesis of...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01679-08
更新日期:2009-04-01 00:00:00
abstract::Two foot-and-mouth disease virus (FMDV) genome sequences have been determined for isolates collected from recent field outbreaks in North Africa (Egypt) and the Middle East (Palestinian Autonomous Territories). These data represent the first examples of complete genomic sequences for the FMDV SAT 2 topotype VII, which...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01231-12
更新日期:2012-08-01 00:00:00
abstract::The herpes simplex virus type 1 (HSV-1) ICP34.5 gene is a neurovirulence gene in mice. In addition, some ICP34.5 mutants have been reported to have a reduced efficiency of induced reactivation as measured by in vitro explantation of latently infected mouse ganglia. However, since spontaneous reactivation is almost non...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.69.5.3033-3041.1995
更新日期:1995-05-01 00:00:00
abstract::Human coronavirus NL63 (HCoV-NL63), a common human respiratory pathogen, is associated with both upper and lower respiratory tract disease in children and adults. Currently, no antiviral drugs are available to treat CoV infections; thus, potential drug targets need to be identified and characterized. Here, we identify...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02747-06
更新日期:2007-06-01 00:00:00
abstract::Six phages were isolated from sewage and from a lysogenic strain. Three of them, belonging to a new morphological group, had contractile tails and elongated heads with axial ratios of 2.4:1. Two phages, possessing short tails and very long heads with axial ratios of 3.5:1, were new isolates of an extremely rare group....
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.13.3.706-711.1974
更新日期:1974-03-01 00:00:00
abstract::The majority of HIV-1 infections around the world result from non-B clade HIV-1 strains. The CRF01_AE (AE) strain is seen principally in Southeast Asia. AE protease differs by approximately 10% in amino acid sequence from clade B protease and carries several naturally occurring polymorphisms that are associated with d...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00505-10
更新日期:2010-10-01 00:00:00
abstract:UNLABELLED:Since the 1960s, simian hemorrhagic fever virus (SHFV; Nidovirales, Arteriviridae) has caused highly fatal outbreaks of viral hemorrhagic fever in captive Asian macaque colonies. However, the source(s) of these outbreaks and the natural reservoir(s) of this virus remain obscure. Here we report the identifica...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02203-14
更新日期:2014-11-01 00:00:00
abstract::Measles virus (MV) isolated in B95a cells, a marmoset B-cell line, retains full pathogenicity for cynomolgus monkeys, while its derivative obtained by adaptation to the growth in Vero cells, a monkey kidney cell line, loses the pathogenic potential (F. Kobune, H. Sakata, and A. Sugiura, J. Virol. 64:700-705, 1990). He...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.72.11.8690-8696.1998
更新日期:1998-11-01 00:00:00