Abstract:
:The active site serine of the acetylesterase of influenza C virus was localized to amino acid 71 of the hemagglutinin-esterase protein by affinity labeling with 3H-labeled diisopropylfluorophosphate. This serine and the adjacent amino acids (Phe-Gly-Asp-Ser) are part of a consensus sequence motif found in serine hydrolases. Since comparative analysis failed to reveal esterase sequence similarities with other serine hydrolases, we suggest that this viral enzyme is a serine hydrolase constituting a new family of serine esterases. Furthermore, we found that the influenza C virus esterase was inhibited by isocoumarin derivatives, with 3,4-dichloroisocoumarin being the most potent inhibitor. Addition of this compound prevented elution of influenza C virus from erythrocytes and inhibited virus infectivity, possibly through inhibition of virus entry into cells.
journal_name
J Viroljournal_title
Journal of virologyauthors
Vlasak R,Muster T,Lauro AM,Powers JC,Palese Pdoi
10.1128/JVI.63.5.2056-2062.1989subject
Has Abstractpub_date
1989-05-01 00:00:00pages
2056-62issue
5eissn
0022-538Xissn
1098-5514journal_volume
63pub_type
杂志文章abstract::The inclusion of Mimiviridae members in the putative monophyletic nucleocytoplasmic large DNA virus (NCLDV) group is based on genomic and phylogenomic patterns. This shows that, along with other viral families, they share a set of genes known as core or "hallmark genes," including the gene for the major capsid protein...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01782-17
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abstract::The hepatitis E virus (HEV), a nonenveloped RNA virus, is the causative agent of hepatitis E. The mode by which HEV attaches to and enters into target cells for productive infection remains unidentified. Open reading frame 2 (ORF2) of HEV encodes its major capsid protein, pORF2, which is likely to have the determinant...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00717-09
更新日期:2009-12-01 00:00:00
abstract::A novel swine-origin H1N1 influenza virus [A(H1N1)pdm09 virus] caused the 2009 influenza pandemic. Most patients exhibited mild symptoms similar to seasonal influenza, but some experienced severe clinical signs and, in the worst cases, died. Such differences in symptoms are generally associated with preexisting medica...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01565-12
更新日期:2013-02-01 00:00:00
abstract::Immunization of mice with DNA encoding the influenza virus hemagglutinin (HA) affords complete protection against lethal influenza virus infection and the means to investigate the mechanisms of B-cell responsiveness to virus challenge. Using a single-cell enzyme-linked immunospot assay, we sought to determine the loca...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.69.12.7712-7717.1995
更新日期:1995-12-01 00:00:00
abstract::Although highly active antiretroviral therapy (HAART) for human immunodeficiency virus type 1 (HIV-1) infection can reduce levels of HIV-1 RNA in plasma to below the limit of detection, replication-competent forms of the virus persist in all infected individuals. One form of persistence involves a stable reservoir of ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.76.18.9481-9492.2002
更新日期:2002-09-01 00:00:00
abstract::Immunosuppressed patients are at risk for developing Epstein-Barr Virus (EBV)-positive lymphomas that express the major EBV oncoprotein, LMP1. Although increasing evidence suggests that a small number of lytically infected cells may promote EBV-positive lymphomas, the impact of enhanced lytic gene expression on the ab...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00770-12
更新日期:2012-08-01 00:00:00
abstract::The Middle East respiratory syndrome coronavirus (MERS-CoV) nonstructural protein 16 (nsp16) is an S-adenosyl-l-methionine (SAM)-dependent 2'-O-methyltransferase (2'-O-MTase) that is thought to methylate the ribose 2'-OH of the first transcribed nucleotide (N1) of viral RNA cap structures. This 2'-O-MTase activity is ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02217-16
更新日期:2017-02-14 00:00:00
abstract::The NS5A protein of hepatitis C virus (HCV) plays an important but undefined role in viral RNA replication. NS5A has been proposed to be a three-domain protein, and the crystal structure of the well-conserved amino-terminal domain I has been determined. The remaining two domains of NS5A, designated domains II and III,...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00328-07
更新日期:2008-02-01 00:00:00
abstract::SE21Q1b, a Rous sarcoma virus mutant which packages cellular rather than viral RNA, is competent for infection of quail cells and can transmit defective transforming retrovirus genes. Stably transformed recipient clones have been obtained by using this mutant. ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.38.1.380-382.1981
更新日期:1981-04-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.76.16.8244-8251.2002
更新日期:2002-08-01 00:00:00
abstract::Avian leukosis virus subgroup J (ALV-J), an exogenous avian retrovirus, is thought to have evolved by recombination with the highly identical env gene of the endogenous avian retrovirus EAV-HP. Embryonic expression of EAV-HP env has been suggested to be associated with the induction of immunological tolerance, a featu...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.75.23.11935-11938.2001
更新日期:2001-12-01 00:00:00
abstract::Kaposi's sarcoma-associated herpesvirus (KSHV) is linked to several neoplastic diseases: Kaposi's sarcoma, primary effusion lymphoma (PEL), and multicentric Castleman's disease (MCD). KSHV replicates actively, via a controlled gene expression program, but can also remain latent. It had been thought that the transition...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.06617-11
更新日期:2012-04-01 00:00:00
abstract:UNLABELLED:Human immunodeficiency virus type 1 (HIV-1) replication in dendritic cells (DCs) is restricted by SAMHD1. This factor is counteracted by the viral protein Vpx; Vpx is found in HIV-2 and simian immunodeficiency virus (SIV) from sooty mangabeys (SIVsm) or from macaques (SIVmac) but is absent from HIV-1. We pre...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.03057-13
更新日期:2014-05-01 00:00:00
abstract::Envelope glycoprotein E(rns) of classical swine fever virus (CSFV) has been shown to contain RNase activity and is involved in virus infection. Two short regions of amino acids in the sequence of E(rns) are responsible for RNase activity. In both regions, histidine residues appear to be essential for catalysis. They w...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.72.1.151-157.1998
更新日期:1998-01-01 00:00:00
abstract::Human herpesviruses encode posttranscriptional activators that are believed to up-regulate viral replication by facilitating early and late gene expression. We have reported previously that the Epstein-Barr virus protein EB2 (also called M or SM) promotes nuclear export of RNAs that are poor substrates for spliceosome...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.74.13.6068-6076.2000
更新日期:2000-07-01 00:00:00
abstract::Protein kinase activity is associated with both the extracellular and the occluded forms of Autographa californica nuclear polyhedrosis virus, a baculovirus. Serine and threonine are the predominant amino acids phosphorylated by the kinase activity associated with both viral forms; no phosphotyrosine was detected. The...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.46.1.275-278.1983
更新日期:1983-04-01 00:00:00
abstract::The retinoblastoma tumor suppressor protein (pRb) can associate with the transforming proteins of several DNA tumor viruses, including the large T antigen encoded by polyomavirus (Py T Ag). Although pRb function is critical for regulating progression from G1 to S phase, a role for pRb in S phase has not been demonstra...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.73.4.3004-3013.1999
更新日期:1999-04-01 00:00:00
abstract::Reciprocal three-factor crosses and the use of a partial revertant of a putative ribonucleotide reductase mutant of Escherichia coli B/5 as indicator have made it possible to map denA (deficient in endonuclease II) between nrd-11 (ribonucleotide reductase gene B) and amM69 (gene 63) on the bacteriophage T4 chromosome....
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.9.1.184-186.1972
更新日期:1972-01-01 00:00:00
abstract::From the results of transient plasmid-based replication assays, it has been postulated that homologous regions (hrs) of Autographa californica nuclear polyhedrosis virus (AcMNPV) function as origins of viral DNA replication. However, these assays vary in specificity according to the methodology used and may not be dep...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.70.10.6967-6972.1996
更新日期:1996-10-01 00:00:00
abstract::The region of the UL component of the herpes simplex virus type 1 genome between nucleotides 17,793 and 25,150 includes three open reading frames that code for the protein products of the UL8, UL9, and UL10 genes (D.J. McGeogh, M.A. Dalrymple, A.J. Davison, A. Dolan, M.C. Frame, D. McNab, L.J. Perry, J.E. Scott, and P...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.68.7.4251-4261.1994
更新日期:1994-07-01 00:00:00
abstract::A short sequence, located between the A14L and A15L open reading frames (ORFs) of vaccinia virus, was predicted to encode a hydrophobic protein of 53 amino acids that is conserved in orthopoxviruses, leporipoxviruses, yatapoxiruses, and molluscipoxviruses. We constructed a recombinant vaccinia virus with a 10-codon ep...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.74.9.4085-4092.2000
更新日期:2000-05-01 00:00:00
abstract::Human parainfluenza type 2 virus (hPIV-2)-infected HeLa (HeLa-CA) cells and hPIV-2 V-expressing HeLa (HeLa-V) cells show high resistance to alpha/beta interferons (IFN-alpha/beta) irrespective of whether vesicular stomatitis virus or Sindbis virus is used as a challenge virus. When Sindbis virus is used, these cells s...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.75.19.9165-9176.2001
更新日期:2001-10-01 00:00:00
abstract::Zinc finger antiviral protein (ZAP) is a host factor that specifically inhibits the replication of certain viruses. There are two ZAP isoforms arising from alternative splicing, which differ only at the C termini. It was recently reported that the long isoform (ZAPL) promotes proteasomal degradation of influenza A vir...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01909-16
更新日期:2017-01-03 00:00:00
abstract::In Epstein-Barr virus (EBV)-carrying nonproducer Raji cells, the induction of the viral replicative cycle by chemical treatment is limited to only the early stage and viral DNA synthesis is totally inhibited. We previously showed the absence of two messenger RNAs that are encoded by the BamHI-A fragment of the EBV gen...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.69.11.7309-7314.1995
更新日期:1995-11-01 00:00:00
abstract::Current L1 virus-like particle (VLP) vaccines provide type-restricted protection against a small subset of the human papillomavirus (HPV) genotypes associated with cervical cancer, necessitating continued cytologic screening of vaccinees. Cervical cancer is most problematic in countries that lack the resources for scr...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01577-07
更新日期:2007-11-01 00:00:00
abstract::Poliovirus proteins 3A and 3AB are small, membrane-binding proteins that play multiple roles in viral RNA replication complex formation and function. In the infected cell, these proteins associate with other viral and cellular proteins as part of a supramolecular complex whose structure and composition are unknown. We...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02398-10
更新日期:2011-05-01 00:00:00
abstract::Lentiviruses have in their transmembrane glycoprotein (TM) a highly immunogenic structure referred to as the principal immunodominant domain (PID). The PID forms a loop of 5 to 7 amino acids between two conserved cysteines. Previous studies showed that envelope (Env) glycoprotein functions of feline immunodeficiency v...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.73.7.5698-5706.1999
更新日期:1999-07-01 00:00:00
abstract::Griffithsin, which binds N-linked glycans on gp120 to prevent HIV entry, has the most potent HIV-1 inhibitory activity described for any antiviral lectin and is being developed for topical preexposure prophylaxis. The current studies were designed to further assess its potential by exploring its activity against herpe...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00012-13
更新日期:2013-06-01 00:00:00
abstract::The major human tRNA(Lys) isoacceptors, and, are selectively packaged into human immunodeficiency virus type 1 (HIV-1) during assembly, where acts as a primer for reverse transcription. Lysyl-tRNA synthetase (LysRS) is also incorporated into HIV-1, independently of tRNA(Lys), via its interaction with Gag, and is a str...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.77.18.9817-9822.2003
更新日期:2003-09-01 00:00:00
abstract::Coevolution of virus and host is a process that emerges in persistent virus infections. Here we studied the coevolutionary development of coxsackievirus B3 (CVB3) and cardiac myocytes representing the major target cells of CVB3 in the heart in a newly established persistently CVB3-infected murine cardiac myocyte cell ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00621-11
更新日期:2011-12-01 00:00:00