The Epstein-Barr virus major latent promoter Qp is constitutively active, hypomethylated, and methylation sensitive.

Abstract:

:Epstein-Barr virus (EBV) nuclear antigen 1 (EBNA1) is indispensable for viral DNA replication and episome maintenance in latency. Four promoters, Cp, Wp, Qp, and Fp, are known to drive EBNA1 expression. Here we show that the TATA-less Qp is constitutively active in a variety of EBV-positive [EBV(+)] tumors and cell lines, irrespective of the activities of other EBNA1 promoters, the type of viral latency, and the cell type. The transcription of highly regulated promoters such as the EBV Cp is known to be directly regulated by CpG methylation. To characterize the role of CpG methylation in the regulation of the constitutively active Qp, we performed bisulfite genomic sequencing and functional analyses using a methylation cassette transcriptional reporter assay. Twenty consecutive CpG sites (16 proximal to the Qp initiation site and 4 upstream of the adjacent Fp initiation site) were studied by bisulfite sequencing of DNA extracted from EBV(+) tumors and cell lines. Eighteen EBV(+) tumors of lymphoid (B, T, and NK cell) or epithelial origin and five Burkitt's lymphoma cell lines were studied. The 16 CpG sites proximal to Qp were virtually all unmethylated, but the 4 CpG sites upstream of the Fp initiation site were variably methylated. The methylation cassette assay showed that in vitro methylation of the Qp cassette (-172 to +32) resulted in strong repression of Qp activity in transient transfection. Thus, Qp is susceptible to repression by methylation but was found to be consistently hypomethylated and expressed in all tumors and tumor-derived cell lines studied.

journal_name

J Virol

journal_title

Journal of virology

authors

Tao Q,Robertson KD,Manns A,Hildesheim A,Ambinder RF

doi

10.1128/JVI.72.9.7075-7083.1998

subject

Has Abstract

pub_date

1998-09-01 00:00:00

pages

7075-83

issue

9

eissn

0022-538X

issn

1098-5514

journal_volume

72

pub_type

杂志文章
  • Vaccinia virus replication and cytopathic effect in cultures in phytohemagglutinin-treated human peripheral blood leukocytes.

    abstract::Titers of vaccinia virus consistently increased in cultures of washed phytohemagglutinin-treated, peripheral blood leukocytes of a vaccinated adult. Concomitantly, a gradual rise occurred in the numbers of infected leukocytes, as determined by the infective center assay. Increase in viral titer was accompanied by cell...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.2.8.787-792.1968

    authors: Miller G,Enders JF

    更新日期:1968-08-01 00:00:00

  • Syncytial mutations in the herpes simplex virus type 1 gK (UL53) gene occur in two distinct domains.

    abstract::Syncytial (syn) mutants of herpes simplex virus cause cell fusion. Many syn mutations map to the syn1 locus, which has been identified with the gK (UL53) gene. In this work, the gK genes of eight syn mutants derived from the KOS strain were sequenced to identify residues and, possibly, domains important for the fusion...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.68.12.8277-8281.1994

    authors: Dolter KE,Ramaswamy R,Holland TC

    更新日期:1994-12-01 00:00:00

  • Characterization of a baculovirus-encoded ATP-dependent DNA ligase.

    abstract::Sequence analysis of the Lymantria dispar multicapsid nucleopolyhedrovirus (LdMNPV) genome identified an open reading frame (ORF) encoding a 548-amino-acid (62-kDa) protein that showed 35% amino acid sequence identity with vaccinia virus ATP-dependent DNA ligase. Ligase homologs have not been reported from other bacul...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.72.11.9142-9149.1998

    authors: Pearson MN,Rohrmann GF

    更新日期:1998-11-01 00:00:00

  • Brd4-independent transcriptional repression function of the papillomavirus e2 proteins.

    abstract::The papillomavirus E2 protein is a critical viral regulatory protein with transcription, DNA replication, and genome maintenance functions. We have previously identified the cellular bromodomain protein Brd4 as a major E2-interacting protein and established that it participates in tethering bovine papillomavirus type ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.00447-07

    authors: Schweiger MR,Ottinger M,You J,Howley PM

    更新日期:2007-09-01 00:00:00

  • Interferon Regulatory Factor 7 Attenuates Chronic Gammaherpesvirus Infection.

    abstract::Gammaherpesviruses are ubiquitous pathogens that establish lifelong infections and are associated with a variety of malignancies, including lymphomas. Interferon regulatory factor 7 (IRF-7) is an innate immune transcription factor that restricts acute replication of diverse viruses, including murine gammaherpesvirus 6...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.01554-20

    authors: Johnson KE,Aurubin CA,Jondle CN,Lange PT,Tarakanova VL

    更新日期:2020-11-23 00:00:00

  • Varicella-zoster virus (VZV) transcription during latency in human ganglia: construction of a cDNA library from latently infected human trigeminal ganglia and detection of a VZV transcript.

    abstract::The entire varicella-zoster virus (VZV) genome appears to be present in latently infected human ganglia, but the extent of virus DNA transcription is unknown. Conventional methods to study virus gene transcripts by Northern (RNA) blotting are not feasible, since ganglia are small and VZV DNA is not abundant. To circum...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.68.12.7900-7908.1994

    authors: Cohrs RJ,Srock K,Barbour MB,Owens G,Mahalingam R,Devlin ME,Wellish M,Gilden DH

    更新日期:1994-12-01 00:00:00

  • Nonstructural protein 3 of bluetongue virus assists virus release by recruiting ESCRT-I protein Tsg101.

    abstract::The release of Bluetongue virus (BTV) and other members of the Orbivirus genus from infected host cells occurs predominantly by cell lysis, and in some cases, by budding from the plasma membrane. Two nonstructural proteins, NS3 and NS3A, have been implicated in this process. Here we show that both proteins bind to hum...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.80.1.460-473.2006

    authors: Wirblich C,Bhattacharya B,Roy P

    更新日期:2006-01-01 00:00:00

  • Biochemical Reconstitution of HIV-1 Assembly and Maturation.

    abstract::The assembly of an orthoretrovirus such as HIV-1 requires the coordinated functioning of multiple biochemical activities of the viral Gag protein. These activities include membrane targeting, lattice formation, packaging of the RNA genome, and recruitment of cellular cofactors that modulate assembly. In most previous ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.01844-19

    authors: Kucharska I,Ding P,Zadrozny KK,Dick RA,Summers MF,Ganser-Pornillos BK,Pornillos O

    更新日期:2020-02-14 00:00:00

  • A Noncanonical Basic Motif of Epstein-Barr Virus ZEBRA Protein Facilitates Recognition of Methylated DNA, High-Affinity DNA Binding, and Lytic Activation.

    abstract::The pathogenesis of Epstein-Barr virus (EBV) infection, including development of lymphomas and carcinomas, is dependent on the ability of the virus to transit from latency to the lytic phase. This conversion, and ultimately disease development, depends on the molecular switch protein, ZEBRA, a viral bZIP transcription...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.00724-19

    authors: Weber E,Buzovetsky O,Heston L,Yu KP,Knecht KM,El-Guindy A,Miller G,Xiong Y

    更新日期:2019-06-28 00:00:00

  • Wild-type measles virus with the hemagglutinin protein of the edmonston vaccine strain retains wild-type tropism in macaques.

    abstract::A major difference between vaccine and wild-type strains of measles virus (MV) in vitro is the wider cell specificity of vaccine strains, resulting from the receptor usage of the hemagglutinin (H) protein. Wild-type H proteins recognize the signaling lymphocyte activation molecule (SLAM) (CD150), which is expressed on...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.06517-11

    authors: Takeuchi K,Nagata N,Kato SI,Ami Y,Suzaki Y,Suzuki T,Sato Y,Tsunetsugu-Yokota Y,Mori K,Van Nguyen N,Kimura H,Nagata K

    更新日期:2012-03-01 00:00:00

  • Bacteriophage T4 baseplate components. I. Binding and location of the folic acid.

    abstract::Two different proteins with high affinities for the pteridine ring of folic acid have been used to determine the location of this portion of the folate molecule in the tail plate of T4D and other T-even bacteriophage particles. The two proteins used were (i) antibody specific for folic acid and (ii) the folate-binding...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.16.6.1391-1400.1975

    authors: Kozloff LM,Lute M,Crosby LK

    更新日期:1975-12-01 00:00:00

  • Apoptosis of hepatitis B virus-infected hepatocytes prevents release of infectious virus.

    abstract::Apoptosis of infected cells is critically involved in antiviral defense. Apoptosis, however, may also support the release and spread of viruses. Although the elimination of infected hepatocytes is required to combat hepatitis B virus (HBV) infection, it is still unknown which consequences hepatocyte apoptosis has for ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.00653-10

    authors: Arzberger S,Hösel M,Protzer U

    更新日期:2010-11-01 00:00:00

  • Valosin-containing protein (VCP/p97) is required for poliovirus replication and is involved in cellular protein secretion pathway in poliovirus infection.

    abstract::Poliovirus (PV) modifies membrane-trafficking machinery in host cells for its viral RNA replication. To date, ARF1, ACBD3, BIG1/BIG2, GBF1, RTN3, and PI4KB have been identified as host factors of enterovirus (EV), including PV, involved in membrane traffic. In this study, we performed small interfering RNA (siRNA) scr...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.00114-12

    authors: Arita M,Wakita T,Shimizu H

    更新日期:2012-05-01 00:00:00

  • Late-phase expression of a murine cytomegalovirus immediate-early antigen recognized by cytolytic T lymphocytes.

    abstract::The cloned murine cytolytic T-lymphocyte line IE1-IL and several sublines detect a murine cytomegalovirus immediate-early (IE) membrane determinant in conjunction with Ld class I major histocompatibility glycoprotein. The lines retained cytolytic activity, strict antigen specificity, and self-restriction even when ada...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.60.3.1125-1129.1986

    authors: Reddehase MJ,Fibi MR,Keil GM,Koszinowski UH

    更新日期:1986-12-01 00:00:00

  • Nerve growth factor deprivation results in the reactivation of latent herpes simplex virus in vitro.

    abstract::Primary sympathetic neuronal cultures were maintained for up to 5 weeks after inoculation with herpes simplex virus (HSV) without evidence of viral infection. Upon deprivation of nerve growth factor, the cultures produced infectious HSV, indicating that the cultures harbored latent HSV. This study demonstrates a funct...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.61.7.2311-2315.1987

    authors: Wilcox CL,Johnson EM Jr

    更新日期:1987-07-01 00:00:00

  • Contribution of glutamine residues in the helix 4-5 loop to capsid-capsid interactions in simian immunodeficiency virus of macaques.

    abstract:UNLABELLED:Following retrovirus entry, the viral capsid (CA) disassembles into its component capsid proteins. The rate of this uncoating process, which is regulated by CA-CA interactions and by the association of the capsid with host cell factors like cyclophilin A (CypA), can influence the efficiency of reverse transc...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.01388-14

    authors: Tipper C,Sodroski JG

    更新日期:2014-09-01 00:00:00

  • The measles virus hemagglutinin stalk: structures and functions of the central fusion activation and membrane-proximal segments.

    abstract:UNLABELLED:The measles virus (MeV) membrane fusion apparatus consists of a fusion protein trimer and an attachment protein tetramer. To trigger membrane fusion, the heads of the MeV attachment protein, hemagglutinin (H), bind cellular receptors while the 96-residue-long H stalk transmits the triggering signal. Structur...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.02846-13

    authors: Navaratnarajah CK,Kumar S,Generous A,Apte-Sengupta S,Mateo M,Cattaneo R

    更新日期:2014-06-01 00:00:00

  • Analysis by microinjection of the biological effects of site-directed mutagenesis in cloned avian leukosis viral DNAs.

    abstract::Cloned avian leukosis viral DNAs were mutagenized in the long terminal repeat, in the leader sequence for env mRNA, and at the poly-env junction. The effect of these mutations in the viral DNA upon its ability to direct virus production or env mRNA synthesis was analyzed by microinjecting the mutant DNAs into chicken ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.43.2.503-510.1982

    authors: Pugatsch T,Stacey DW

    更新日期:1982-08-01 00:00:00

  • Discrepancy between infectivity and antigenicity stabilization of oral poliovirus vaccine by a capsid-binding compound.

    abstract::Two hundred forty pyridazinamine derivatives were tested for the ability to stabilize the antigenicity and infectivity of oral poliovirus vaccine subjected to 45 degrees C for 2 h. Seven compounds stabilized the antigenicity of all three vaccine strains and neutralized the viral particles in a way that is reversible b...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.68.5.3397-3400.1994

    authors: Andries K,Rombaut B,Dewindt B,Boeyé A

    更新日期:1994-05-01 00:00:00

  • Spatial localization of the Ebola virus glycoprotein mucin-like domain determined by cryo-electron tomography.

    abstract::The Ebola virus glycoprotein mucin-like domain (MLD) is implicated in Ebola virus cell entry and immune evasion. Using cryo-electron tomography of Ebola virus-like particles, we determined a three-dimensional structure for the full-length glycoprotein in a near-native state and compared it to that of a glycoprotein la...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.00870-14

    authors: Tran EE,Simmons JA,Bartesaghi A,Shoemaker CJ,Nelson E,White JM,Subramaniam S

    更新日期:2014-09-01 00:00:00

  • Expanded tropism and altered activation of a retroviral glycoprotein resistant to an entry inhibitor peptide.

    abstract::The envelope of class I viruses can be a target for potent viral inhibitors, such as the human immunodeficiency virus type 1 (HIV-1) inhibitor enfuvirtide, which are derived from the C-terminal heptad repeat (HR2) of the transmembrane (TM) subunit. Resistance to an HR2-based peptide inhibitor of a model retrovirus, su...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.80.1.353-359.2006

    authors: Amberg SM,Netter RC,Simmons G,Bates P

    更新日期:2006-01-01 00:00:00

  • The precore gene of the woodchuck hepatitis virus genome is not essential for viral replication in the natural host.

    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

    authors: Chen HS,Kew MC,Hornbuckle WE,Tennant BC,Cote PJ,Gerin JL,Purcell RH,Miller RH

    更新日期:1992-09-01 00:00:00

  • Pivotal Role of Receptor-Interacting Protein Kinase 1 and Mixed Lineage Kinase Domain-Like in Neuronal Cell Death Induced by the Human Neuroinvasive Coronavirus OC43.

    abstract::Human coronaviruses (HCoV) are respiratory pathogens with neuroinvasive, neurotropic, and neurovirulent properties, highlighting the importance of studying the potential implication of these viruses in neurological diseases. The OC43 strain (HCoV-OC43) was reported to induce neuronal cell death, which may participate ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.01513-16

    authors: Meessen-Pinard M,Le Coupanec A,Desforges M,Talbot PJ

    更新日期:2016-12-16 00:00:00

  • Broad Anti-Hepatitis C Virus (HCV) Antibody Responses Are Associated with Improved Clinical Disease Parameters in Chronic HCV Infection.

    abstract:UNLABELLED:During hepatitis C virus (HCV) infection, broadly neutralizing antibody (bNAb) responses targeting E1E2 envelope glycoproteins are generated in many individuals. It is unclear if these antibodies play a protective or a pathogenic role during chronic infection. In this study, we investigated whether bNAb resp...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.02669-15

    authors: Swann RE,Cowton VM,Robinson MW,Cole SJ,Barclay ST,Mills PR,Thomson EC,McLauchlan J,Patel AH

    更新日期:2016-04-14 00:00:00

  • Role of the SP2 domain and its proteolytic cleavage in HIV-1 structural maturation and infectivity.

    abstract::HIV-1 buds as an immature, noninfectious virion. Proteolysis of its main structural component, Gag, is required for morphological maturation and infectivity and leads to release of four functional domains and the spacer peptides SP1 and SP2. The N-terminal cleavages of Gag and the separation of SP1 from CA are all ess...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.01704-12

    authors: de Marco A,Heuser AM,Glass B,Kräusslich HG,Müller B,Briggs JA

    更新日期:2012-12-01 00:00:00

  • Two putative alpha-helical domains of human immunodeficiency virus type 1 Vpr mediate nuclear localization by at least two mechanisms.

    abstract::To identify the domains of Vpr that are involved nuclear localization, we transfected HeLa cells with a panel of expression vectors that encode mutant Vpr protein with deletions or substitutions within putative domains. Immunofluorescence staining of transfected cells revealed that wild-type Vpr was localized predomin...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/jvi.74.15.7179-7186.2000

    authors: Kamata M,Aida Y

    更新日期:2000-08-01 00:00:00

  • Aleutian disease parvovirus infection of mink and ferrets elicits an antibody response to a second nonstructural viral protein.

    abstract::A second nonstructural protein of the Aleutian disease parvovirus was predicted from nucleotide sequence analysis and a detailed transcription map. Western immunoblotting analysis showed that infected mink and ferrets show an antibody response to this predicted protein. ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.64.4.1859-1860.1990

    authors: Porter DD,Porter HG,Larsen AE

    更新日期:1990-04-01 00:00:00

  • Pattern recognition receptor MDA5 modulates CD8+ T cell-dependent clearance of West Nile virus from the central nervous system.

    abstract::Many viruses induce type I interferon responses by activating cytoplasmic RNA sensors, including the RIG-I-like receptors (RLRs). Although two members of the RLR family, RIG-I and MDA5, have been implicated in host control of virus infection, the relative role of each RLR in restricting pathogenesis in vivo remains un...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.01403-13

    authors: Lazear HM,Pinto AK,Ramos HJ,Vick SC,Shrestha B,Suthar MS,Gale M Jr,Diamond MS

    更新日期:2013-11-01 00:00:00

  • Human cytomegalovirus US3 chimeras containing US2 cytosolic residues acquire major histocompatibility class I and II protein degradation properties.

    abstract::Human cytomegalovirus (HCMV) glycoprotein US2 increases the proteasome-mediated degradation of major histocompatibility complex (MHC) class I heavy chain (HC), class II DR-alpha and DM-alpha proteins, and HFE, a nonclassical MHC protein. US2-initiated degradation of MHC proteins apparently involves the recruitment of ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/jvi.77.8.4731-4738.2003

    authors: Chevalier MS,Johnson DC

    更新日期:2003-04-01 00:00:00

  • Interactions of murine leukemia virus core components: characterization of reverse transcriptase packaged in the absence of 70S genomic RNA.

    abstract::Virions produced by cells in the presence of actinomycin D (Act D virions) contain reverse transcriptase but are deficient in 70S genomic RNA. To assess the role of genomic RNA in encapsidation of a functional reverse transcriptase and to study the interaction of the enzyme and its template in the cores of intact viri...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.24.2.478-488.1977

    authors: Gerwin BI,Levin JG

    更新日期:1977-11-01 00:00:00