Abstract:
:Retroviral integration has recently been shown to be nonrandom, favoring transcriptionally active regions of chromatin. However, the mechanism for integration site selection by retroviruses is not clear. We show here the occurrence of Alu-like motifs in the sequences flanking the reported viral integration sites that are significantly different from those obtained from the randomly picked sequences from the human genome, suggesting that unique primary sequence features exist in the genomic regions targeted by human immunodeficiency virus type 1 (HIV-1). Additionally, these sequences were preferentially bound by SATB1, the T lineage-restricted chromatin organizer, in vitro and in vivo. Alu repeats make up nearly 10% of the human genome and have been implicated in the regulation of transcription. To specifically isolate sequences flanking the viral integration sites and also harboring both Alu-like repeats and SATB1-binding sites, we combined chromatin immunoprecipitation with sequential PCRs. The cloned sequences flanking HIV-1 integration sites were specifically immunoprecipitated and amplified from the pool of anti-SATB1-immunoprecipitated genomic DNA fragments isolated from HIV-1 NL4.3-infected Jurkat T-cell chromatin. Moreover, many of these sequences were preferentially partitioned in the DNA associated tightly with the nuclear matrix and not in the chromatin loops. Strikingly, many of these regions were disfavored for integration when SATB1 was silenced, providing unequivocal evidence for its role in HIV-1 integration site selection. We propose that definitive sequence features such as the Alu-like motifs and SATB1-binding sites provide a unique chromatin context in vivo which is preferentially targeted by the HIV-1 integration machinery.
journal_name
J Viroljournal_title
Journal of virologyauthors
Kumar PP,Mehta S,Purbey PK,Notani D,Jayani RS,Purohit HJ,Raje DV,Ravi DS,Bhonde RR,Mitra D,Galande Sdoi
10.1128/JVI.01405-06subject
Has Abstractpub_date
2007-06-01 00:00:00pages
5617-27issue
11eissn
0022-538Xissn
1098-5514pii
JVI.01405-06journal_volume
81pub_type
杂志文章abstract::A rapid assay for retroviral reverse transcriptase activity released into the culture medium by infected cells was developed. With the assay, 4,000 clonally infected cell lines could be tested in a few hours. We have adapted the assay for use as a screen for the detection of spontaneous viral mutants. Mutants of Molon...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.38.1.239-248.1981
更新日期:1981-04-01 00:00:00
abstract::A member of the family Circoviridae, porcine circovirus type 2 (PCV2), is associated with postweaning multisystemic wasting syndrome (PMWS), a recent emerging disease worldwide. PCV2 is also found in clinically asymptomatic animals. This paradoxical finding makes the syndrome etiology challenging. We developed new ass...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.05156-11
更新日期:2011-11-01 00:00:00
abstract::Upon cell entry, the genomes of herpes simplex virus type 1 (HSV-1) and adenovirus (Ad) associate with distinct nuclear structures termed ND10 or promyelocytic leukemia (PML) nuclear bodies (NBs). PML NB morphology is altered or disrupted by specific viral proteins as replication proceeds. We examined whether adeno-as...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.78.1.389-398.2004
更新日期:2004-01-01 00:00:00
abstract::The genetic basis for the distinctive capacity of influenza A/WSN/33 (H0N1) virus (WSN virus) to produce plaques on bovine kidney (MDBK) cells was found to be related to virus neuraminidase. Recombinant viruses that derived only the neuraminidase of WSN virus were capable of producing plaques, whereas recombinant viru...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.24.1.170-176.1977
更新日期:1977-10-01 00:00:00
abstract::A cyanophage, PaV-LD, has been isolated from harmful filamentous cyanobacterium Planktothrix agardhii in Lake Donghu, a shallow freshwater lake in China. Here, we present the cyanophage's genomic organization and major structural proteins. The genome is a 95,299-bp-long, linear double-stranded DNA and contains 142 pot...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.06282-11
更新日期:2012-01-01 00:00:00
abstract::The complement pathway is involved in eliminating antigen immune complexes. However, the role of the C3 complement system remains largely unknown in influenza virus M2 extracellular (M2e) domain or hemagglutinin (HA) vaccine-mediated protection after vaccination. Using a C3 knockout (C3 KO) mouse model, we found that ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00969-18
更新日期:2018-09-26 00:00:00
abstract::RNA silencing is a conserved eukaryotic gene regulatory system in which sequence specificity is determined by small RNAs. Plant RNA silencing also acts as an antiviral mechanism; therefore, viral infection requires expression of a silencing suppressor. The mechanism and the evolution of silencing suppression are still...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.79.11.7217-7226.2005
更新日期:2005-06-01 00:00:00
abstract::The use of different viral promoters for the expression of the EBNA1 gene product appears to be a critical step in the regulation of Epstein-Barr virus latent gene expression and may reflect the extent of differentiation of B-cell hosts. Low-passage Burkitt lymphoma cell lines resemble immature B cells in that they ex...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.68.10.6421-6431.1994
更新日期:1994-10-01 00:00:00
abstract::Deletion of the terminal repeats (TR) from herpesvirus saimiri (HVS) renders it unable to produce infectious virus or generate plaques. However, a TR-deleted HVS bacterial artificial chromosome can form replication compartments. Complementation of this mutant shows that one copy of the TR, plus the right junction of t...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02579-06
更新日期:2007-06-01 00:00:00
abstract::The small RNA segment (S segment) of Uukuniemi (UUK) virus encodes two proteins, the nucleocapsid protein (N) and a nonstructural protein (NSs), by an ambisense strategy. The function of NSs has not been elucidated for any of the bunyaviruses expressing this protein. We have now expressed the N and NSs proteins in Sf9...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.66.7.4233-4241.1992
更新日期:1992-07-01 00:00:00
abstract::The adaptive immune system generates CD8 cytotoxic T lymphocytes (CTLs) as a major component of the protective response against viruses. Knowledge regarding the nature of the peptide sequences presented by HLA class I molecules and recognized by CTLs is thus important for understanding host-pathogen interactions. In t...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.78.24.13399-13408.2004
更新日期:2004-12-01 00:00:00
abstract::Most mammalian rotaviruses contain tripeptide amino acid sequences in outer capsid proteins VP4 and VP7 which have been shown to act as ligands for integrins alpha2beta1 and alpha4beta1. Peptides containing these sequences and monoclonal antibodies directed to these integrins block rotavirus infection of cells. Here w...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.74.1.228-236.2000
更新日期:2000-01-01 00:00:00
abstract::An adenovirus vector encoding murine Fas ligand (mFasL) under an inducible control was derived. In vivo ectopic expression of mFasL in murine livers induced an inflammatory cellular infiltration. Furthermore, ectopic expression of mFasL by myocytes did not allow prolonged vector-mediated transgene expression. Thus, ec...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.72.3.2483-2490.1998
更新日期:1998-03-01 00:00:00
abstract:UNLABELLED:Of the various genetic subtypes of human immunodeficiency virus types 1 and 2 (HIV-1 and HIV-2) and simian immunodeficiency virus (SIV), only in subtype C of HIV-1 is a genetically variant NF-κB binding site found at the core of the viral promoter in association with a subtype-specific Sp1III motif. How the ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00308-16
更新日期:2016-07-27 00:00:00
abstract::Adeno-associated virus (AAV) vectors are being considered for in vivo applications of gene therapy in the treatment of a variety of disorders. This study evaluates the biology of second-generation vectors based on the novel serotypes AAV7 and AAV8 and containing self-complementary genomes in the nonhuman primate liver...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00526-06
更新日期:2006-06-01 00:00:00
abstract::MVL2, an enveloped double-stranded DNA mycoplasmavirus, causes a nonlytic infection of Acholeplasma laidlawii leading to the establishment of a persistent infection. Persistently infected clones were found to be resistant to superinfection by homologous virus, but could be infected by heterologous virus. Cells in a pe...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.28.1.254-261.1978
更新日期:1978-10-01 00:00:00
abstract::The flavivirus dengue virus (DV) infects cells through a low-pH-triggered membrane fusion reaction mediated by the viral envelope protein E. E is an elongated transmembrane protein with three domains and is organized as a homodimer on the mature virus particle. During fusion, the E protein homodimer dissociates, inser...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00170-10
更新日期:2010-06-01 00:00:00
abstract::The recently developed subgenomic hepatitis C virus (HCV) replicons were limited by the fact that the sequence encoding the structural proteins was missing. Therefore, important information about a possible influence of these proteins on replication and pathogenesis and about the mechanism of virus formation could not...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.76.8.4008-4021.2002
更新日期:2002-04-01 00:00:00
abstract::Vectors derived from lentiviruses provide a promising gene delivery system. We examined the in vivo gene transfer efficiency and tissue or cell tropism of a feline immunodeficiency virus (FIV)-based lentiviral vector pseudotyped with the glycoproteins from Ross River Virus (RRV). RRV glycoproteins were efficiently inc...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.76.18.9378-9388.2002
更新日期:2002-09-01 00:00:00
abstract::We analyzed the susceptibility of 10 AKXD recombinant inbred (RI) mouse strains to lymphomas. These strains were derived from crosses of AKR/J, a highly lymphomatous strain, and DBA/2J, a weakly lymphomatous strain. Of the 10 strains analyzed, nine showed a high incidence of lymphoma development. As with the other 13 ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.67.4.2083-2090.1993
更新日期:1993-04-01 00:00:00
abstract::Despite being able to use the Bonzo coreceptor as efficiently as CCR5 in transfected cells, pediatric human immunodeficiency virus type 1 isolate P6 was unable to replicate in peripheral blood mononuclear cells (PBMC) lacking the CCR5 receptor. Furthermore, its replication in wild-type PBMC was completely inhibited by...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.73.4.3443-3448.1999
更新日期:1999-04-01 00:00:00
abstract::Recent evidence suggests that the type II feline coronavirus (FCoV) strains 79-1146 and 79-1683 have arisen from a homologous RNA recombination event between FCoV type I and canine coronavirus (CCV). In both cases, the template switch apparently took place between the S and M genes, giving rise to recombinant viruses ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.72.5.4508-4514.1998
更新日期:1998-05-01 00:00:00
abstract::DNA of the avian hepadnavirus, duck hepatitis B virus, was found to be integrated at low abundance into the cellular DNA extracted from the livers of infected ducklings. The frequency of integration was estimated to be at least one viral genome per 10(3) to 10(4) cells by 6 days postinfection. The structures of virus-...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.73.12.9710-9717.1999
更新日期:1999-12-01 00:00:00
abstract::An in vitro assay was developed to investigate endonuclease activity of Thogoto virus, a tick-borne orthomyxovirus. Endonuclease activity relied on an interaction between the 3' and 5' termini of virion RNA (vRNA) and not those of cRNA. Evidence was obtained that cap structures are cleaved directly from cap donors and...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.72.3.2305-2309.1998
更新日期:1998-03-01 00:00:00
abstract::We have previously shown that expression of the adenovirus E1A 12S or 13S products in NIH 3T3 fibroblasts induces susceptibility to the cytotoxic actions of tumor necrosis factor alpha (TNF alpha). A large number of studies have mapped the multiple biological functions of the 12S and 13S products to three highly conse...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.64.9.4115-4122.1990
更新日期:1990-09-01 00:00:00
abstract::Several aspects of the terminal stages of T4 head maturation were investigated using ts and am mutants blocked at single steps of the assembly pathway. We had previously found that cells infected with mutants of gene 13, e.g., tsN38 and amE609, accumulated both stable (10 to 20%)- and fragile (80%)-filled head precurs...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.17.2.550-567.1976
更新日期:1976-02-01 00:00:00
abstract::Cytomegalovirus (CMV) infection is the most common opportunistic infection in immunosuppressed individuals, such as transplant recipients or people living with HIV/AIDS, and congenital CMV is the leading viral cause of developmental disabilities in infants. Due to the highly species-specific nature of CMV, animal mode...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.05840-11
更新日期:2011-12-01 00:00:00
abstract::The replication of the single-stranded DNA (ssDNA) of parvovirus LuIII was studied in synchronized HeLa cells. After infection of the cells in early S phase, synthesis of a replicative form (RF) DNA became detectable as early as 9 h postinfection, i.e., after display of the cellular helper function(s) indispensable fo...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.17.3.841-853.1976
更新日期:1976-03-01 00:00:00
abstract::Caprine arthritis encephalitis virus (CAEV) is a lentivirus closely related to visna virus and more distantly to other lentiviruses, such as human immunodeficiency virus. The genomes of visna virus and CAEV contain a tat gene encoding a protein able to weakly transactivate its own long terminal repeat, suggesting that...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.69.9.5445-5454.1995
更新日期:1995-09-01 00:00:00
abstract::When influenza virus monoclonal antibody-resistant (mar) mutants are selected by incubation in vitro with excess antibody, 90 to 99% of the mutants are not detectable. This observation may be explained by encapsidation of mar mutant RNAs within phenotypically wild-type envelopes. This phenotypic hiding can be revealed...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.63.9.4107-4109.1989
更新日期:1989-09-01 00:00:00