Neutralizing antibodies decrease the envelope fluidity of HIV-1.

Abstract:

:For successful penetration of HIV-1, the formation of a fusion pore may be required in order to accumulate critical numbers of fusion-activated gp41 with the help of fluidization of the plasma membrane and viral envelope. An increase in temperature to 40 degrees C after viral adsorption at 25 degrees C enhanced the infectivity by 1.4-fold. The enhanced infectivity was inhibited by an anti-CXCR4 peptide, T140, and anti-V3 monoclonal antibodies (0.5beta and 694/98-D) by post-attachment neutralization, but not by non-neutralizing antibodies (670-30D and 246-D) specific for the C5 of gp120 and cluster I of gp41, respectively. Anti-HLA-II and an anti-HTLV-I gp46 antibody, LAT27, neutralized the molecule-carrying HIV-1(C-2(MT-2)). The anti-V3 antibodies suppressed the fluidity of the HIV-1(C-2) envelope, whereas the non-neutralizing antibodies did not. The anti-HLA-II antibody decreased the envelope fluidity of HIV-1(C-2(MT-2)), but not that of HIV-1(C-2). Therefore, fluidity suppression by these antibodies represents an important neutralization mechanism, in addition to inhibition of viral attachment.

journal_name

Virology

journal_title

Virology

authors

Harada S,Monde K,Tanaka Y,Kimura T,Maeda Y,Yusa K

doi

10.1016/j.virol.2007.08.021

subject

Has Abstract

pub_date

2008-01-05 00:00:00

pages

142-50

issue

1

eissn

0042-6822

issn

1096-0341

pii

S0042-6822(07)00556-9

journal_volume

370

pub_type

杂志文章

相关文献

VIROLOGY文献大全
  • In vitro strain adaptation of CWD prions by serial protein misfolding cyclic amplification.

    abstract::We used serial protein misfolding cyclic amplification (sPMCA) to amplify the D10 strain of CWD prions in a linear relationship over two logs of D10 dilutions. The resultant PMCA-amplified D10 induced terminal TSE disease in CWD-susceptible Tg(cerPrP)1536 mice with a survival time approximately 80 days shorter than th...

    journal_title:Virology

    pub_type: 杂志文章

    doi:10.1016/j.virol.2008.09.023

    authors: Meyerett C,Michel B,Pulford B,Spraker TR,Nichols TA,Johnson T,Kurt T,Hoover EA,Telling GC,Zabel MD

    更新日期:2008-12-20 00:00:00

  • Identification of amino acid substitutions associated with neutralization phenotype in the human immunodeficiency virus type-1 subtype C gp120.

    abstract::Neutralizing antibodies (Nabs) are thought to play an important role in prevention and control of HIV-1 infection and should be targeted by an AIDS vaccine. It is critical to understand how HIV-1 induces Nabs by analyzing viral sequences in both tested viruses and sera. Neutralization susceptibility to antibodies in a...

    journal_title:Virology

    pub_type: 杂志文章

    doi:10.1016/j.virol.2010.09.031

    authors: Kirchherr JL,Hamilton J,Lu X,Gnanakaran S,Muldoon M,Daniels M,Kasongo W,Chalwe V,Mulenga C,Mwananyanda L,Musonda RM,Yuan X,Montefiori DC,Korber BT,Haynes BF,Gao F

    更新日期:2011-01-20 00:00:00

  • Proteolytic processing of Marburg virus glycoprotein.

    abstract::Processing of the transmembrane glycoprotein (GP) of Marburg virus involved the conversion of an endo H-sensitive, ER-specific form into an endo H-resistant, Golgi-specific precursor that was cleaved into GP(1) and GP(2). Cleavage was mediated by furin or another subtilisin-like endoprotease with similar substrate spe...

    journal_title:Virology

    pub_type: 杂志文章

    doi:10.1006/viro.1999.0110

    authors: Volchkov VE,Volchkova VA,Ströher U,Becker S,Dolnik O,Cieplik M,Garten W,Klenk HD,Feldmann H

    更新日期:2000-03-01 00:00:00

  • Effects of DEAE-dextran on infection and hemolysis by VSV. Evidence that nonspecific electrostatic interactions mediate effective binding of VSV to cells.

    abstract::The polycation DEAE-dextran increased the binding of VSV to BHK cells about fourfold over a wide range of VSV concentrations. The same proportion of bound virions was internalized by the cell in the presence or absence of DEAE-dextran. Viral primary RNA production was increased to the equivalent of a 4- to 4.5-fold in...

    journal_title:Virology

    pub_type: 杂志文章

    doi:10.1016/0042-6822(84)90429-x

    authors: Bailey CA,Miller DK,Lenard J

    更新日期:1984-02-01 00:00:00

  • Identification of human and mouse homologs of the MC51L-53L-54L family of secreted glycoproteins encoded by the Molluscum contagiosum poxvirus.

    abstract::Molluscum contagiosum virus (MCV) is a human poxvirus that produces small, benign skin tumors primarily in young children and encodes proteins that modulate the host immune response. The MC51L, MC53L, and MC54L open reading frames of MCV have significant amino acid sequence similarities and related proteins are encode...

    journal_title:Virology

    pub_type: 杂志文章

    doi:10.1006/viro.1999.9676

    authors: Xiang Y,Moss B

    更新日期:1999-05-10 00:00:00

  • A cis-replication element functions in both orientations to enhance replication of Turnip crinkle virus.

    abstract::Turnip crinkle virus (TCV) (family Tombusviridae, genus Carmovirus) is a positive-sense RNA virus containing a 4054-base genome. Previous results indicated that insertion of Hairpin 4 (H4) into a TCV-associated satellite RNA enhanced replication 6-fold in vivo (Nagy, P., Pogany, J., Simon, A. E., 1999. EMBO J. 18:5653...

    journal_title:Virology

    pub_type: 杂志文章

    doi:10.1016/j.virol.2006.03.051

    authors: Sun X,Simon AE

    更新日期:2006-08-15 00:00:00

  • Complementary DNA cloning and expression of the papaya ringspot potyvirus sequences encoding capsid protein and a nuclear inclusion-like protein in Escherichia coli.

    abstract::Three cDNA clones that express viral gene products in Escherichia coli JM83 were derived from a watermelon mosaic virus-1 strain of papaya ringspot virus (PRSV-W). DNAs complementary to portions of the viral RNA were inserted into the pUC8 and pUC9 plasmids, and the expressed polypeptides were fusion products with the...

    journal_title:Virology

    pub_type: 杂志文章

    doi:10.1016/0042-6822(85)90383-6

    authors: Nagel J,Hiebert E

    更新日期:1985-06-01 00:00:00

  • Construction and characterization of an infectious clone generated from Chikungunya virus SL11131 strain.

    abstract::Chikungunya virus (CHIKV) is a mosquito-borne RNA virus that causes Chikungunya fever in humans. In this study, we generated two DNA-based CHIKV infectious clones derived from an Indian Ocean Lineage SL11131 strain and a prototype Ross strain. When the replication capabilities of the infectious CHIKV in various cell l...

    journal_title:Virology

    pub_type: 杂志文章

    doi:10.1016/j.virol.2020.09.006

    authors: Suzuki Y,Tanaka A,Maeda Y,Emi A,Fujioka Y,Sakaguchi S,Vasudevan SG,Kobayashi T,Lim CK,Takasaki T,Wu H,Nakano T

    更新日期:2021-01-02 00:00:00

  • Expression of authentic vaccinia virus-specific and inserted viral and cellular genes under control of an early vaccinia virus promoter is regulated post-transcriptionally in interferon-treated chick embryo fibroblasts.

    abstract::The interferon sensitivity of the expression of an influenza-virus hemagglutinin (HA) gene cloned into the thymidine kinase (TK) gene of vaccinia virus was studied in chick embryo fibroblasts (CEF) and Madin-Darby bovine kidney (MDBK) cells. In CEF, the expression of the HA gene is inhibited by pretreatment of cells w...

    journal_title:Virology

    pub_type: 杂志文章

    doi:10.1016/0042-6822(92)90740-g

    authors: Degen HJ,Blum D,Grün J,Jungwirth C

    更新日期:1992-05-01 00:00:00

  • Identification of proteins encoded by avian reoviruses and evidence for post-translational modification.

    abstract::Twelve avian reovirus strain 176 proteins, 10 structural (lambda 1, lambda 2, lambda 3, mu 1, mu 2/mu 2C, sigma 1, sigma 2, sigma 3, and sigma 4), and 2 nonstructural (mu NS and sigma NS) were identified and characterized by electrophoretic analysis of purified virions and infected cell lysates. Three of the identifie...

    journal_title:Virology

    pub_type: 杂志文章

    doi:10.1006/viro.1993.1147

    authors: Ni Y,Ramig RF,Kemp MC

    更新日期:1993-03-01 00:00:00

  • A high throughput Cre-lox activated viral membrane fusion assay identifies pharmacological inhibitors of HIV entry.

    abstract::Enveloped virus entry occurs when viral and cellular membranes fuse releasing particle contents into the target cell. Human immunodeficiency virus (HIV) entry occurs by cell-free virus or virus transferred between infected and uninfected cells through structures called virological synapses. We developed a high-through...

    journal_title:Virology

    pub_type: 杂志文章

    doi:10.1016/j.virol.2015.10.013

    authors: Esposito AM,Cheung P,Swartz TH,Li H,Tsibane T,Durham ND,Basler CF,Felsenfeld DP,Chen BK

    更新日期:2016-03-01 00:00:00

  • Molecular pathways executing the "trophic sentinel" response in HPV-16 E7-expressing normal human diploid fibroblasts upon growth factor deprivation.

    abstract::In response to oncogenic insults, normal human cells execute a defense response that culminates in cellular suicide, apoptosis. Normal human diploid fibroblasts expressing the human papillomavirus type 16 (HPV-16) E7 oncoprotein are predisposed to apoptosis when they are deprived of growth factors. Even though a domin...

    journal_title:Virology

    pub_type: 杂志文章

    doi:10.1016/j.virol.2003.11.008

    authors: Eichten A,Rud DS,Grace M,Piboonniyom SO,Zacny V,Münger K

    更新日期:2004-02-05 00:00:00

  • Host cell p53 associates with the feline calicivirus major viral capsid protein VP1, the protease-polymerase NS6/7, and the double-stranded RNA playing a role in virus replication.

    abstract::p53 is implicated in several cellular pathways such as induction of cell-cycle arrest, differentiation, senescence, and apoptosis. p53 is activated by a broad range of stress signals, including viral infections. While some viruses activate p53, others induce its inactivation, and occasionally p53 is differentially mod...

    journal_title:Virology

    pub_type: 杂志文章

    doi:10.1016/j.virol.2020.08.008

    authors: Trujillo-Uscanga A,Gutiérrez-Escolano AL

    更新日期:2020-11-01 00:00:00

  • Temperature-induced structural stabilization of the encapsidated RNA of southern bean mosaic virus and its biologic significance.

    abstract::Virions of southern bean mosaic virus (SBMV) show two distinct sensitivity patterns upon heating. Infectivity loss and capsid denaturation occur concurrently if virions are exposed at 50-55 degrees in 0.1 M sodium phosphate buffer, pH 7.5, or 0.1 M glycine-phosphate buffer, pH 9.0. Contrastingly, virions are inactivat...

    journal_title:Virology

    pub_type: 杂志文章

    doi:10.1016/0042-6822(81)90437-2

    authors: Veerisetty V,El-Hassan SA,Sehgal OP

    更新日期:1981-01-30 00:00:00

  • The P genes of human parainfluenza virus type 1 clinical isolates are polycistronic and microheterogeneous.

    abstract::The nucleotide sequence of the P gene of human parainfluenza virus type 1 (hPIV1) strain C35 was determined directly from genomic viral RNA and by molecular cloning. The gene contained 1893 nucleotides. Four open reading frames (ORF) capable of encoding a P protein (568 amino acids; M(r) = 64,784), a C' protein (219 a...

    journal_title:Virology

    pub_type: 杂志文章

    doi:10.1016/0042-6822(92)90712-x

    authors: Power UF,Ryan KW,Portner A

    更新日期:1992-07-01 00:00:00

  • Cloning of bovine rotavirus (RF strain): nucleotide sequence of the gene coding for the major capsid protein.

    abstract::The genes of the RF strain of bovine rotavirus have been cloned into pBR 322 following the synthesis and hybridization of cDNA transcribed from both strands of in vitro polyadenylated genomic RNA. Cloned rotavirus DNAs were assigned to most of the 11 genomic RNA segments by Northern blot hybridization. The complete se...

    journal_title:Virology

    pub_type: 杂志文章

    doi:10.1016/0042-6822(84)90159-4

    authors: Cohen J,Lefevre F,Estes MK,Bremont M

    更新日期:1984-10-15 00:00:00

  • The role of proximal and distal sequence variations in the presentation of an immunodominant CTL epitope encoded by the ecotropic AK7 MuLV.

    abstract::An emv-14-derived, replication-competent ecotropic murine leukemia virus [MuLV], designated AK7, was previously cloned from the AKXL-5 recombinant inbred mouse strain and partially characterized. While genetically encoding for an envelope-derived immunodominant CTL epitope [KSPWFTTL] located in the transmembrane regio...

    journal_title:Virology

    pub_type: 杂志文章

    doi:10.1006/viro.1997.8747

    authors: Kim V,Green WR

    更新日期:1997-09-29 00:00:00

  • Enhancement of dengue virus translation: role of the 3' untranslated region and the terminal 3' stem-loop domain.

    abstract::An essential step for a productive infection by the dengue flavivirus (DEN) is translation of the m(7)G-capped, nonpolyadenylated positive-sense RNA genome. We have recently identified sequences within the DEN 3' untranslated region (UTR) that modulate viral translation. Here, we show that the DEN type 2 (DEN2) 3'UTR ...

    journal_title:Virology

    pub_type: 杂志文章

    doi:10.1016/j.virol.2004.08.004

    authors: Holden KL,Harris E

    更新日期:2004-11-10 00:00:00

  • Mutational analysis of the translational signal in the human cytomegalovirus gpUL4 (gp48) transcript leader by retroviral infection.

    abstract::A short upstream open reading frame (uORF2) in the human cytomegalovirus (CMV) gpUL4 (gp48) transcript leader is conserved among CMV strains and inhibits translation of a downstream cistron. Remarkably, this inhibitory effect depends on the amino acid coding information of uORF2, at least in transient transfection ass...

    journal_title:Virology

    pub_type: 杂志文章

    doi:10.1006/viro.1994.1630

    authors: Cao J,Geballe AP

    更新日期:1994-11-15 00:00:00

  • RIG-I activation inhibits ebolavirus replication.

    abstract::Hemorrhagic fever viruses are associated with rapidly progressing severe disease with high case fatality, making them of public health and biothreat importance. Effective antivirals are not available for most of the members of this diverse group of viruses. A broad spectrum strategy for antiviral development would be ...

    journal_title:Virology

    pub_type: 杂志文章

    doi:10.1016/j.virol.2009.06.032

    authors: Spiropoulou CF,Ranjan P,Pearce MB,Sealy TK,Albariño CG,Gangappa S,Fujita T,Rollin PE,Nichol ST,Ksiazek TG,Sambhara S

    更新日期:2009-09-15 00:00:00

  • Human APOBEC3G incorporation into murine leukemia virus particles.

    abstract::The human APOBEC3G protein exhibits broad antiretroviral activity against a variety of retroviruses. It is packaged into viral particles and executes its antiviral function in the target cell. The packaging of APOBEC3G into different viral particles requires a mechanism that confers this promiscuity. Here, APOBEC3G in...

    journal_title:Virology

    pub_type: 杂志文章

    doi:10.1016/j.virol.2005.04.006

    authors: Kremer M,Bittner A,Schnierle BS

    更新日期:2005-06-20 00:00:00

  • Biology of the temperate Streptococcus thermophilus bacteriophage TP-J34 and physical characterization of the phage genome.

    abstract::The temperate Streptococcus thermophilus bacteriophage TP-J34 was identified in the lysogenic host strain J34. The majority of phage particles produced upon induction was defective and noninfectious, consisting of DNA-filled heads lacking tails. A physical map (45.6 kb) was established. Analysis of minor restriction b...

    journal_title:Virology

    pub_type: 杂志文章

    doi:10.1016/s0042-6822(03)00516-6

    authors: Neve H,Freudenberg W,Diestel-Feddersen F,Ehlert R,Heller KJ

    更新日期:2003-10-10 00:00:00

  • Phosphorylated proteins in cauliflower mosaic virus.

    abstract::Autoradiography of dodecyl sulfate-impregnated polyacrylamide gels after electrophoresis of the proteins from 32P-labeled cauliflower mosaic virus (CaMV) showed that two of the structural proteins were phosphorylated. These two proteins of 44 and 58 kilodaltons (kd) occur as minor components with some strains of the v...

    journal_title:Virology

    pub_type: 杂志文章

    doi:10.1016/0042-6822(80)90294-9

    authors: Hahn P,Shepherd RJ

    更新日期:1980-11-01 00:00:00

  • A sequence in HpaI-P fragment of herpes simplex virus-1 DNA determines intraperitoneal virulence in mice.

    abstract::The virulence of herpes simplex virus-1 (HSV-1) strains by the intraperitoneal (ip) route of injection in mice depends on the presence of an intact sequence in the HpaI DNA fragment P within coordinates 0.762 to 0.787. Deletion of the HpaI-P region (e.g., strain HFEM) abrogates the ability of the virus to infect mice ...

    journal_title:Virology

    pub_type: 杂志文章

    doi:10.1016/0042-6822(86)90128-5

    authors: Becker Y,Hadar J,Tabor E,Ben-Hur T,Raibstein I,Rösen A,Darai G

    更新日期:1986-03-01 00:00:00

  • Interferon-inducible gene expression in chimpanzee liver infected with hepatitis C virus.

    abstract::The molecular host response to hepatitis C virus (HCV) infection was examined by isolation of HCV-induced genes from a cDNA library constructed from chimpanzee liver during the acute phase of hepatitis C. Two cDNA clones, 130-7 and 130-51, were obtained by differential hybridization with cDNA probes prepared from poly...

    journal_title:Virology

    pub_type: 杂志文章

    doi:10.1016/0042-6822(92)90925-f

    authors: Kato T,Esumi M,Yamashita S,Abe K,Shikata T

    更新日期:1992-10-01 00:00:00

  • The two nonstructural proteins from wheat dwarf virus involved in viral gene expression and replication are retinoblastoma-binding proteins.

    abstract::Tumor-inducing viruses like simian virus 40 or the human adenovirus produce oncoproteins which interfere with the cellular retinoblastoma (Rb) tumor-suppressor protein to create an appropriate molecular environment in the nucleus for viral transcription and replication. Such a strategy has been considered to be restri...

    journal_title:Virology

    pub_type: 杂志文章

    doi:10.1006/viro.1996.0256

    authors: Collin S,Fernández-Lobato M,Gooding PS,Mullineaux PM,Fenoll C

    更新日期:1996-05-01 00:00:00

  • The satellite RNA of barley yellow dwarf virus-RPV is supported by beet western yellows virus in dicotyledonous protoplasts and plants.

    abstract::The subgroup II luteovirus barley yellow dwarf virus-RPV (BYDV-RPV) acts as a helper virus for a satellite RNA (satRPV RNA). The subgroup II luteovirus beet western yellows virus (BWYV) and the ST9-associated RNA (ST9a RNA), a BWYV-associated RNA that encodes a polymerase similar to those of subgroup I luteoviruses, w...

    journal_title:Virology

    pub_type: 杂志文章

    doi:10.1006/viro.1997.8532

    authors: Rasochová L,Passmore BK,Falk BW,Miller WA

    更新日期:1997-05-12 00:00:00

  • Some biological and physicochemical properties of blue-green algal virus LPP-1.

    abstract::Adsorption and one-step growth experiments performed with blue-green algal virus (BGAV) LPP-1 under normal conditions revealed a slow adsorption rate, in comparison with bacteriophage systems, followed by a 7-hour latent period. The burst size was approximately 100 virus particles per cell. The molecular weight of the...

    journal_title:Virology

    pub_type: 杂志文章

    doi:10.1016/0042-6822(67)90036-0

    authors: Goldstein DA,Bendet IJ,Lauffer MA,Smith KM

    更新日期:1967-08-01 00:00:00

  • Functional domains in the feline immunodeficiency virus nucleocapsid protein.

    abstract::Retroviral nucleocapsid (NC) proteins are small Gag-derived products containing one or two zinc finger motifs that mediate genomic RNA packaging into virions. In this study, we addressed the role of the feline immunodeficiency virus (FIV) NC protein in the late stages of virus replication by analyzing the assembly phe...

    journal_title:Virology

    pub_type: 杂志文章

    doi:10.1016/j.virol.2004.06.019

    authors: Manrique ML,Rauddi ML,González SA,Affranchino JL

    更新日期:2004-09-15 00:00:00

  • Hepatitis B viral DNA-RNA hybrid molecules in particles from infected liver are converted to viral DNA molecules during an endogenous DNA polymerase reaction.

    abstract::Particles purified from the liver of hepatitis B virus-infected patients were previously shown by us to incorporate 32P-deoxynucleotides into viral DNA and DNA-RNA hybrid molecules when incubated in a DNA polymerase reaction mixture. In this investigation, similar particles from duck and ground squirrel livers infecte...

    journal_title:Virology

    pub_type: 杂志文章

    doi:10.1016/0042-6822(84)90330-1

    authors: Miller RH,Marion PL,Robinson WS

    更新日期:1984-11-01 00:00:00