Mutational analysis of the cleavage sequence of the human immunodeficiency virus type 1 envelope glycoprotein precursor gp160.

Abstract:

:The envelope glycoproteins of the human immunodeficiency virus (HIV) type 1 are synthesized as a precursor molecule, gp160, which is cleaved to generate the two mature envelope glycoproteins, gp120 and gp41. The cleavage reaction, which is mediated by a host protease, occurs at a sequence highly conserved in retroviral envelope glycoprotein precursors. We have investigated the sequence requirements for this cleavage reaction by introducing four single-amino-acid changes into the glutamic acid-lysine-arginine sequence immediately amino terminal to the site of cleavage. We have also examined the effects of these mutations on the syncytium formation induced by HIV envelope glycoproteins. Our results indicate that a glutamic acid to glycine change at gp120 amino acid 516, a lysine to isoleucine change at amino acid 517, and an arginine to lysine change at amino acid 518 affect neither gp160 cleavage nor syncytium formation. The results obtained with the arginine to lysine change at amino acid 518 differ significantly from the results obtained with the same mutation at the envelope precursor cleavage site of a murine leukemia virus (E. O. Freed, and R. Risser, J. Virol. 61:2852-2856, 1987). An arginine to threonine mutation at gp120 amino acid 518, the terminal residue of gp120, abolishes both gp160 cleavage and syncytium formation. These findings demonstrate that despite its highly conserved nature, the basic pair of amino acids at the site of gp160 cleavage is not absolutely required for proper envelope glycoprotein processing. This report also supports the idea that cleavage of gp160 is required for activation of the HIV envelope fusion function.

journal_name

J Virol

journal_title

Journal of virology

authors

Freed EO,Myers DJ,Risser R

doi

10.1128/JVI.63.11.4670-4675.1989

subject

Has Abstract

pub_date

1989-11-01 00:00:00

pages

4670-5

issue

11

eissn

0022-538X

issn

1098-5514

journal_volume

63

pub_type

杂志文章
  • Transcriptional and translational analyses of the UL2 gene of equine herpesvirus 1: a homolog of UL55 of herpes simplex virus type 1 that is maintained in the genome of defective interfering particles.

    abstract::Defective interfering particles (DIPs) of equine herpesvirus 1 (EHV-1; Kentucky A strain) mediate persistent infection. DNA sequences at the L terminus, which contain the UL2 gene (homolog of UL55 of herpes simplex virus type 1 and open reading frame 3 of varicella-zoster virus) of standard EHV-1, have been shown to b...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.67.4.2255-2265.1993

    authors: Harty RN,Holden VR,O'Callaghan DJ

    更新日期:1993-04-01 00:00:00

  • Identification and Functional Analysis of Novel Nonstructural Proteins of Human Bocavirus 1.

    abstract:UNLABELLED:Human bocavirus 1 (HBoV1) is a single-stranded DNA parvovirus that causes lower respiratory tract infections in young children worldwide. In this study, we identified novel splice acceptor and donor sites, namely, A1' and D1', in the large nonstructural protein (NS1)-encoding region of the HBoV1 precursor mR...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.01374-15

    authors: Shen W,Deng X,Zou W,Cheng F,Engelhardt JF,Yan Z,Qiu J

    更新日期:2015-10-01 00:00:00

  • Identification of an intercistronic internal ribosome entry site in a Marek's disease virus immediate-early gene.

    abstract::In this study, we have identified an internal ribosome entry site (IRES) from the highly infectious herpesvirus Marek's disease virus (MDV). The IRES was mapped to the intercistronic region (ICR) of a bicistronic mRNA that we cloned from the MDV-transformed CD4(+) T-cell line MSB-1. The transcript is a member of a fam...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.02602-08

    authors: Tahiri-Alaoui A,Smith LP,Baigent S,Kgosana L,Petherbridge LJ,Lambeth LS,James W,Nair V

    更新日期:2009-06-01 00:00:00

  • Basolateral entry and release of New and Old World arenaviruses from human airway epithelia.

    abstract::Transmission of arenaviruses from rodent hosts to humans is generally thought to occur through inhalation or ingestion of dust or droplets containing viral particles. Here we demonstrate that two identified arenavirus receptors, alpha-dystroglycan (alpha-DG) and transferrin receptor 1 (TfR1), are expressed in polarize...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.00100-08

    authors: Dylla DE,Michele DE,Campbell KP,McCray PB Jr

    更新日期:2008-06-01 00:00:00

  • Retroviruses pseudotyped with the severe acute respiratory syndrome coronavirus spike protein efficiently infect cells expressing angiotensin-converting enzyme 2.

    abstract::Infection of receptor-bearing cells by coronaviruses is mediated by their spike (S) proteins. The coronavirus (SARS-CoV) that causes severe acute respiratory syndrome (SARS) infects cells expressing the receptor angiotensin-converting enzyme 2 (ACE2). Here we show that codon optimization of the SARS-CoV S-protein gene...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.78.19.10628-10635.2004

    authors: Moore MJ,Dorfman T,Li W,Wong SK,Li Y,Kuhn JH,Coderre J,Vasilieva N,Han Z,Greenough TC,Farzan M,Choe H

    更新日期:2004-10-01 00:00:00

  • Differential effects of nerve growth factor and dexamethasone on herpes simplex virus type 1 oriL- and oriS-dependent DNA replication in PC12 cells.

    abstract::The herpes simplex virus type 1 (HSV-1) genome contains three origins of DNA replication, one copy of oriL and two copies of oriS. Although oriL and oriS are structurally different, they have extensive nucleotide sequence similarity and can substitute for each other to initiate viral DNA replication. A fundamental que...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.71.5.3580-3587.1997

    authors: Hardwicke MA,Schaffer PA

    更新日期:1997-05-01 00:00:00

  • Human T-cell leukemia virus type 1 Tax protein binds to assembled nuclear proteasomes and enhances their proteolytic activity.

    abstract::The human T-cell leukemia virus type 1 (HTLV-1) Tax protein activates the HTLV-1 long terminal repeat and key regulatory proteins involved in inflammation, activation, and proliferation and may induce cell transformation. Tax is also the immunodominant target antigen for cytotoxic T cells in HTLV-1 infection. We found...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.75.22.11106-11115.2001

    authors: Hemelaar J,Bex F,Booth B,Cerundolo V,McMichael A,Daenke S

    更新日期:2001-11-01 00:00:00

  • Avian bornavirus associated with fatal disease in psittacine birds.

    abstract::Thanks to new technologies which enable rapid and unbiased screening for viral nucleic acids in clinical specimens, an impressive number of previously unknown viruses have recently been discovered. Two research groups independently identified a novel negative-strand RNA virus, now designated avian bornavirus (ABV), in...

    journal_title:Journal of virology

    pub_type: 杂志文章,评审

    doi:10.1128/JVI.02567-09

    authors: Staeheli P,Rinder M,Kaspers B

    更新日期:2010-07-01 00:00:00

  • Complete genome sequence of a double-stranded RNA virus from avocado.

    abstract::A number of avocado (Persea americana) cultivars are known to contain high-molecular-weight double-stranded RNA (dsRNA) molecules for which a viral nature has been suggested, although sequence data are not available. Here we report the cloning and complete sequencing of a 13.5-kbp dsRNA virus isolated from avocado and...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.06572-11

    authors: Villanueva F,Sabanadzovic S,Valverde RA,Navas-Castillo J

    更新日期:2012-01-01 00:00:00

  • Binding of human immunodeficiency virus type 1 Gag to membrane: role of the matrix amino terminus.

    abstract::Binding of the human immunodeficiency virus type 1 (HIV-1) Gag protein precursor, Pr55(Gag), to membrane is an indispensable step in virus assembly. Previously, we reported that a matrix (MA) residue 6 substitution (6VR) imposed a virus assembly defect similar to that observed with myristylation-defective mutants, sug...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.73.5.4136-4144.1999

    authors: Ono A,Freed EO

    更新日期:1999-05-01 00:00:00

  • Molecular characterization of proteolytic processing of the Gag proteins of human spumavirus.

    abstract::Spumaviruses, or foamy viruses, express Gag proteins that are incompletely processed by the viral protease in cell cultures. To delineate the proteolytic cleavage sites between potential Gag subdomains, recombinant human spumaretrovirus (HSRV) Gag proteins of different lengths were expressed, purified by affinity chro...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.73.9.7907-7911.1999

    authors: Pfrepper KI,Löchelt M,Rackwitz HR,Schnölzer M,Heid H,Flügel RM

    更新日期:1999-09-01 00:00:00

  • NS35 and not vp7 is the soluble rotavirus protein which binds to target cells.

    abstract::Recent studies using radiolabeled rotavirus lysates have demonstrated a 35-kilodalton viral protein that binds specifically to the surface of MA104 cells (N. Fukuhara, O. Yoshie, S. Kitakoa, and T. Konno, J. Virol. 62:2209-2218, 1988; M. Sabara, J. Gilchrist, G.R. Hudson, and L.A. Babiuk, J. Virol. 53:58-66, 1985). Th...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.64.1.322-330.1990

    authors: Bass DM,Mackow ER,Greenberg HB

    更新日期:1990-01-01 00:00:00

  • Mechanism of reduced T-cell effector functions and class-switched antibody responses to herpes simplex virus type 2 in the absence of B7 costimulation.

    abstract::T-cell costimulation molecules B7-1 and B7-2 play an important role in activation of T cells to cytolytic effector function and production of cytokines. Interaction with B7 also causes T cells to upregulate surface molecules, such as CD40L, that effectively stimulate antibody responses in conjunction with cytokines. W...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/jvi.77.4.2426-2435.2003

    authors: Thebeau LG,Morrison LA

    更新日期:2003-02-01 00:00:00

  • Proteolysis of noncapsid protein 2 of type 3 poliovirus at the restrictive temperature: breakdown of noncapsid protein 2 correlates with loss of RNA synthesis.

    abstract::Inhibition of RNA synthesis of the LH strain of type 3 poliovirus at the restrictive temperature occurs concurrently with the breakdown of noncapsid virus-specific peptide 2. This finding, along with other reported data (B.D. Korant, In Proteases and Biological Control, p. 621-644, 1975), suggests that noncapsid virus...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.27.2.443-448.1978

    authors: Bowles SA,Tershak DR

    更新日期:1978-08-01 00:00:00

  • Activation of the c-myb locus is insufficient for the rapid induction of disseminated avian B-cell lymphoma.

    abstract::We have previously reported that infection of 9- to 13-day-old chicken embryos with RAV-1 results in rapid development of a novel B-cell lymphoma in which proviral insertion has activated expression of the c-myb gene (E. Pizer and E. H. Humphries, J. Virol. 63:1630-1640, 1989). The biological properties of these B-cel...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.66.1.512-523.1992

    authors: Pizer ES,Baba TW,Humphries EH

    更新日期:1992-01-01 00:00:00

  • Identification of unusual E6 and E7 proteins within avian papillomaviruses: cellular localization, biophysical characterization, and phylogenetic analysis.

    abstract::Papillomaviruses (PVs) are a large family of small DNA viruses infecting mammals, reptiles, and birds. PV infection induces cell proliferation that may lead to the formation of orogenital or skin tumors. PV-induced cell proliferation has been related mainly to the expression of two small oncoproteins, E6 and E7. In ma...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.01777-08

    authors: Van Doorslaer K,Sidi AO,Zanier K,Rybin V,Deryckère F,Rector A,Burk RD,Lienau EK,van Ranst M,Travé G

    更新日期:2009-09-01 00:00:00

  • Glycosyl-Phosphatidylinositol-Anchored Anti-HIV Env Single-Chain Variable Fragments Interfere with HIV-1 Env Processing and Viral Infectivity.

    abstract::In previous studies, we demonstrated that single-chain variable fragments (scFvs) from anti-human immunodeficiency virus (HIV) Env monoclonal antibodies act as entry inhibitors when tethered to the surface of target cells by a glycosyl-phosphatidylinositol (GPI) anchor. Interestingly, even if a virus escapes inhibitio...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.02080-17

    authors: Misra A,Gleeson E,Wang W,Ye C,Zhou P,Kimata JT

    更新日期:2018-03-14 00:00:00

  • Identification of functional domains in kaposica, the complement control protein homolog of Kaposi's sarcoma-associated herpesvirus (human herpesvirus 8).

    abstract::Recently it has been shown that kaposica, an immune evasion protein of Kaposi's sarcoma-associated herpesvirus, inactivates complement by acting on C3-convertases by accelerating their decay as well as by acting as a cofactor in factor I-mediated inactivation of their subunits C3b and C4b. Here, we have mapped the fun...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.79.9.5850-5856.2005

    authors: Mullick J,Singh AK,Panse Y,Yadav V,Bernet J,Sahu A

    更新日期:2005-05-01 00:00:00

  • Robust neutralizing antibodies elicited by HIV-1 JRFL envelope glycoprotein trimers in nonhuman primates.

    abstract::Host cell-mediated proteolytic cleavage of the human immunodeficiency virus type 1 (HIV-1) gp160 precursor glycoprotein into gp120 and gp41 subunits is required to generate fusion-competent envelope glycoprotein (Env) spikes. The gp120-directed broadly neutralizing monoclonal antibodies (bNabs) isolated from HIV-infec...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.01247-13

    authors: Chakrabarti BK,Feng Y,Sharma SK,McKee K,Karlsson Hedestam GB,Labranche CC,Montefiori DC,Mascola JR,Wyatt RT

    更新日期:2013-12-01 00:00:00

  • Disruption of microtubule organization and centrosome function by expression of tobacco mosaic virus movement protein.

    abstract::The movement protein (MP) of Tobacco mosaic virus mediates the cell-to-cell transport of viral RNA through plasmodesmata, cytoplasmic cell wall channels for direct cell-to-cell communication between adjacent cells. Previous in vivo studies demonstrated that the RNA transport function of the protein correlates with its...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.00254-06

    authors: Ferralli J,Ashby J,Fasler M,Boyko V,Heinlein M

    更新日期:2006-06-01 00:00:00

  • The 10,400- and 14,500-dalton proteins encoded by region E3 of adenovirus form a complex and function together to down-regulate the epidermal growth factor receptor.

    abstract::In adenovirus-infected cells, the epidermal growth factor receptor (EGF-R) is internalized from the cell surface via endosomes and is degraded, and the E3 10,400-dalton protein (10.4K protein) is required for this effect (C. R. Carlin, A. E. Tollefson, H. A. Brady, B. L. Hoffman, and W. S. M. Wold, Cell 57:135-144, 19...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.65.6.3095-3105.1991

    authors: Tollefson AE,Stewart AR,Yei SP,Saha SK,Wold WS

    更新日期:1991-06-01 00:00:00

  • Modulation by gamma interferon of antiviral cell-mediated immune responses in vivo.

    abstract::Mice were infected with lymphocytic choriomeningitis virus and injected once 24 h later with a monoclonal antibody directed against gamma interferon. In comparison with controls, the increase of numbers of CD8+ T cells and the generation of virus-specific cytotoxic T lymphocytes in spleens and virus clearance from org...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.70.3.1521-1526.1996

    authors: Utermöhlen O,Dangel A,Tárnok A,Lehmann-Grube F

    更新日期:1996-03-01 00:00:00

  • Herpes simplex virus capsids assembled in insect cells infected with recombinant baculoviruses: structural authenticity and localization of VP26.

    abstract::Recently, recombinant baculoviruses have been used to show that expression of six herpes simplex virus type 1 genes results in the formation of capsid-like particles. We have applied cryoelectron microscopy and three-dimensional image reconstruction to establish their structural authenticity to a resolution of approxi...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.69.11.7362-7366.1995

    authors: Trus BL,Homa FL,Booy FP,Newcomb WW,Thomsen DR,Cheng N,Brown JC,Steven AC

    更新日期:1995-11-01 00:00:00

  • Overexpression of Interleukin-7 Extends the Humoral Immune Response Induced by Rabies Vaccination.

    abstract::Rabies continues to present a public health threat in most countries of the world. The most efficient way to prevent and control rabies is to implement vaccination programs for domestic animals. However, traditional inactivated vaccines used in animals are costly and have relatively low efficiency, which impedes their...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.02324-16

    authors: Li Y,Zhou M,Luo Z,Zhang Y,Cui M,Chen H,Fu ZF,Zhao L

    更新日期:2017-03-13 00:00:00

  • SUN2 Overexpression Deforms Nuclear Shape and Inhibits HIV.

    abstract:UNLABELLED:In a previous screen of putative interferon-stimulated genes, SUN2 was shown to inhibit HIV-1 infection in an uncharacterized manner. SUN2 is an inner nuclear membrane protein belonging to the linker of nucleoskeleton and cytoskeleton complex. We have analyzed here the role of SUN2 in HIV infection. We repor...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.03202-15

    authors: Donahue DA,Amraoui S,di Nunzio F,Kieffer C,Porrot F,Opp S,Diaz-Griffero F,Casartelli N,Schwartz O

    更新日期:2016-03-28 00:00:00

  • The Sfpi-1 proviral integration site of Friend erythroleukemia encodes the ets-related transcription factor Pu.1.

    abstract::Previous studies identified a common site (Sfpi-1) for proviral integration in immortalized Friend erythroleukemias. cDNAs corresponding to a 1.5-kb Sfpi-1 mRNA were isolated and sequenced. These were larger than an independently isolated Sfpi-1 cDNA described by researchers from another laboratory, and they contained...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.65.1.464-467.1991

    authors: Paul R,Schuetze S,Kozak SL,Kozak CA,Kabat D

    更新日期:1991-01-01 00:00:00

  • The bovine papillomavirus E5 protein requires a juxtamembrane negative charge for activation of the platelet-derived growth factor beta receptor and transformation of C127 cells.

    abstract::The bovine papillomavirus E5 gene encodes a 44-amino-acid, homodimeric transmembrane protein that is the smallest known transforming protein. The E5 protein transforms cultured fibroblasts by forming a stable complex with the endogenous platelet-derived growth factor (PDGF) beta receptor through transmembrane and juxt...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.73.4.3264-3272.1999

    authors: Klein O,Kegler-Ebo D,Su J,Smith S,DiMaio D

    更新日期:1999-04-01 00:00:00

  • Genetic location of a mutant of bacteriophage T4 deficient in the ability to induce endonuclease II.

    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

    authors: Ray P,Sinha NK,Warner HR,Snustad DP

    更新日期:1972-01-01 00:00:00

  • Translation of murine leukemia virus RNA in cell-free systems from animal cells.

    abstract::The virion RNA of Moloney murine leukemia virus (MuLV) has been translated in eukaryotic cell-free systems derived from mouse L- and human HeLa cells. In both systems at least three polypeptides, approximately 60,000, 70,000, and 180,000 in apparent molecular weight, were formed in response to the added 35S MuLV RNA. ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.18.2.627-635.1976

    authors: Kerr IM,Olshevsky U,Lodish HF,Baltimore D

    更新日期:1976-05-01 00:00:00

  • Activation of the human T-cell leukemia virus type I enhancer is mediated by binding sites for Elf-1 and the pets factor.

    abstract::Infection with human T-cell leukemia virus type I (HTLV-I) is associated with adult T-cell lymphoma/leukemia. This disease occurs in only a small minority of people infected with HTLV-I and manifests itself many years after infection. Therefore, it appears that a fine balance exists between HTLV-I and the host T-cell ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.67.9.5522-5528.1993

    authors: Clark NM,Smith MJ,Hilfinger JM,Markovitz DM

    更新日期:1993-09-01 00:00:00