Interferon-induced human protein MxA is a GTPase which binds transiently to cellular proteins.

Abstract:

:MxA is an abundant and ubiquitous cytoplasmic protein induced by alpha/beta interferon in human cells. Upon full induction, it can constitute 0.5 to 1% of cytosolic proteins. MxA can bind elements of the cytoskeleton, such as actin and tubulins, and several larger cellular proteins. However, these protein-protein interactions seem to be transitory. The human MxA protein contains a tripartite GTP-binding domain consisting of GxxxxGKS, DxxG, and TKxD, where x is any amino acid. It is shown here that the native MxA protein has GTPase activity (GTP----GDP) when purified by immunoprecipitation with affinity-purified polyclonal antibodies directed against the C-terminal domain of MxA. The GTPase activity is greatly diminished by polyclonal antibodies directed against the N-terminal domain of MxA (the domain which contains the GTP-binding consensus elements). Amino acid substitution within the GTP-binding domain abolished the GTPase activity of the mutated MxA protein expressed in transfected CHO cells. The reaction is specific for GTP, and the approximate Km is 0.1 mM. The reaction has an absolute requirement for Mg2+. The turnover number is approximately 70 molecules of GTP hydrolyzed per min per MxA molecule. It is suggested that the human MxA protein has certain characteristics of the stress proteins.

journal_name

J Virol

journal_title

Journal of virology

authors

Horisberger MA

doi

10.1128/JVI.66.8.4705-4709.1992

subject

Has Abstract

pub_date

1992-08-01 00:00:00

pages

4705-9

issue

8

eissn

0022-538X

issn

1098-5514

journal_volume

66

pub_type

杂志文章
  • Location of DNA-binding proteins and disulfide-linked proteins in vaccinia virus structural elements.

    abstract::Treatment with sodium dodecyl sulfate (SDS) converted the vaccinia virus strain IHD-J into particles of two types: (i) ghosts which possessed a thin-membrane vesicle derived from basement part of the virus membrane with attached lateral bodies and a membranous structure derived from the core wall and (ii) aggregates o...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.50.3.929-938.1984

    authors: Ichihashi Y,Oie M,Tsuruhara T

    更新日期:1984-06-01 00:00:00

  • The PSAP motif within the ORF3 protein of an avian strain of the hepatitis E virus is not critical for viral infectivity in vivo but plays a role in virus release.

    abstract::The ORF3 protein of hepatitis E virus (HEV) is a multifunctional protein important for virus replication. The ORF3 proteins from human, swine, and avian strains of HEV contain a conserved PXXP amino acid motif, resembling either Src homology 3 (SH3) cell signaling interaction motifs or "late domains" involved in host ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.06711-11

    authors: Kenney SP,Pudupakam RS,Huang YW,Pierson FW,LeRoith T,Meng XJ

    更新日期:2012-05-01 00:00:00

  • Transfection in pneumococcus: single-strand intermediates in the formation of infective centers.

    abstract::Transfection has been found and characterized in pneumococcus. For replicating omega3 phage DNA extracted from infected cells, transfection was relatively efficient and rose linearly with DNA concentration and quadratically with time, according to T(T - 3.5) min(2). For mature DNA extracted from phage particles, trans...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.25.1.60-72.1978

    authors: Porter RD,Guild WR

    更新日期:1978-01-01 00:00:00

  • Spontaneous recovery in acute human hepatitis C virus infection: functional T-cell thresholds and relative importance of CD4 help.

    abstract::The mechanisms mediating protective immunity to hepatitis C virus (HCV) infection are incompletely understood because early infection in humans is rarely identified, particularly in those individuals who subsequently demonstrate spontaneous virus eradication. We have established a large national network of patients wi...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.01581-07

    authors: Smyk-Pearson S,Tester IA,Klarquist J,Palmer BE,Pawlotsky JM,Golden-Mason L,Rosen HR

    更新日期:2008-02-01 00:00:00

  • Strain variation in an emerging iridovirus of warm-water fishes.

    abstract::Although iridoviruses vary widely within and among genera with respect to their host range and virulence, variation within iridovirus species has been less extensively characterized. This study explores the nature and extent of intraspecific variation within an emerging iridovirus of North American warm-water fishes, ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/jvi.77.16.8812-8818.2003

    authors: Goldberg TL,Coleman DA,Grant EC,Inendino KR,Philipp DP

    更新日期:2003-08-01 00:00:00

  • Rous sarcoma virus DR posttranscriptional elements use a novel RNA export pathway.

    abstract::Rous sarcoma virus (RSV), a simple retrovirus, needs to export unspliced viral RNA from the nucleus to the cytoplasm, circumventing the host cell restriction on cytoplasmic expression of intron-containing RNA. The cytoplasmic accumulation of full-length viral RNA is promoted by two cis-acting direct repeat (DR) elemen...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/jvi.74.20.9507-9514.2000

    authors: Paca RE,Ogert RA,Hibbert CS,Izaurralde E,Beemon KL

    更新日期:2000-10-01 00:00:00

  • Picornavirus-specific CD4+ T lymphocytes possessing cytolytic activity confer protection in the absence of prophylactic antibodies.

    abstract::Picornaviruses are a family of positive-strand RNA viruses that are responsible for a variety of devastating human and animal diseases. An attenuated strain of mengovirus (vMC24) is serologically indistinguishable from the lethal murine wild-type mengovirus and encephalomyocarditis virus (EMCV). Immunogen-specific sti...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.69.8.4914-4923.1995

    authors: Neal ZC,Splitter GA

    更新日期:1995-08-01 00:00:00

  • Possible Action of Transition Divalent Metal Ions at the Inter-Pentameric Interface of Inactivated Foot-and-Mouth Disease Virus Provide A Simple but Effective Approach to Enhance Stability.

    abstract::The structural instability of inactivated foot-and-mouth disease virus (FMDV) hinders the development of vaccine industry. Here we found that some transition metal ions like Cu2+ and Ni2+ could specifically bind to FMDV capsids at capacities about 7089 and 3448 metal ions per capsid, respectively. These values are abo...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.02431-20

    authors: Lin X,Yang Y,Song Y,Li S,Zhang X,Su Z,Zhang S

    更新日期:2021-01-13 00:00:00

  • A single amino acid substitution in the transmembrane envelope glycoprotein of feline immunodeficiency virus alters cellular tropism.

    abstract::The cellular tropism of the feline immunodeficiency virus (FIV) is affected by changes in variable region 3 (V3) of the surface (SU) envelope glycoprotein (Verschoor, E. J., et al., J. Virol. 69:4752-4757, 1995). By using high-dose DNA transfection, an FIV molecular clone with a non-CRFK-tropic V3 acquired the ability...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.71.9.7132-7135.1997

    authors: Vahlenkamp TW,Verschoor EJ,Schuurman NN,van Vliet AL,Horzinek MC,Egberink HF,de Ronde A

    更新日期:1997-09-01 00:00:00

  • Hili Inhibits HIV Replication in Activated T Cells.

    abstract::P-element-induced wimpy-like (Piwil) proteins restrict the replication of mobile genetic elements in the germ line. They are also expressed in many transformed cell lines. In this study, we discovered that the human Piwil 2 (Hili) protein can also inhibit HIV replication, especially in activated CD4+ T cells that are ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.00237-17

    authors: Peterlin BM,Liu P,Wang X,Cary D,Shao W,Leoz M,Hong T,Pan T,Fujinaga K

    更新日期:2017-05-12 00:00:00

  • High rate of genetic recombination in murine leukemia virus: implications for influencing proviral ploidy.

    abstract::A significant difference in the recombination rates between human immunodeficiency virus type 1 (HIV-1) and the gammaretroviruses was previously reported, with the former being 10 to 100 times more recombinogenic. It is possible that preferential copackaging of homodimers in the case of gammaretroviruses, like murine ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.00273-06

    authors: Zhuang J,Mukherjee S,Ron Y,Dougherty JP

    更新日期:2006-07-01 00:00:00

  • The C-terminal hydrophobic domain of hepatitis C virus RNA polymerase NS5B can be replaced with a heterologous domain of poliovirus protein 3A.

    abstract::Replication of the plus-stranded RNA genome of hepatitis C virus (HCV) occurs in a membrane-bound replication complex consisting of viral and cellular proteins and viral RNA. NS5B, the RNA polymerase of HCV, is anchored to the membranes via a C-terminal 20-amino-acid-long hydrophobic domain, which is flanked on each s...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.02072-05

    authors: Lee H,Liu Y,Mejia E,Paul AV,Wimmer E

    更新日期:2006-11-01 00:00:00

  • Release of virus-like particles from cells infected with poliovirus replicons which express human immunodeficiency virus type 1 Gag.

    abstract::The effectiveness of attenuated poliovirus vaccines when given orally to induce both systemic and mucosal immune responses against poliovirus has resulted in an effort to develop poliovirus-based vectors to express foreign proteins. We have previously described the construction of poliovirus genomes (referred to as re...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.70.4.2643-2649.1996

    authors: Porter DC,Melsen LR,Compans RW,Morrow CD

    更新日期:1996-04-01 00:00:00

  • Interactions between the structural domains of the RNA replication proteins of plant-infecting RNA viruses.

    abstract::Brome mosaic virus (BMV), a positive-strand RNA virus, encodes two replication proteins: the 2a protein, which contains polymerase-like sequences, and the 1a protein, with N-terminal putative capping and C-terminal helicase-like sequences. These two proteins are part of a multisubunit complex which is necessary for vi...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.72.9.7160-7169.1998

    authors: O'Reilly EK,Wang Z,French R,Kao CC

    更新日期:1998-09-01 00:00:00

  • Antibody response in mice inoculated with DNA expressing foot-and-mouth disease virus capsid proteins.

    abstract::Candidate foot-and-mouth disease (FMD) DNA vaccines designed to produce viral capsids lacking infectious viral nucleic acid were evaluated. Plasmid DNAs containing a portion of the FMDV genome coding for the capsid precursor protein (P1-2A) and wild-type or mutant viral proteinase 3C (plasmids P12X3C or P12X3C-mut, re...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.72.5.4454-4457.1998

    authors: Chinsangaram J,Beard C,Mason PW,Zellner MK,Ward G,Grubman MJ

    更新日期:1998-05-01 00:00:00

  • Synthetic double-stranded RNA poly(I:C) combined with mucosal vaccine protects against influenza virus infection.

    abstract::The mucosal adjuvant effect of synthetic double-stranded RNA polyriboinosinic polyribocytidylic acid [poly(I:C)] against influenza virus was examined under intranasal coadministration with inactivated hemagglutinin (HA) vaccine in BALB/c mice and was shown to have a protective effect against both nasal-restricted infe...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.79.5.2910-2919.2005

    authors: Ichinohe T,Watanabe I,Ito S,Fujii H,Moriyama M,Tamura S,Takahashi H,Sawa H,Chiba J,Kurata T,Sata T,Hasegawa H

    更新日期:2005-03-01 00:00:00

  • Regulation of expression of cloned bacteriophage T4 late gene 23.

    abstract::The parameters governing the activity of the cloned T4 gene 23, which codes for the major T4 head protein, were analyzed. Suppressor-negative bacteria carrying wild-type T4 gene 23 cloned into plasmid pCR1 or pBR322 were infected with T4 gene 23 amber phage also carrying mutations in the following genes: (i) denA and ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.39.1.46-59.1981

    authors: Jacobs KA,Geiduschek EP

    更新日期:1981-07-01 00:00:00

  • DNA palindromes with a modest arm length of greater, similar 20 base pairs are a significant target for recombinant adeno-associated virus vector integration in the liver, muscles, and heart in mice.

    abstract::Our previous study has shown that recombinant adeno-associated virus (rAAV) vector integrates preferentially in genes, near transcription start sites and CpG islands in mouse liver (H. Nakai, X. Wu, S. Fuess, T. A. Storm, D. Munroe, E. Montini, S. M. Burgess, M. Grompe, and M. A. Kay, J. Virol. 79:3606-3614, 2005). Ho...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.00963-07

    authors: Inagaki K,Lewis SM,Wu X,Ma C,Munroe DJ,Fuess S,Storm TA,Kay MA,Nakai H

    更新日期:2007-10-01 00:00:00

  • Human influenza virus hemagglutinin with high sensitivity to proteolytic activation.

    abstract::To examine the prerequisites for cleavage activation of the hemagglutinin of human influenza viruses, a cDNA clone obtained from strain A/Port Chalmers/1/73 (serotype H3) was subjected to site-directed mutagenesis and expressed in CV-1 cells by using a simian virus 40 vector. The number of basic residues at the cleava...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.65.7.3530-3537.1991

    authors: Ohuchi R,Ohuchi M,Garten W,Klenk HD

    更新日期:1991-07-01 00:00:00

  • Zinc finger domain of murine leukemia virus nucleocapsid protein enhances the rate of viral DNA synthesis in vivo.

    abstract::In vitro studies have indicated that retroviral nucleocapsid (NC) protein facilitates both DNA synthesis by reverse transcriptase (RT) and annealing of the nascent DNA with acceptor template. Increasing the rate of DNA synthesis is expected to reduce the frequency of RT template switching, whereas annealing the nascen...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/jvi.76.15.7473-7484.2002

    authors: Zhang WH,Hwang CK,Hu WS,Gorelick RJ,Pathak VK

    更新日期:2002-08-01 00:00:00

  • Evidence that antibody-mediated neutralization of human immunodeficiency virus type 1 by sera from infected individuals is independent of coreceptor usage.

    abstract::Human immunodeficiency virus type 1 (HIV-1) uses a variety of chemokine receptors as coreceptors for virus entry, and the ability of the virus to be neutralized by antibody may depend on which coreceptors are used. In particular, laboratory-adapted variants of the virus that use CXCR4 as a coreceptor are highly sensit...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.72.3.1886-1893.1998

    authors: Montefiori DC,Collman RG,Fouts TR,Zhou JY,Bilska M,Hoxie JA,Moore JP,Bolognesi DP

    更新日期:1998-03-01 00:00:00

  • The neuroinvasiveness of a murine retrovirus is influenced by a dileucine-containing sequence in the cytoplasmic tail of glycosylated Gag.

    abstract::The tempo and intensity of retroviral neuropathogenesis are dependent on the capacity of the virus to invade the central nervous system. For murine leukemia viruses, an important determinant of neuroinvasiveness is the virus-encoded protein glycosylated Gag, the function of which in the virus life cycle is not known. ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.72.7.5619-5625.1998

    authors: Fujisawa R,McAtee FJ,Wehrly K,Portis JL

    更新日期:1998-07-01 00:00:00

  • Intracellularly expressed single-domain antibody against p15 matrix protein prevents the production of porcine retroviruses.

    abstract::The presence of porcine endogenous retroviruses presents a potential risk of transmission of infectious diseases (xenozoonosis) if tissues and organs from genetically modified pigs are to be used in xenotransplantation. Here, we report that intracellular expression of a llama single-domain antibody against p15, the ma...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/jvi.77.22.12132-12139.2003

    authors: Dekker S,Toussaint W,Panayotou G,de Wit T,Visser P,Grosveld F,Drabek D

    更新日期:2003-11-01 00:00:00

  • Identification of two cross-neutralizing linear epitopes within the L1 major capsid protein of human papillomaviruses.

    abstract::The neutralizing activities of polyclonal antibodies and monoclonal antibodies (MAbs) obtained by immunization of mice with L1 virus-like particles (VLPs) were investigated by using pseudovirion infectivity assays for human papillomavirus type 16 (HPV-16), HPV-31, HPV-33, HPV-45, HPV-58, and HPV-59 to obtain a better ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/jvi.76.13.6480-6486.2002

    authors: Combita AL,Touzé A,Bousarghin L,Christensen ND,Coursaget P

    更新日期:2002-07-01 00:00:00

  • Tetherin Sensitivity of Influenza A Viruses Is Strain Specific: Role of Hemagglutinin and Neuraminidase.

    abstract:UNLABELLED:The expression of the antiviral host cell factor tetherin is induced by interferon and can inhibit the release of enveloped viruses from infected cells. The Vpu protein of HIV-1 antagonizes the antiviral activity of tetherin, and tetherin antagonists with Vpu-like activity have been identified in other virus...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.00615-15

    authors: Gnirß K,Zmora P,Blazejewska P,Winkler M,Lins A,Nehlmeier I,Gärtner S,Moldenhauer AS,Hofmann-Winkler H,Wolff T,Schindler M,Pöhlmann S

    更新日期:2015-09-01 00:00:00

  • A versatile transreplication-based system to identify cellular proteins involved in geminivirus replication.

    abstract::A versatile green fluorescent protein (GFP) expression cassette containing the replication origins of the monopartite begomovirus Tomato yellow leaf curl Sardinia virus (TYLCSV) is described. Transgenic Nicotiana benthamiana plants containing one copy of the cassette stably integrated into their genome were superinfec...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.80.7.3624-3633.2006

    authors: Morilla G,Castillo AG,Preiss W,Jeske H,Bejarano ER

    更新日期:2006-04-01 00:00:00

  • Spatial and temporal organization of adeno-associated virus DNA replication in live cells.

    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

    authors: Fraefel C,Bittermann AG,Büeler H,Heid I,Bächi T,Ackermann M

    更新日期:2004-01-01 00:00:00

  • Persistent activation of STAT3 by latent Kaposi's sarcoma-associated herpesvirus infection of endothelial cells.

    abstract::Kaposi's sarcoma-associated herpesvirus (KSHV) is the infectious cause of Kaposi's sarcoma, primary effusion lymphoma, and plasmablastic multicentric Castleman's disease. STAT3 has been shown to be important for the maintenance of primary effusion lymphoma cells in culture and is chronically activated in many tumor ce...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.01769-06

    authors: Punjabi AS,Carroll PA,Chen L,Lagunoff M

    更新日期:2007-03-01 00:00:00

  • The myxoma virus m-t5 ankyrin repeat host range protein is a novel adaptor that coordinately links the cellular signaling pathways mediated by Akt and Skp1 in virus-infected cells.

    abstract::Most poxviruses express multiple proteins containing ankyrin (ANK) repeats accounting for a large superfamily of related but unique determinants of poxviral tropism. Recently, select members of this novel family of poxvirus proteins have drawn considerable attention for their potential roles in modulating intracellula...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.00963-09

    authors: Werden SJ,Lanchbury J,Shattuck D,Neff C,Dufford M,McFadden G

    更新日期:2009-12-01 00:00:00

  • Insight into vaccine development for Alpha-coronaviruses based on structural and immunological analyses of spike proteins.

    abstract::Coronaviruses that infect humans belong to the Alpha-coronavirus (including HCoV-229E) and Beta-coronavirus (including SARS-CoV and SARS-CoV-2) genera. In particular, SARS-CoV-2 is currently a major threat to public health worldwide. The spike (S) homotrimers bind to their receptors via the receptor-binding domain (RB...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.02284-20

    authors: Shi Y,Shi J,Sun L,Tan Y,Wang G,Guo F,Hu G,Fu Y,Fu ZF,Xiao S,Peng G

    更新日期:2021-01-07 00:00:00