Murine Leukemia Virus P50 Protein Counteracts APOBEC3 by Blocking Its Packaging
نویسندگان
چکیده
منابع مشابه
Inhibition of xenotropic murine leukemia virus-related virus by APOBEC3 proteins and antiviral drugs.
Xenotropic murine leukemia virus-related virus (XMRV), a gammaretrovirus, has been isolated from human prostate cancer tissue and from activated CD4(+) T cells and B cells of patients with chronic fatigue syndrome, suggesting an association between XMRV infection and these two diseases. Since APOBEC3G (A3G) and APOBEC3F (A3F), which are potent inhibitors of murine leukemia virus and Vif-deficie...
متن کاملThe glycosylated Gag protein of a murine leukemia virus inhibits the antiretroviral function of APOBEC3.
APOBEC proteins have evolved as innate defenses against retroviral infections. Human immunodeficiency virus (HIV) encodes the Vif protein to evade human APOBEC3G; however, mouse retroviruses do not encode a Vif homologue, and it has not been understood how they evade mouse APOBEC3. We report here a murine leukemia virus (MuLV) that utilizes its glycosylated Gag protein (gGag) to evade APOBEC3. ...
متن کاملDifferential sensitivity of murine leukemia virus to APOBEC3-mediated inhibition is governed by virion exclusion.
While members of the APOBEC3 family of human intrinsic resistance factors are able to restrict the replication of Vif-deficient forms of human immunodeficiency virus type 1 (HIV-1), they are unable to block replication of wild-type HIV-1 due to the action of Vif, which induces their degradation. In contrast, HIV-1 Vif is unable to block inhibition mediated by APOBEC3 proteins expressed by sever...
متن کاملExpression of IMP1 Enhances Production of Murine Leukemia Virus Vector by Facilitating Viral Genomic RNA Packaging
Murine leukemia virus (MLV)-based retroviral vector is widely used for gene transfer. Efficient packaging of the genomic RNA is critical for production of high-titer virus. Here, we report that expression of the insulin-like growth factor II mRNA binding protein 1 (IMP1) enhanced the production of infectious MLV vector. Overexpression of IMP1 increased the stability of viral genomic RNA in viru...
متن کاملSelective packaging of host tRNA's by murine leukemia virus particles does not require genomic RNA.
The 4S RNA contained in RNA tumor virus particles consists of a selected population of host tRNA's. However, the mechanism by which virions select host tRNA's has not been elucidated. We have considered a model which specifies that 35S genomic RNA determines which tRNA's are to be encapsidated as well as the relative amounts of these tRNA's within the virion. The model was tested by comparing t...
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ژورنال
عنوان ژورنال: Journal of Virology
سال: 2020
ISSN: 0022-538X,1098-5514
DOI: 10.1128/jvi.00032-20