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  • Title: Feline APOBEC3s, Barriers to Cross-Species Transmission of FIV?
    Author: Zhang Z, Gu Q, Marino D, Lee KL, Kong IK, Häussinger D, Münk C.
    Journal: Viruses; 2018 Apr 10; 10(4):. PubMed ID: 29642583.
    Abstract:
    The replication of lentiviruses highly depends on host cellular factors, which defines their species-specific tropism. Cellular restriction factors that can inhibit lentiviral replication were recently identified. Feline immunodeficiency virus (FIV) was found to be sensitive to several feline cellular restriction factors, such as apolipoprotein B mRNA-editing enzyme, catalytic polypeptide-like 3 (APOBEC3) and tetherin, but FIV evolved to counteract them. Here, we describe the molecular mechanisms by which feline APOBEC3 restriction factors inhibit FIV replication and discuss the molecular interaction of APOBEC3 proteins with the viral antagonizing protein Vif. We speculate that feline APOBEC3 proteins could explain some of the observed FIV cross-species transmissions described in wild Felids.
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