8fvi
From Proteopedia
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== Function == | == Function == | ||
[https://www.uniprot.org/uniprot/ABC3H_HUMAN ABC3H_HUMAN] DNA deaminase (cytidine deaminase) which acts as an inhibitor of retrovirus replication and retrotransposon mobility via deaminase-dependent and -independent mechanisms. The A3H-var/haplotype 2 exhibits antiviral activity against vif-deficient HIV-1. After the penetration of retroviral nucleocapsids into target cells of infection and the initiation of reverse transcription, it can induce the conversion of cytosine to uracil in the minus-sense single-strand viral DNA, leading to G-to-A hypermutations in the subsequent plus-strand viral DNA. The resultant detrimental levels of mutations in the proviral genome, along with a deamination-independent mechanism that works prior to the proviral integration, together exert efficient antiretroviral effects in infected target cells. Selectively targets single-stranded DNA and does not deaminate double-stranded DNA or single- or double-stranded RNA. Exhibits antiviral activity also against T-cell leukemia virus type 1 (HTLV-1) and may inhibit the mobility of LTR and non-LTR retrotransposons.<ref>PMID:16571802</ref> <ref>PMID:16920826</ref> <ref>PMID:18299330</ref> <ref>PMID:18779051</ref> <ref>PMID:18827027</ref> <ref>PMID:20062055</ref> <ref>PMID:21835787</ref> <ref>PMID:22457529</ref> <ref>PMID:22915799</ref> <ref>PMID:23097438</ref> | [https://www.uniprot.org/uniprot/ABC3H_HUMAN ABC3H_HUMAN] DNA deaminase (cytidine deaminase) which acts as an inhibitor of retrovirus replication and retrotransposon mobility via deaminase-dependent and -independent mechanisms. The A3H-var/haplotype 2 exhibits antiviral activity against vif-deficient HIV-1. After the penetration of retroviral nucleocapsids into target cells of infection and the initiation of reverse transcription, it can induce the conversion of cytosine to uracil in the minus-sense single-strand viral DNA, leading to G-to-A hypermutations in the subsequent plus-strand viral DNA. The resultant detrimental levels of mutations in the proviral genome, along with a deamination-independent mechanism that works prior to the proviral integration, together exert efficient antiretroviral effects in infected target cells. Selectively targets single-stranded DNA and does not deaminate double-stranded DNA or single- or double-stranded RNA. Exhibits antiviral activity also against T-cell leukemia virus type 1 (HTLV-1) and may inhibit the mobility of LTR and non-LTR retrotransposons.<ref>PMID:16571802</ref> <ref>PMID:16920826</ref> <ref>PMID:18299330</ref> <ref>PMID:18779051</ref> <ref>PMID:18827027</ref> <ref>PMID:20062055</ref> <ref>PMID:21835787</ref> <ref>PMID:22457529</ref> <ref>PMID:22915799</ref> <ref>PMID:23097438</ref> | ||
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| + | ==See Also== | ||
| + | *[[Virion infectivity factor|Virion infectivity factor]] | ||
== References == | == References == | ||
<references/> | <references/> | ||
Revision as of 08:01, 1 May 2024
Human APOBEC3H bound to HIV-1 Vif in complex with CBF-beta, ELOB, ELOC, and CUL5
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