| UniProt Protein Function: | 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. |
| NCBI Summary: | This gene encodes a member of the apolipoprotein B mRNA-editing enzyme catalytic polypeptide 3 family of proteins. The encoded protein is a cytidine deaminase that has antiretroviral activity by generating lethal hypermutations in viral genomes. Polymorphisms and alternative splicing in this gene influence its antiretroviral activity and are associated with increased resistence to human immunodeficiency virus type 1 infection in certain populations. Alternative splicing results in multiple transcript variants.[provided by RefSeq, Oct 2009] |
| UniProt Code: | Q6NTF7 |
| NCBI GenInfo Identifier: | 669250885 |
| NCBI Gene ID: | 164668 |
| NCBI Accession: | NP_001159474.2 |
| UniProt Secondary Accession: | Q6NTF7,Q5JYL9, Q6IC87, B0QYP0, B0QYP1, B7TQM5, E9PF38 |
| UniProt Related Accession: | Q6NTF7 |
| Molecular Weight: | 22 |
| NCBI Full Name: | DNA dC->dU-editing enzyme APOBEC-3H isoform SV-182 |
| NCBI Synonym Full Names: | apolipoprotein B mRNA editing enzyme catalytic subunit 3H |
| NCBI Official Symbol: | APOBEC3H |
| NCBI Official Synonym Symbols: | A3H; ARP10; ARP-10 |
| NCBI Protein Information: | DNA dC->dU-editing enzyme APOBEC-3H |
| UniProt Protein Name: | DNA dC->dU-editing enzyme APOBEC-3H |
| UniProt Synonym Protein Names: | APOBEC-related protein 10; ARP-10; Apolipoprotein B mRNA-editing enzyme catalytic polypeptide-like 3H; A3H |
| UniProt Gene Name: | APOBEC3H |
