| Gene Name | APOBEC3A |
| HF Protein Name | DNA dC->dU-editing enzyme APOBEC-3A |
| HF Function | Anti retroviral factor |
| Uniprot ID | P31941 |
| Protein Sequence | View Fasta Sequence |
| NCBI Gene ID | 100913187;200315 |
| Host Factor (HF) Name in Paper | APOBEC3 |
| Gene synonyms | N.A. |
| Ensemble Gene ID | ENSG00000128383 |
| Ensemble Transcript | ENST00000249116 [P31941-1];ENST00000402255 [P31941-1];ENST00000570508 [P31941-1];ENST00000618553 [P31941-1];ENST00000623492 [P31941-1] |
| KEGG ID | Go to KEGG Database |
| Gene Ontology ID(s) | GO:0004126, GO:0005634, GO:0005737, GO:0008270, GO:0010529, GO:0044356, GO:0045071, GO:0045087, GO:0047844, GO:0051607, GO:0070383, GO:0071466, GO:0080111, |
| MINT ID | N.A. |
| STRING | Click to see interaction map |
| GWAS Analysis | Click to see gwas analysis |
| OMIM ID | 607109 |
| PANTHER ID | N.A. |
| PDB ID(s) | 2M65, 4XXO, 5KEG, 5SWW, |
| pfam ID | PF08210, |
| Drug Bank ID | N.A., |
| ChEMBL ID | CHEMBL1741179 |
| Organism | Homo sapiens (Human) |
| Virus Name | Human immunodeficiency virus 2 |
| Virus Short Name | HIV2 |
| Order | Unassigned |
| Virus Family | Retroviridae |
| Virus Subfamily | Orthoretrovirinae |
| Genus | Lentivirus |
| Species | Human immunodeficiency virus 2 |
| Host | Vertebrates |
| Cell Tropism | CD4+ T cells, macrophages and dendritic cells |
| Associated Disease | Acquired immunodeficiency syndrome |
| Mode of Transmission | Sexual contact, blood, breast feeding |
| VIPR DB link | N.A. |
| ICTV DB link | https://talk.ictvonline.org/ictv-reports/ictv_9th_report/reverse-transcribing-dna-and-rna-viruses-2011/w/rt_viruses/161/retroviridae |
| Virus Host DB link | http://www.genome.jp/virushostdb/view/?virus_lineage=Retroviridae |
| Paper Title | HIV-1 and HIV-2 Vif interact with human APOBEC3 proteins using completely different determinants |
| Author's Name | Jessica L. Smith, Taisuke Izumi, Timothy C. Borbet, Ariel N. Hagedorn, Vinay K. Pathak |
| Journal Name | Journal Of Virology |
| Pubmed ID | 24942576 |
| Abstract | Human APOBEC3 (A3) restriction factors provide intrinsic immunity against zoonotic transmission of pathogenic viruses. A3D, A3F, A3G, and A3H haplotype II (A3H-hapII) can be packaged into virion infectivity factor (Vif)-deficient HIVs to inhibit viral replication. To overcome these restriction factors, Vif binds to the A3 proteins in viral producer cells to target them for ubiquitination and proteasomal degradation, thus preventing their packaging into assembling virions. Therefore, the Vif-A3 interactions are attractive targets for novel drug development. HIV-1 and HIV-2 arose via distinct zoonotic transmission events of simian immunodeficiency viruses from chimpanzees and sooty mangabeys, respectively, and Vifs from these viruses have limited homology. To gain insights into the evolution of virus-host interactions that led to successful cross-species transmission of lentiviruses, we characterized the determinants of the interaction between HIV-2 Vif (Vif2) with human A3 proteins and compared them to the previously identified HIV-1 Vif (Vif1) interactions with the A3 proteins. We found that A3G, A3F, and A3H-hapII, but not A3D, were susceptible to Vif2-induced degradation. Alanine-scanning mutational analysis of the first 62 amino acids of Vif2 indicated that Vif2 determinants important for degradation of A3G and A3F are completely distinct from these regions in Vif1, as are the determinants in A3G and A3F that are critical for Vif2-induced degradation. These observations suggest that distinct Vif-A3 interactions evolved independently in different SIVs and their nonhuman primate hosts and conservation of the A3 determinants targeted by the SIV Vif proteins resulted in successful zoonotic transmission into humans. |
| Used Model | HEK293T cells |
| DOI | 10.1128/JVI.01318-14 |
