Q9HC16: DNA dC->dU-editing enzyme APOBEC-3G (APOBEC3G)

DNA dC->dU-editing enzyme APOBEC-3G (APOBEC3G) is a 384-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q9HC16.

Gene
APOBEC3G
Organism
Homo sapiens
Length
384 residues
Mean pLDDT
88.6
Model
AF-Q9HC16-F1 v6
Model created
1 Aug 2025
PDB structures
22

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Model confidence (pLDDT)

The mean pLDDT of this model is 88.6 (confident overall). pLDDT is AlphaFold's per-residue confidence score from 0 to 100. In MolViewer, choose the B-factor color scheme to color the model by pLDDT, because AlphaFold stores it in the B-factor column.

pLDDT bandMeaningShare of residues
Above 90Very high: backbone and side chains are usually accurate66%
70 to 90Confident: backbone generally right27%
50 to 70Low: treat with caution6%
Below 50Very low: often disordered regions2%

What pLDDT means and how to read it

Function

DNA deaminase (cytidine deaminase) which acts as an inhibitor of retrovirus replication and retrotransposon mobility via deaminase-dependent and -independent mechanisms (PubMed:12808465, PubMed:16527742, PubMed:17121840, PubMed:18288108, PubMed:18849968, PubMed:19153609, PubMed:21123384, PubMed:22791714, PubMed:25542899). Exhibits potent antiviral activity against Vif-deficient HIV-1 (PubMed:12167863, PubMed:12859895, PubMed:14557625, PubMed:20219927, PubMed:21835787, PubMed:22807680, PubMed:22915799, PubMed:23097438, PubMed:23152537, PubMed:31397674). After the penetration of retroviral nucleocapsids into target cells of infection and the initiation of reverse transcription, it can induce…

Subunit structure

Homodimer (PubMed:11863358, PubMed:17020885, PubMed:18842592, PubMed:25542899). Homooligomer (PubMed:11863358, PubMed:17020885, PubMed:18842592). Can bind RNA to form ribonucleoprotein complexes of high-molecular-mass (HMM) or low-molecular-mass (LMM) (PubMed:11863358, PubMed:17020885, PubMed:18842592). HMM is inactive and heterogeneous in protein composition because of binding nonselectively to…

Subcellular location

Cytoplasm, Nucleus, Cytoplasm, P-body

Experimental structures in the PDB

Compare the prediction with experimentally determined structures of the same protein:

PDB IDMethodResolutionChains and residues
3V4KX-ray1.38 ÅA/B=191-380
7UXDX-ray1.5 ÅA=191-384
4ROWX-ray1.7 ÅA=193-384
4ROVX-ray1.8 ÅA/B=193-384
6BUXX-ray1.86 ÅA=191-384
5ZVBX-ray2.0 ÅA/B=198-221
3V4JX-ray2.04 ÅA/B=191-384
3IR2X-ray2.25 ÅA/B=191-384
3E1UX-ray2.3 ÅA=197-380
3IQSX-ray2.3 ÅA=197-380
5ZVAX-ray2.3 ÅA/B=197-221
8J62EM2.5 ÅA/B=11-384
8CX0EM2.7 ÅA=1-384
8H0IEM2.8 ÅA/B=11-384
6BWYX-ray2.9 ÅA/B/E/G=195-384
8CX2EM3.2 ÅA/F=1-384
8CX1EM3.3 ÅA/F=1-384
2JYWNMRA=198-384
2KBONMRA=193-384
2KEMNMRA=191-384

Showing 20 of 22 experimental structures (best resolution first).

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