Q6NTF7: DNA dC->dU-editing enzyme APOBEC-3H (APOBEC3H)

DNA dC->dU-editing enzyme APOBEC-3H (APOBEC3H) is a 200-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q6NTF7.

Gene
APOBEC3H
Organism
Homo sapiens
Length
200 residues
Mean pLDDT
89.2
Model
AF-Q6NTF7-F1 v6
Model created
1 Aug 2025
PDB structures
4

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Model confidence (pLDDT)

The mean pLDDT of this model is 89.2 (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 accurate79%
70 to 90Confident: backbone generally right12%
50 to 70Low: treat with caution2%
Below 50Very low: often disordered regions8%

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:16571802, PubMed:16920826, PubMed:18779051, PubMed:18827027, PubMed:20062055, PubMed:22915799, PubMed:29290613). The A3H-var/haplotype 2 exhibits antiviral activity against vif-deficient HIV-1 (PubMed:18299330, PubMed:21835787, PubMed:23097438, PubMed:29290613). 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…

Subunit structure

Homodimer (PubMed:29290613). Interacts with AGO1, AGO2 and AGO3 (PubMed:22915799)

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
5W45X-ray2.49 ÅA/B=2-177
8FVIEM3.24 ÅA=1-181
6B0BX-ray3.28 ÅA/E=1-181
6BBOX-ray3.43 ÅA/E=3-181

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