HLA class II histocompatibility antigen DQ alpha chain (HLA-DQA1) is a 254-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Jun 2022. UniProt accession: Q08AS3.
Explore in 3D Color by confidence AlphaFold DB UniProt
The mean pLDDT of this model is 85.8 (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 band | Meaning | Share of residues |
|---|---|---|
| Above 90 | Very high: backbone and side chains are usually accurate | 69% |
| 70 to 90 | Confident: backbone generally right | 14% |
| 50 to 70 | Low: treat with caution | 7% |
| Below 50 | Very low: often disordered regions | 11% |
What pLDDT means and how to read it
Endosome membrane, Lysosome membrane
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 9EJI | X-ray | 2.2 Å | A=24-206 |
| 6PY2 | X-ray | 2.83 Å | A=1-254 |
| 6PX6 | X-ray | 3.0 Å | A=1-254 |
MolViewer loads the AlphaFold model straight from AlphaFold DB into your browser. Show it as a cartoon, color by pLDDT, measure distances and angles, and load a PDB structure next to it to compare.