MHC class II HLA-DQ-beta-1 (HLA-DQB1) is a 229-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Jun 2022. UniProt accession: O19712.
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The mean pLDDT of this model is 89.7 (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 | 73% |
| 70 to 90 | Confident: backbone generally right | 13% |
| 50 to 70 | Low: treat with caution | 10% |
| Below 50 | Very low: often disordered regions | 4% |
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 |
|---|---|---|---|
| 6U3M | X-ray | 1.9 Å | B/D=1-192 |
| 6MFG | X-ray | 2.0 Å | E/F=1-192 |
| 8W84 | X-ray | 2.1 Å | D=1-190 |
| 9EJG | X-ray | 2.2 Å | B=1-194 |
| 8W86 | X-ray | 2.24 Å | D/H=1-190 |
| 9EJH | X-ray | 2.45 Å | B=1-192 |
| 6MFF | X-ray | 2.6 Å | C=1-192 |
| 6U3O | X-ray | 2.74 Å | D/F=1-192 |
| 8W85 | X-ray | 2.77 Å | D/H=1-190 |
| 6U3N | X-ray | 2.8 Å | B=1-192 |
| 8W83 | X-ray | 2.82 Å | D/H/L/P=1-190 |
| 7SG0 | X-ray | 3.0 Å | B=1-192 |
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.