Chromosome alignment defect 1 (cal1) is a 979-residue protein from Drosophila melanogaster. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q9VEN2.
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The mean pLDDT of this model is 55.0 (low 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 | 3% |
| 70 to 90 | Confident: backbone generally right | 25% |
| 50 to 70 | Low: treat with caution | 13% |
| Below 50 | Very low: often disordered regions | 59% |
What pLDDT means and how to read it
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 6XWV | X-ray | 2.27 Å | E=1-979 |
| 6XWT | X-ray | 3.47 Å | E/F=1-979 |
| 6XWS | X-ray | 4.36 Å | C=1-47 |
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