Subtilisin-chymotrypsin inhibitor-2A is a 84-residue protein from Hordeum vulgare. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P01053.
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The mean pLDDT of this model is 85.3 (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 | 75% |
| 70 to 90 | Confident: backbone generally right | 1% |
| 50 to 70 | Low: treat with caution | 10% |
| Below 50 | Very low: often disordered regions | 14% |
What pLDDT means and how to read it
Inhibits both subtilisin and chymotrypsin
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 7A3M | X-ray | 1.01 Å | A=21-84 |
| 7AON | X-ray | 1.3 Å | A=21-84 |
| 1LW6 | X-ray | 1.5 Å | I=21-84 |
| 6QIY | X-ray | 1.5 Å | A=20-84 |
| 6QIZ | X-ray | 1.65 Å | A=21-84 |
| 1YPC | X-ray | 1.7 Å | I=21-84 |
| 1CQ4 | X-ray | 1.8 Å | A=21-59, B=61-84 |
| 5FFN | X-ray | 1.8 Å | I=13-84 |
| 7AOK | X-ray | 1.87 Å | A=21-84 |
| 5FBZ | X-ray | 1.9 Å | B/D=13-84 |
| 7A1H | X-ray | 1.9 Å | A=21-84 |
| 1YPA | X-ray | 2.0 Å | I=21-84 |
| 1YPB | X-ray | 2.0 Å | I=21-84 |
| 2CI2 | X-ray | 2.0 Å | I=2-84 |
| 2SNI | X-ray | 2.1 Å | I=2-84 |
| 1CIQ | X-ray | 2.2 Å | A=22-60, B=61-84 |
| 1COA | X-ray | 2.2 Å | I=21-84 |
| 1CIR | NMR | A=22-59, B=61-84 | |
| 1CIS | NMR | A=21-84 | |
| 3CI2 | NMR | A=19-84 |
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