Ig kappa chain V-V region MOPC 21 is a 136-residue protein from Mus musculus. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P01634.
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The mean pLDDT of this model is 89.9 (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 | 77% |
| 70 to 90 | Confident: backbone generally right | 8% |
| 50 to 70 | Low: treat with caution | 9% |
| Below 50 | Very low: often disordered regions | 6% |
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 |
|---|---|---|---|
| 1UYW | X-ray | 2.0 Å | L/N=30-136 |
| 4KVC | X-ray | 2.31 Å | L=30-136 |
| 1IGC | X-ray | 2.6 Å | L=30-136 |
| 3J42 | EM | 21.0 Å | H/J/L=30-136 |
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