Ig kappa chain C region, B allele is a 106-residue protein from Rattus norvegicus. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P01835.
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The mean pLDDT of this model is 97.1 (very high 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 | 96% |
| 70 to 90 | Confident: backbone generally right | 3% |
| 50 to 70 | Low: treat with caution | 1% |
| Below 50 | Very low: often disordered regions | 0% |
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 |
|---|---|---|---|
| 1LK3 | X-ray | 1.91 Å | L/M=1-103 |
| 1C5D | X-ray | 2.4 Å | A/L=1-106 |
| 1BFO | X-ray | 2.6 Å | A/C/E/G=1-106 |
| 1FN4 | X-ray | 2.8 Å | A/C=3-106 |
| 4UAO | X-ray | 3.1 Å | B=1-106 |
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.