Human nkt tcr beta chain (B2M) is a 259-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Jun 2022. UniProt accession: K7N5M4.
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The mean pLDDT of this model is 90.9 (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 | 82% |
| 70 to 90 | Confident: backbone generally right | 9% |
| 50 to 70 | Low: treat with caution | 5% |
| Below 50 | Very low: often disordered regions | 4% |
What pLDDT means and how to read it
Cell membrane
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 6AT6 | X-ray | 1.42 Å | B=120-249 |
| 6BJ8 | X-ray | 1.75 Å | H=7-249 |
| 6U07 | X-ray | 1.76 Å | B=120-249 |
| 7N4K | X-ray | 1.85 Å | E=107-249 |
| 7N5C | X-ray | 1.87 Å | E=107-249 |
| 6BJ3 | X-ray | 1.9 Å | H=7-249 |
| 7N5P | X-ray | 2.09 Å | E=107-249 |
| 5WLG | X-ray | 2.1 Å | E/J=120-249 |
| 6R2L | X-ray | 2.3 Å | E=107-249 |
| 6D78 | X-ray | 2.35 Å | E=5-249 |
| 7M72 | X-ray | 2.4 Å | D=4-249 |
| 6Q3S | X-ray | 2.5 Å | E=123-249 |
| 7NDQ | X-ray | 2.55 Å | EEE=120-249 |
| 4EN3 | X-ray | 2.57 Å | B=1-259 |
| 5MEN | X-ray | 2.81 Å | E=125-249 |
| 6PY2 | X-ray | 2.83 Å | E=7-249 |
| 6CW6 | X-ray | 2.85 Å | D=4-248 |
| 7NDU | X-ray | 2.9 Å | EEE=120-249 |
| 6DKP | X-ray | 2.97 Å | E=120-249 |
| 4NDM | X-ray | 3.01 Å | A=120-248 |
Showing 20 of 24 experimental structures (best resolution first).
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