Butyrophilin subfamily 3 member A3 (BTN3A3) is a 584-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: O00478.
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The mean pLDDT of this model is 82.8 (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 | 57% |
| 70 to 90 | Confident: backbone generally right | 22% |
| 50 to 70 | Low: treat with caution | 9% |
| Below 50 | Very low: often disordered regions | 11% |
What pLDDT means and how to read it
Plays a role in T-cell responses in the adaptive immune response
Homodimer
Cell membrane
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 6J0G | X-ray | 1.6 Å | A/B/C/D=328-515 |
| 6J0L | X-ray | 1.95 Å | A/B=328-515 |
| 6J0K | X-ray | 2.0 Å | A/B=328-515 |
| 4F8T | X-ray | 2.38 Å | A=30-246 |
| 5ZZ3 | X-ray | 3.0 Å | A=328-584 |
| 9II6 | EM | 3.27 Å | D=275-584 |
| 8ZJY | EM | 3.7 Å | E=30-584 |
| 8ZJZ | EM | 3.8 Å | E=30-511 |
| 8ZYR | EM | 4.07 Å | C=30-584 |
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