Exotoxin type A (speA) is a 250-residue protein from Streptococcus pyogenes. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P0DJY7.
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The mean pLDDT of this model is 86.6 (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 | 64% |
| 70 to 90 | Confident: backbone generally right | 22% |
| 50 to 70 | Low: treat with caution | 10% |
| Below 50 | Very low: often disordered regions | 4% |
What pLDDT means and how to read it
Causative agent of the symptoms associated with scarlet fever, have been associated with streptococcal toxic shock-like disease and may play a role in the early events of rheumatic fever
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 1FNU | X-ray | 1.94 Å | A/B/C/D=60-250 |
| 1L0Y | X-ray | 2.5 Å | B/D=34-250 |
| 1B1Z | X-ray | 2.57 Å | A/B/C/D=34-250 |
| 1UUP | X-ray | 2.6 Å | A/B/C/D=34-250 |
| 1L0X | X-ray | 2.8 Å | B/D=34-250 |
| 1HA5 | X-ray | 2.82 Å | A/B/C/D=34-249 |
| 1FNV | X-ray | 3.6 Å | A/B/C/D=34-250 |
| 1FNW | X-ray | 3.9 Å | A/B/C/D/E/F/G/H=34-250 |
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