M protein, serotype 5 (emm5) is a 492-residue protein from Streptococcus pyogenes serotype M5. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P02977.
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The mean pLDDT of this model is 74.3 (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 | 38% |
| 70 to 90 | Confident: backbone generally right | 27% |
| 50 to 70 | Low: treat with caution | 14% |
| Below 50 | Very low: often disordered regions | 21% |
What pLDDT means and how to read it
This protein is one of the different antigenic serotypes of protein M. Protein M is closely associated with virulence of the bacterium and can render the organism resistant to phagocytosis
Secreted, cell wall
Compare the prediction with experimentally determined structures of the same protein:
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