Apical membrane antigen 1 (AMA-1) is a 622-residue protein from Plasmodium falciparum (isolate FC27 / Papua New Guinea). This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P22621.
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The mean pLDDT of this model is 75.6 (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 | 48% |
| 70 to 90 | Confident: backbone generally right | 20% |
| 50 to 70 | Low: treat with caution | 7% |
| Below 50 | Very low: often disordered regions | 25% |
What pLDDT means and how to read it
Involved in parasite invasion of erythrocytes
Membrane
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 2Q8B | X-ray | 2.3 Å | A=104-438 |
| 2Q8A | X-ray | 2.4 Å | A=104-438 |
| 9BJH | X-ray | 2.8 Å | A/B=104-438 |
| 9BJG | X-ray | 2.9 Å | A=104-438 |
| 1YXE | NMR | A=309-436 |
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