Apidaecins type 73 (APID73) is a 283-residue protein from Apis mellifera. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q06602.
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The mean pLDDT of this model is 49.2 (very low 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 | 0% |
| 70 to 90 | Confident: backbone generally right | 3% |
| 50 to 70 | Low: treat with caution | 42% |
| Below 50 | Very low: often disordered regions | 56% |
What pLDDT means and how to read it
Apidaecins have bactericidal activity; predominantly against Gram-negative bacteria (PubMed:2676519, PubMed:7929322). They seem to interfere with cell propagation (PubMed:2676519)
Secreted
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 4E81 | X-ray | 1.9 Å | C/D=268-279 |
| 8RPZ | EM | 2.44 Å | x/y/z=239-255 |
| 8RQ0 | EM | 2.44 Å | x/y/z=239-255 |
| 8RQ2 | EM | 2.44 Å | x/y/z=239-255 |
| 8RPY | EM | 2.64 Å | y/z=239-255 |
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