Maltose/maltodextrin import ATP-binding protein MalK (malK) is a 371-residue protein from Escherichia coli (strain UTI89 / UPEC). This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q1R3Q1.
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The mean pLDDT of this model is 93.5 (very high 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 | 83% |
| 70 to 90 | Confident: backbone generally right | 17% |
| 50 to 70 | Low: treat with caution | 0% |
| Below 50 | Very low: often disordered regions | 0% |
What pLDDT means and how to read it
Part of the ABC transporter complex MalEFGK involved in maltose/maltodextrin import. Responsible for energy coupling to the transport system
The complex is composed of two ATP-binding proteins (MalK), two transmembrane proteins (MalG and MalK) and a solute-binding protein (MalE)
Cell inner membrane
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 2R6G | X-ray | 2.8 Å | A/B=1-371 |
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