Myosin essential light chain, striated adductor muscle is a 157-residue protein from Argopecten irradians. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P07291.
Explore in 3D Color by confidence AlphaFold DB UniProt
The mean pLDDT of this model is 94.6 (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 | 92% |
| 70 to 90 | Confident: backbone generally right | 7% |
| 50 to 70 | Low: treat with caution | 1% |
| Below 50 | Very low: often disordered regions | 0% |
What pLDDT means and how to read it
In molluscan muscle, calcium regulation is associated with myosin rather than with actin. Muscle myosin contains two types of light chains: the catalytic light chain, essential for ATPase activity, and the regulatory light chain, a calcium-binding protein responsible for Ca(2+) dependent binding and Ca(2+) dependent Mg-ATPase activity
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 1WDC | X-ray | 2.0 Å | C=2-157 |
| 3JVT | X-ray | 2.1 Å | C=2-157 |
| 1KK8 | X-ray | 2.3 Å | C=2-155 |
| 1B7T | X-ray | 2.5 Å | Z=2-157 |
| 1QVI | X-ray | 2.54 Å | Z=2-157 |
| 3JTD | X-ray | 2.57 Å | C=2-157 |
| 1SR6 | X-ray | 2.75 Å | C=2-157 |
| 1L2O | X-ray | 2.8 Å | C=2-157 |
| 1SCM | X-ray | 2.8 Å | C=5-153 |
| 1KQM | X-ray | 3.0 Å | C=2-157 |
| 1S5G | X-ray | 3.1 Å | Z=2-157 |
| 1KK7 | X-ray | 3.2 Å | Z=2-157 |
| 1KWO | X-ray | 3.8 Å | C=2-157 |
| 1DFK | X-ray | 4.2 Å | Z=4-155 |
| 1DFL | X-ray | 4.2 Å | X/Z=4-155 |
| 2W4T | EM | 35.0 Å | Z=5-155 |
| 2W4V | EM | 35.0 Å | Z=5-155 |
| 2W4W | EM | 35.0 Å | Z=5-155 |
MolViewer loads the AlphaFold model straight from AlphaFold DB into your browser. Show it as a cartoon, color by pLDDT, measure distances and angles, and load a PDB structure next to it to compare.