Myosin regulatory light polypeptide 9 (MYL9) is a 172-residue protein from Bos taurus. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q5E9E2.
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The mean pLDDT of this model is 83.2 (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 | 57% |
| 70 to 90 | Confident: backbone generally right | 25% |
| 50 to 70 | Low: treat with caution | 5% |
| Below 50 | Very low: often disordered regions | 13% |
What pLDDT means and how to read it
Myosin regulatory subunit that plays an important role in regulation of both smooth muscle and nonmuscle cell contractile activity via its phosphorylation. Implicated in cytokinesis, receptor capping, and cell locomotion (By similarity). In myoblasts, may regulate PIEZO1-dependent cortical actomyosin assembly involved in myotube formation (By similarity)
Myosin is a hexamer of 2 heavy chains and 4 light chains: interacts with myosin heavy chain MYO19 (By similarity). Interacts with LUZP1; the interaction results in inhibition of phosphorylation of MYL9 by DAPK3 (By similarity)
Cytoplasm, cytoskeleton, Cytoplasm, cell cortex
Compare the prediction with experimentally determined structures of the same protein:
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