Pericentriolar material 1 protein (PCM1) is a 2024-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q15154.
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The mean pLDDT of this model is 48.0 (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 | 9% |
| 70 to 90 | Confident: backbone generally right | 18% |
| 50 to 70 | Low: treat with caution | 6% |
| Below 50 | Very low: often disordered regions | 67% |
What pLDDT means and how to read it
Required for centrosome assembly and function (PubMed:12403812, PubMed:15659651, PubMed:16943179). Essential for the correct localization of several centrosomal proteins including CEP250, CETN3, PCNT and NEK2 (PubMed:12403812, PubMed:15659651). Required to anchor microtubules to the centrosome (PubMed:12403812, PubMed:15659651). Also involved in cilium biogenesis by recruiting the BBSome, a ciliary protein complex involved in cilium biogenesis, to the centriolar satellites (PubMed:20551181, PubMed:24121310, PubMed:27979967). Recruits the tubulin polyglutamylase complex (TPGC) to centriolar satellites (PubMed:34782749)
Self-associates. Interacts with C2CD3 (By similarity). Interacts with BBS4, BBS8, CETN3, HAP1, NDE1, NDEL1, MAP1LC3B, GABARAPAL2, and GABARAP (PubMed:12403812, PubMed:14520415, PubMed:15107855, PubMed:16291865, PubMed:24089205, PubMed:9361024). Interacts with CEP131; the interaction increases in response to ultraviolet light (UV) radiation (PubMed:24121310). Associates with microtubule;…
Cytoplasm, cytoskeleton, Cytoplasm, cytoskeleton, microtubule organizing center, centrosome, Cytoplasmic granule, Cytoplasm, cytoskeleton, microtubule organizing center, centrosome, centriolar satellite, Cytoplasm, cytoskeleton, cilium basal body
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 6HYL | X-ray | 1.56 Å | A/B=1959-1972 |
| 6HYM | X-ray | 1.86 Å | A/B=1959-1972 |
| 7Q46 | X-ray | 2.46 Å | B/D/F=1737-1751 |
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