Inner kinetochore subunit CTF3 (CTF3) is a 733-residue protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c). This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q12748.
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The mean pLDDT of this model is 81.9 (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 | 37% |
| 70 to 90 | Confident: backbone generally right | 47% |
| 50 to 70 | Low: treat with caution | 11% |
| Below 50 | Very low: often disordered regions | 5% |
What pLDDT means and how to read it
Component of the central kinetochore, which mediates the attachment of the centromere to the mitotic spindle by forming essential interactions between the microtubule-associated outer kinetochore proteins and the centromere-associated inner kinetochore proteins. Required for establishing bipolar spindle-microtubule attachments and proper chromosome segregation
Component of the heterotrimeric kinetochore subcomplex CTF3, which consists of CTF3, MCM16 and MCM22 (PubMed:11782448). The CTF3 subcomplex is part of a larger constitutive centromere-associated network (CCAN) (also known as central kinetochore CTF19 complex in yeast), which is composed of at least AME1, CHL4, CNN1, CTF3, CTF19, IML3, MCM16, MCM21, MCM22, MHF1, MHF2, MIF2, NKP1, NKP2, OKP1 and…
Nucleus, Chromosome, centromere, kinetochore
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 6YPC | X-ray | 2.9 Å | I=1-245 |
| 6WUC | EM | 3.23 Å | I=1-733 |
| 8OVW | EM | 3.4 Å | I=1-733 |
| 8OW0 | EM | 3.4 Å | I=1-733 |
| 6QLE | EM | 3.55 Å | I=335-733 |
| 7L7Q | EM | 3.7 Å | I=1-733 |
| 8OW1 | EM | 3.7 Å | I/II=1-733 |
| 6QLD | EM | 4.15 Å | I=321-728 |
| 6OUA | EM | 4.18 Å | I=1-733 |
| 6NUW | EM | 4.25 Å | H/Y=1-733 |
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