Platinum sensitivity protein 3 (PSY3) is a 242-residue protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c). This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q12318.
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The mean pLDDT of this model is 81.6 (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 | 43% |
| 70 to 90 | Confident: backbone generally right | 36% |
| 50 to 70 | Low: treat with caution | 14% |
| Below 50 | Very low: often disordered regions | 7% |
What pLDDT means and how to read it
Required for resistance to the DNA-damaging agents methyl methanesulfonate (MMS), cisplatin and oxaliplatin, but not to mitomycin C. Plays a role in protection against mutation accumulation. May be a component of the recombination-repair pathway
Component of the SHU complex composed of at least CSM2, PSY3, SHU1 and SHU2
Nucleus
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 3VU9 | X-ray | 1.75 Å | A=1-242 |
| 4EQ6 | X-ray | 1.8 Å | B=1-242 |
| 4DT1 | X-ray | 1.9 Å | B=1-242 |
| 5XYN | X-ray | 3.3 Å | A=1-242 |
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