DNA replication complex GINS protein PSF1 (PSF1) is a 208-residue protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c). This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q12488.
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The mean pLDDT of this model is 83.3 (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 | 31% |
| 70 to 90 | Confident: backbone generally right | 57% |
| 50 to 70 | Low: treat with caution | 9% |
| Below 50 | Very low: often disordered regions | 2% |
What pLDDT means and how to read it
Required for DNA replication. Functions as part of the GINS complex which plays an essential role in the initiation of DNA replication by binding to DNA replication origins and facilitating the assembly of the DNA replication machinery. Required for the chromatin binding of CDC45
Component of the GINS complex which is a heterotetramer of SLD5, PSF1, PSF2 and PSF3. Interacts with PSF2
Nucleus
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 8KG6 | EM | 3.07 Å | A=1-208 |
| 7PMK | EM | 3.2 Å | A=1-208 |
| 7PMN | EM | 3.2 Å | A=1-208 |
| 9E2Y | EM | 3.2 Å | A=1-208 |
| 9E2W | EM | 3.3 Å | A=1-208 |
| 8B9A | EM | 3.5 Å | C=1-208 |
| 8B9B | EM | 3.5 Å | C=1-208 |
| 9E2X | EM | 3.5 Å | A=1-208 |
| 3JC6 | EM | 3.7 Å | A=1-208 |
| 6SKL | EM | 3.7 Å | A=1-208 |
| 8P63 | EM | 3.7 Å | H=1-208 |
| 8XGC | EM | 3.7 Å | A=1-208 |
| 6PTJ | EM | 3.8 Å | A=1-208 |
| 6U0M | EM | 3.9 Å | A=1-208 |
| 8P5E | EM | 3.9 Å | H=1-208 |
| 8P62 | EM | 3.9 Å | H=1-208 |
| 8W7M | EM | 4.12 Å | A=1-208 |
| 8KG8 | EM | 4.23 Å | A=1-208 |
| 8KG9 | EM | 4.52 Å | A=1-208 |
| 8B9C | EM | 4.6 Å | C=1-208 |
Showing 20 of 28 experimental structures (best resolution first).
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