SUMO-conjugating enzyme UBC9 (UBC9) is a 157-residue protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c). This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P50623.
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The mean pLDDT of this model is 96.6 (very high 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 | 98% |
| 70 to 90 | Confident: backbone generally right | 1% |
| 50 to 70 | Low: treat with caution | 1% |
| Below 50 | Very low: often disordered regions | 1% |
What pLDDT means and how to read it
E2 ubiquitin-like--protein ligase mediating SUMO/Smt3 attachment to septins and PCNA. Seems to be involved in degradation of S- (CLB5) and M-phase cyclins (CLB2)
Interacts with SIZ1
Nucleus
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 2GJD | X-ray | 1.75 Å | A/B/C/D=1-157 |
| 2EKE | X-ray | 1.9 Å | A/B=1-157 |
| 3ONG | X-ray | 2.3 Å | B/D=1-157 |
| 5JNE | X-ray | 2.85 Å | B/F=1-157 |
| 7P47 | X-ray | 3.31 Å | C=1-157 |
| 6Q83 | X-ray | 4.53 Å | B=2-157 |
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