Transcription factor SPN1 (SPN1) is a 410-residue protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c). This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q06505.
Explore in 3D Color by confidence AlphaFold DB UniProt
The mean pLDDT of this model is 71.4 (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 | 33% |
| 70 to 90 | Confident: backbone generally right | 22% |
| 50 to 70 | Low: treat with caution | 18% |
| Below 50 | Very low: often disordered regions | 27% |
What pLDDT means and how to read it
Transcription factor involved in RNA polymerase II transcription regulation. May function in both SPT15/TBP post-recruitment and recruitment steps of transcription
Interacts with ABD1, RBP1, SPT5 and SPT6
Nucleus
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 3NFQ | X-ray | 1.85 Å | A/B=141-310 |
| 3O8Z | X-ray | 2.15 Å | A=148-295 |
| 3OAK | X-ray | 2.15 Å | A/B=148-292 |
MolViewer loads the AlphaFold model straight from AlphaFold DB into your browser. Show it as a cartoon, color by pLDDT, measure distances and angles, and load a PDB structure next to it to compare.