DNA-binding protein 7a (sso7a1) is a 64-residue protein from Saccharolobus solfataricus (strain ATCC 35092 / DSM 1617 / JCM 11322 / P2). This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P61991.
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The mean pLDDT of this model is 91.4 (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 | 84% |
| 70 to 90 | Confident: backbone generally right | 14% |
| 50 to 70 | Low: treat with caution | 2% |
| Below 50 | Very low: often disordered regions | 0% |
What pLDDT means and how to read it
Can constrain negative DNA supercoils (By similarity). May be involved in maintaining the integrity of the genome at high temperature (Probable) (PubMed:7887965). Has RNA endonuclease activity with a narrow substrate specificity; the cleavage products are 3'-phosphooligonucleotides (PubMed:8425540)
Homodimer
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 6QBA | X-ray | 1.8 Å | B=2-62 |
| 1B4O | NMR | A=2-63 | |
| 1JIC | NMR | A=2-63 | |
| 1SSO | NMR | A=2-63 | |
| 2CVR | NMR | A=2-63 |
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