Nuclear protein STH1/NPS1 (STH1) is a 1359-residue protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c). This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P32597.
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The mean pLDDT of this model is 70.6 (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 | 20% |
| 70 to 90 | Confident: backbone generally right | 43% |
| 50 to 70 | Low: treat with caution | 15% |
| Below 50 | Very low: often disordered regions | 22% |
What pLDDT means and how to read it
Catalytic component of the chromatin structure-remodeling complex (RSC), which is involved in transcription regulation and nucleosome positioning. RSC is responsible for the transfer of a histone octamer from a nucleosome core particle to naked DNA. The reaction requires ATP and involves an activated RSC-nucleosome intermediate. Remodeling reaction also involves DNA translocation, DNA twist and conformational change. As a reconfigurer of centromeric and flanking nucleosomes, RSC complex is required both for proper kinetochore function in chromosome segregation and, via a PKC1-dependent signaling pathway, for organization of the cellular cytoskeleton. This subunit is the essential ATPase of…
Interacts directly with SFH1, CSE4, histones H3, H4 and H2B, and via its N-terminus, with RSC8. Interacts with LDB7, NPL6 and RTT102. Component of the two forms of the RSC complex composed of at least either RSC1 or RSC2, and ARP7, ARP9, LDB7, NPL6, RSC3, RSC30, RSC4, RSC58, RSC6, RSC8, RSC9, SFH1, STH1, HTL1 and probably RTT102. The complexes interact with histone and histone variant components…
Nucleus
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 6KMJ | X-ray | 1.4 Å | A=1248-1359 |
| 7F3S | X-ray | 1.4 Å | A=1248-1359 |
| 6UY1 | X-ray | 2.21 Å | A/B/C/D/E/F/G/H=1250-1359 |
| 6KMB | X-ray | 2.4 Å | A/B/C/D=1248-1359 |
| 6MR4 | X-ray | 2.71 Å | A/B/C/D/E/F=1250-1359 |
| 6V8O | EM | 3.07 Å | R=1-1359 |
| 6K15 | EM | 3.4 Å | J=1-1359 |
| 6VZ4 | EM | 3.9 Å | K=301-1097 |
| 6VZG | EM | 4.2 Å | K=301-1097 |
| 6KW3 | EM | 7.13 Å | J/W/Y=1-1359 |
| 6KW4 | EM | 7.55 Å | J/V/Y=1-1359 |
| 6KW5 | EM | 10.13 Å | J/P/Q=1-1359 |
| 6TDA | EM | 15.0 Å | S=1-1359 |
| 6V92 | EM | 20.0 Å | R=1-1359 |
| 6LQZ | NMR | B=1183-1240 |
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