SPX domain-containing protein 2 (SPX2) is a 278-residue protein from Oryza sativa subsp. indica. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: A2X254.
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The mean pLDDT of this model is 75.2 (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 | 49% |
| 70 to 90 | Confident: backbone generally right | 17% |
| 50 to 70 | Low: treat with caution | 9% |
| Below 50 | Very low: often disordered regions | 25% |
What pLDDT means and how to read it
Inhibits PHR2 DNA-binding activity via a phosphate (Pi)-dependent protein interaction (By similarity). Together with SPX1, plays a negative role in the regulation of leaf inclination by preventing RLI1 transcription factor activity in Pi depleted conditions (By similarity)
Interacts (via SPX domain) with PHR2 (via C-terminus) (By similarity). Interacts with RLI1 in the nucleus to prevents its positive regulation of leaf inclination during phosphate (Pi) starvation (By similarity)
Nucleus
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 7D3Y | X-ray | 3.11 Å | A/B=1-202 |
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