Protein MRG2 (MRG2) is a 327-residue protein from Arabidopsis thaliana. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q4V3E2.
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The mean pLDDT of this model is 74.2 (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 | 34% |
| 70 to 90 | Confident: backbone generally right | 32% |
| 50 to 70 | Low: treat with caution | 10% |
| Below 50 | Very low: often disordered regions | 23% |
What pLDDT means and how to read it
Chromatin remodeling factor. Acts as a 'reader' protein by binding to H3K4me3 and H3K36me3 to control histone H4 acetylation. Increases the transcriptional levels of the flowering time genes FLC and FT (PubMed:25183522, PubMed:25211338). Binds the chromatin at the FT promoter upon interaction with CO (PubMed:25211338)
Interacts with HAM1 and HAM2 (PubMed:25183522). Interacts (via MRG domain) with CO (PubMed:25211338). Component of the NuA4 histone acetyltransferase complex (By similarity)
Nucleus
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 4PLI | X-ray | 1.65 Å | A/B=51-123 |
| 4PL6 | X-ray | 1.68 Å | A/B=51-123 |
| 4PLL | X-ray | 2.6 Å | A/B=51-123 |
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