Relaxin-3 (RLN3) is a 142-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q8WXF3.
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The mean pLDDT of this model is 62.5 (low 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 | 7% |
| 70 to 90 | Confident: backbone generally right | 32% |
| 50 to 70 | Low: treat with caution | 21% |
| Below 50 | Very low: often disordered regions | 39% |
What pLDDT means and how to read it
May play a role in neuropeptide signaling processes. Ligand for LGR7, RXFP3 and RXFP4
Heterodimer of a B chain and an A chain linked by two disulfide bonds
Secreted
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 9KFI | EM | 2.91 Å | A=119-142, B=31-52 |
| 9KFK | EM | 2.95 Å | A=119-142, B=34-52 |
| 2FHW | NMR | A=119-142, B=26-52 | |
| 2K1V | NMR | B=26-52 |
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