Metastasis-suppressor KiSS-1 (KISS1) is a 138-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q15726.
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The mean pLDDT of this model is 59.4 (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 | 9% |
| 70 to 90 | Confident: backbone generally right | 24% |
| 50 to 70 | Low: treat with caution | 23% |
| Below 50 | Very low: often disordered regions | 44% |
What pLDDT means and how to read it
Kisspeptins are ligands for the G protein-coupled receptor KISS1R/GPR54 (PubMed:11385580, PubMed:11457843, PubMed:11527393, PubMed:12879005, PubMed:15020672, PubMed:15596153). The hypothalamic KISS1/KISS1R signaling system plays a central role in the regulation of the hypothalamic-pituitary-gonadal reproductive axis by modulating the secretion of gonadotropin-releasing hormone (GnRH) from GnRH neurons (PubMed:15219839, PubMed:15598687, PubMed:22335740). In these neurons, kisspeptin binding to its receptor activates G(q)-dependent signaling, leading to phospholipase C (PLC) activation, and hydrolysis of phosphatidylinositol 4,5-bisphosphate (PIP2) (PubMed:15598687, PubMed:22335740). The…
Secreted
Compare the prediction with experimentally determined structures of the same protein:
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