Melatonin Receptor Peptide Analogs
Catalog heading implying peptide action at melatonin receptors; melatonin signaling is mediated by a small molecule, not peptides.
Overview
Melatonin receptors (MT1 and MT2) are G protein-coupled receptors whose natural ligand is melatonin, a small indoleamine molecule, not a peptide. A catalog heading such as Melatonin Receptor Peptide Analogs therefore lacks a coherent scientific basis: no peptide ligand for these receptors is established in the literature, and circadian-rhythm pharmacology is dominated by melatonin itself and synthetic small-molecule analogs such as ramelteon. Products listed under this heading have no identifiable research identity and should be treated as speculative commercial entries.