s-Graham’s Frog Oligopeptide-1 is a single chain peptide produced synthetically to be identical to a portion of the protein Immunoregulatory Peptide Odorregulin E1 which is found in the frog, Rana draytonii, and contains 11 amino acids which may contain disulfide bonds and/or glycosylation. The parent protein contains a maximum of 53 amino acids and consists of the proper sequence of the 20 amino acids.