sr-(Tripeptide-68 s-Mussel Polypeptide-1 s-Mussel Oligopeptide-1 s-Mussel Polypeptide-1 Dipeptide-40) is a single chain fusion peptide, produced by fermentation in E. coli. The starting gene is synthesized by the fusion of the gene from Tripeptide-68, s-Mussel Oligopeptide-1, s-Mussel Polypeptide-1 and Dipeptide-40. The fusion peptide contains 321 amino acids which may contain disulfide bonds and/or glycosylation, and consists of the proper sequence of the 20 standard amino acids.