sr-(Methionyl Tripeptide-46 Hexapeptide-40 Dipeptide-69 Escherichia Coli Polypeptide-2 Oligopeptide-229 Escherichia Phage Polypeptide-1) is a single chain recombinant peptide produced by fermentation in E. coli. The starting gene is synthesized by the fusion of the genes from Tripeptide-46, Hexapeptide-40, Dipeptide-69, sr-Escherichia Coli Polypeptide-2, Oligopeptide-229, and Escherichia Phage Polypeptide-1, with the initiation code for methionine. The fusion peptide contains 289 amino acids which may contain disulfide bonds and/or glycosylation, and consists of the proper sequence from the 20 standard amino acids.