r-(sh-Polypeptide-60 Oligopeptide-166) is a single chain recombinant peptide, produced by fermentation in E. coli. The starting gene is synthesized by the fusion of the gene from sh-Polypeptide-60 and Oligopeptide-166. The fusion peptide contains 163 amino acids which may contain disulfide bonds and/or glycosylation, and consists of the proper sequence of the 20 standard amino acids.