r-(Methionyl sh-Oligopeptide-1 Oligopeptide-164) is a single chain recombinant peptide, produced by fermentation in E. coli. The starting gene is synthesized by the fusion of the genes from sh-Oligopeptide-1 and Oligopeptide-164 with the initiation codon for methionine. The fusion peptide contains 64 amino acids which may contain disulfide bonds and/or glycosylation, and consists of the proper sequence of the 20 standard amino acids.