Pichia Extract/sr-(sh-Polypeptide-172 Dipeptide-19) is a single chain recombinant peptide produced by fermentation in Pichia, where the final product contains proteins from the Pichia host. The starting gene is synthesized by the fusion of the genes from sh-Polypeptide-172 and Dipeptide-19. The fusion peptide contains 81 amino acids which may contain disulfide bonds and/or glycosylation, and consists of the proper sequence of the 20 standard amino acids.