sr-Pitcher Plant Oligopeptide-1 is a single chain recombinant protein produced by fermentation in E. coli. The starting gene is synthetically derived and inspired by the gene which codes for DUF793 Domain-Containing Protein found in the Albany pitcher plant, Cephalotus follicularis. The parent protein contains a maximum of 308 amino acids which may contain disulfide bonds and/or glycosylation, and consists of the proper sequence of the 20 standard amino acids.