r-Caudoviricetes Polypeptide-1 is a single chain recombinant protein produced by fermentation in E. coli. The starting gene, which codes for N-acetylmuramoyl-L-alanine Amidase, is directly isolated from Cardoviricetes. The parent protein contains a maximum of 282 amino acids which may contain disulfide bonds and/or glycosylation, and consists of the proper sequence of the 20 standard amino acids.