We measured each mACP sequence similarity to all other 137 peptides using the Optimal String Alignment distance (dOSA). Each distance between two sequences was calculated using the R package stringdist . This distance calculates the number of deletions, insertions, substitutions, and transpositions (maximum one) necessary to convert sequence A to sequence B. From dOSA, we could derive the sequence similarity index SOSA using the equation (Eq.5). A high similarity value means that sequence A has few mutations to convert into sequence B. Subsequently, the peptides with SOSA of 0.95-1 were considered analogous. They formed mACP families guided by both SOSA similarity and matching names. Subsequently, mACP families consisting of two or more peptides were selected and identified as ACP-S and ACP-NS. SOSA = 1 -dOSA (Eq.5)