0 0 votes The amino acid substitution matrices in decreasing order of stringency for comparing protein sequences are PAM$250$, PAM$120$, PAM$100$ PAM$100$, PAM$120$, PAN$250$ PAM$250$, PAM$100$, PAM$120$ PAM$120$, PAM$250$, PAM$100$ Molecular Biology and Genetics: gate2014 protein bioinformatics molecular-biology-and-genetics + – Milicevic3306 7.9k points answer comment Share Follow 0 reply Please log in or register to add a comment.