Alignment of the 5‘ end of the Protobothrops flavoviridis phospholipase B (PLB) transcript [AB848155] with the entire Ovophis okinavensis PLB transcript [AB848284]. Residues highlighted in orange represent the putative Crotalus adamanteus signal peptide sequence . Chymotryptic peptides are shown in purple. Tryptic peptides are in blue. Glu-C peptides are in green. Peptides highlighted in gray were from a venom sample that was undigested. The peptides were naturally occurring, probably as a result of auto-catalysis. Peptide coverage of the Ovophis transcript [AB848284] was 50.5%. To the best of our knowledge, these are the first peptidyl data for a snake venom PLB.