Answers are grounded in this paper and cite their sources.
The substrate specificity of the partially purified acid protease in Nepenthes (nepenthesin) was studied by hydrolyzing several peptides of known structures. The results indicated that nepenthesin was predominantly specific to aspartic acid residue at its carboxyl side or at its amino side, and was apparently specific also to tyrosine and alanine residues at their carboxyl sides. The protease seemed to be an endopeptidase.
No takes yet. Share an insight, caveat, or question.
Amagase et al. (1969) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: