PDB-1msm: The HIV protease (mutant Q7K L33I L63I) complexed with KNI-764 (an inhibitor)
PDB-1msn: The HIV protease (mutant Q7K L33I L63I V82F I84V) complexed with KNI-764 (an inhibitor)
PDB-2anl: X-ray crystal structure of the aspartic protease plasmepsin 4 from the malarial parasite plasmodium malariae bound to an allophenylnorstatine based inhibitor