1FQ8:
reference: X-ray structures of five renin inhibitors bound to saccharopepsin: exploration of active-site specificity., Cronin NB, Badasso MO, J Tickle I, Dreyer T, Hoover DJ, Rosati RL, Humblet CC, Lunney EA, Cooper JB, J Mol Biol 2000 Nov 10;303(5):745-60. PMID: 11061973

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