1JAO:
reference: X-ray structures of human neutrophil collagenase complexed with peptide hydroxamate and peptide thiol inhibitors. Implications for substrate binding and rational drug design., Grams F, Reinemer P, Powers JC, Kleine T, Pieper M, Tschesche H, Huber R, Bode W, Eur J Biochem 1995 Mar 15;228(3):830-41. PMID: 7737183

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).