1QZQ:
reference: Analysis of Human Tyrosyl-DNA Phosphodiesterase I Catalytic Residues., Raymond AC, Rideout MC, Staker B, Hjerrild K, Burgin AB Jr, J Mol Biol 2004 May 14;338(5):895-906. PMID: 15111055

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