2P5O:
reference: Crystallographic snapshots of a replicative DNA polymerase encountering an abasic site., Hogg M, Wallace SS, Doublie S, EMBO J. 2004 Apr 7;23(7):1483-93. Epub 2004 Apr 1. PMID: 15057283

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