5V1H:
reference: Capturing a mammalian DNA polymerase extending from an oxidized nucleotide., Whitaker AM, Smith MR, Schaich MA, Freudenthal BD, Nucleic Acids Res. 2017 Apr 26. doi: 10.1093/nar/gkx293. PMID: 28449123

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