6W2M:
reference: Structure of a DNA polymerase abortive complex with the 8OG:dA base pair at the primer terminus., Batra VK, Wilson SH, Commun Biol. 2020 Jul 3;3(1):348. doi: 10.1038/s42003-020-1080-4. PMID: 32620932

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