3PZP:
reference: Role of human DNA polymerase kappa in extension opposite from a cis-syn thymine dimer., Vasquez-Del Carpio R, Silverstein TD, Lone S, Johnson RE, Prakash L, Prakash S, Aggarwal AK, J Mol Biol. 2011 Apr 29;408(2):252-61. Epub 2011 Feb 24. PMID: 21354175

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