2M2V:
reference: How a Low-Fidelity DNA Polymerase Chooses Non-Watson-Crick from Watson-Crick Incorporation., Wu WJ, Su MI, Wu JL, Kumar S, Lim LH, Wang CW, Nelissen FH, Chen MC, Doreleijers JF, Wijmenga SS, Tsai MD, J Am Chem Soc. 2014 Mar 21. PMID: 24617852

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