5KIF:
reference: Structural impact of single ribonucleotides in DNA., Evich M, Spring-Connell AM, Storici F, Germann MW, Chembiochem. 2016 Aug 9. doi: 10.1002/cbic.201600385. PMID: 27504600

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