5MVQ:
reference: 5-Formylcytosine does not change the global structure of DNA., Hardwick JS, Ptchelkine D, El-Sagheer AH, Tear I, Singleton D, Phillips SEV, Lane AN, Brown T, Nat Struct Mol Biol. 2017 May 15. doi: 10.1038/nsmb.3411. PMID: 28504696

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