2MH6:
reference: NMR Structure of an Ethylene Interstrand Cross-Linked DNA which Mimics the Lesion Formed by 1,3-Bis(2-chloroethyl)-1-nitrosourea., O'Flaherty DK, Denisov AY, Noronha AM, Wilds CJ, ChemMedChem. 2014 Jun 16. doi: 10.1002/cmdc.201402121. PMID: 24931822

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