1NH3: Human Topoisomerase I Ara-C Complex
reference: Structural impact of the leukemia drug 1-beta-D-arabinofuranosylcytosine (Ara-C) on the covalent human topoisomerase I-DNA complex., Chrencik JE, Burgin AB, Pommier Y, Stewart L, Redinbo MR, J Biol Chem 2003 Apr 4;278(14):12461-6. Epub 2003 Jan 17. PMID: 12533542

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