6F5B:
reference: Structural basis for DNA break recognition by ARTD2/PARP2., Obaji E, Haikarainen T, Lehtio L, Nucleic Acids Res. 2018 Oct 13. pii: 5128921. doi: 10.1093/nar/gky927. PMID: 30321391

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