5DYM:
reference: Crystal structure and DNA binding activity of a PadR family transcription regulator from hypervirulent Clostridium difficile R20291., Isom CE, Menon SK, Thomas LM, West AH, Richter-Addo GB, Karr EA, BMC Microbiol. 2016 Oct 4;16(1):231. PMID: 27716049

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