2D5V:
reference: DNA recognition mechanism of the ONECUT homeodomain of transcription factor HNF-6., Iyaguchi D, Yao M, Watanabe N, Nishihira J, Tanaka I, Structure. 2007 Jan;15(1):75-83. PMID: 17223534

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