4X0G:
reference: Common and distinct DNA-binding and regulatory activities of the BEN-solo transcription factor family., Dai Q, Ren A, Westholm JO, Duan H, Patel DJ, Lai EC, Genes Dev. 2015 Jan 1;29(1):48-62. doi: 10.1101/gad.252122.114. PMID: 25561495

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