2XHS:
reference: Crystal structure of fushi tarazu factor 1 ligand binding domain/fushi tarazu Peptide complex identifies new class of nuclear receptors., Yoo J, Ko S, Kim H, Sampson H, Yun JH, Choe KM, Chang I, Arrowsmith CH, Krause HM, Cho HS, Lee W, J Biol Chem. 2011 Sep 9;286(36):31225-31. Epub 2011 Jul 20. PMID: 21775434

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