1HOM:
reference: Determination of the three-dimensional structure of the Antennapedia homeodomain from Drosophila in solution by 1H nuclear magnetic resonance spectroscopy., Billeter M, Qian Y, Otting G, Muller M, Gehring WJ, Wuthrich K, J Mol Biol 1990 Jul 5;214(1):183-97. PMID: 2164583

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