3KDM:
reference: The testosterone binding mechanism of an antibody derived from a naive human scFv library., Niemi MH, Takkinen K, Amundsen LK, Soderlund H, Rouvinen J, Hoyhtya M, J Mol Recognit. 2011 Mar-Apr;24(2):209-19. doi: 10.1002/jmr.1039. PMID: 21360611

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