1IBG:
reference: Structure and specificity of the anti-digoxin antibody 40-50., Jeffrey PD, Schildbach JF, Chang CY, Kussie PH, Margolies MN, Sheriff S, J Mol Biol. 1995 Apr 28;248(2):344-60. PMID: 7739045

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