1A7X:
reference: Chemical inducers of dimerization: the atomic structure of FKBP12-FK1012A-FKBP12., Schultz LW, Clardy J, Bioorg Med Chem Lett 1998 Jan 6;8(1):1-6. PMID: 9871618

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