2XWT:
reference: Crystal structure of the TSH receptor (TSHR) bound to a blocking-type TSHR autoantibody., Sanders P, Young S, Sanders J, Kabelis K, Baker S, Sullivan A, Evans M, Clark J, Wilmot J, Hu X, Roberts E, Powell M, Nunez Miguel R, Furmaniak J, Rees Smith B, J Mol Endocrinol. 2011 Feb 15;46(2):81-99. Print 2011. PMID: 21247981

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