1TZH:
reference: Synthetic antibodies from a four-amino-acid code: A dominant role for tyrosine in antigen recognition., Fellouse FA, Wiesmann C, Sidhu SS, Proc Natl Acad Sci U S A 2004 Aug 24;101(34):12467-72. Epub 2004 Aug 11. PMID: 15306681

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