1YTS:
reference: A ligand-induced conformational change in the Yersinia protein tyrosine phosphatase., Schubert HL, Fauman EB, Stuckey JA, Dixon JE, Saper MA, Protein Sci 1995 Sep;4(9):1904-13. PMID: 8528087

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