1YTN:
reference: The X-ray crystal structures of Yersinia tyrosine phosphatase with bound tungstate and nitrate. Mechanistic implications., Fauman EB, Yuvaniyama C, Schubert HL, Stuckey JA, Saper MA, J Biol Chem 1996 Aug 2;271(31):18780-8. PMID: 8702535

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