1JTA:
reference: Structure of pectate lyase A: comparison to other isoforms., Thomas LM, Doan CN, Oliver RL, Yoder MD, Acta Crystallogr D Biol Crystallogr 2002 Jun;58(Pt 6 Pt 2):1008-15. PMID: 12037303

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