1AIR:
reference: The Refined Three-Dimensional Structure of Pectate Lyase E from Erwinia chrysanthemi at 2.2 A Resolution., Lietzke SE, Scavetta RD, Yoder MD, Jurnak F, Plant Physiol 1996 May;111(1):73-92. PMID: 12226275

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