3LA4:
reference: Crystal structure of the first plant urease from jack bean: 83 years of journey from its first crystal to molecular structure., Balasubramanian A, Ponnuraj K, J Mol Biol. 2010 Jul 16;400(3):274-83. Epub 2010 May 13. PMID: 20471401

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