2VL1:
reference: A recruited protease is involved in catabolism of pyrimidines., Andersen B, Lundgren S, Dobritzsch D, Piskur J, J Mol Biol. 2008 May 30;379(2):243-50. Epub 2008 Apr 7. PMID: 18448119

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