1CFZ:
reference: Crystal structure of the hydrogenase maturating endopeptidase HYBD from Escherichia coli., Fritsche E, Paschos A, Beisel HG, Bock A, Huber R, J Mol Biol 1999 May 21;288(5):989-98. PMID: 10331925

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