2Y3U:
reference: Structure of collagenase G reveals a chew-and-digest mechanism of bacterial collagenolysis., Eckhard U, Schonauer E, Nuss D, Brandstetter H, Nat Struct Mol Biol. 2011 Sep 25;18(10):1109-14. doi: 10.1038/nsmb.2127. PMID: 21947205

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