| 3JQW: reference: Structural comparison of ColH and ColG collagen-binding domains from Clostridium histolyticum., Bauer R, Wilson JJ, Philominathan ST, Davis D, Matsushita O, Sakon J, J Bacteriol. 2012 Nov 9. PMID: 23144249 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).