3FBY:
reference: The crystal structure of the signature domain of cartilage oligomeric matrix protein: implications for collagen, glycosaminoglycan and integrin binding., Tan K, Duquette M, Joachimiak A, Lawler J, FASEB J. 2009 Mar 10. PMID: 19276170

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