3N3F:
reference: Crystal structure of the human collagen XV trimerization domain: A potent trimerizing unit common to multiplexin collagens., Wirz JA, Boudko SP, Lerch TF, Chapman MS, Bachinger HP, Matrix Biol. 2010 Oct 12. PMID: 20932905

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