2IEP:
reference: Crystal Structure of the Agrin-responsive Immunoglobulin-like Domains 1 and 2 of the Receptor Tyrosine Kinase MuSK., Stiegler AL, Burden SJ, Hubbard SR, J Mol Biol. 2006 Dec 1;364(3):424-33. Epub 2006 Sep 12. PMID: 17011580

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