3QBQ:
reference: Structure-based development of a receptor activator of nuclear factor-{kappa}B ligand (RANKL) inhibitor peptide and molecular basis for osteopetrosis., Ta HM, Nguyen GT, Jin HM, Choi J, Park H, Kim N, Hwang HY, Kim KK, Proc Natl Acad Sci U S A. 2010 Nov 8. PMID: 21059944

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