1YSM:
reference: The Modular Structure of SIP Facilitates Its Role in Stabilizing Multiprotein Assemblies(,)., Bhattacharya S, Lee YT, Michowski W, Jastrzebska B, Filipek A, Kuznicki J, Chazin WJ, Biochemistry 2005 Jul 12;44(27):9462-9471. PMID: 15996101

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