2K8M:
reference: S100A13-C2A binary complex structure-a key component in the acidic fibroblast growth factor for the non-classical pathway., Mohan SK, Rani SG, Kumar SM, Yu C, Biochem Biophys Res Commun. 2009 Mar 13;380(3):514-9. Epub 2009 Jan 29. PMID: 19284995

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