1HCE:
reference: Structure of hisactophilin is similar to interleukin-1 beta and fibroblast growth factor., Habazettl J, Gondol D, Wiltscheck R, Otlewski J, Schleicher M, Holak TA, Nature 1992 Oct 29;359(6398):855-8. PMID: 1436061

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