2L3O:
reference: Murine interleukin-3: structure, dynamics, and conformational heterogeneity in solution., Yao S, Young IG, Norton RS, Murphy JM, Biochemistry. 2011 Apr 5;50(13):2464-77. Epub 2011 Mar 2. PMID: 21329364

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