1M4R:
reference: Crystal structure of recombinant human interleukin-22., Nagem RA, Colau D, Dumoutier L, Renauld JC, Ogata C, Polikarpov I, Structure (Camb) 2002 Aug;10(8):1051-62. PMID: 12176383

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