4KI8:
reference: Crystal structure of a GroEL-ADP complex in the relaxed allosteric state at 2.7 A resolution., Fei X, Yang D, Laronde-Leblanc N, Lorimer GH, Proc Natl Acad Sci U S A. 2013 Jul 16. PMID: 23861496

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