2B1J:
reference: Switched or Not?: the Structure of Unphosphorylated CheY Bound to the N Terminus of FliM., Dyer CM, Dahlquist FW, J Bacteriol. 2006 Nov;188(21):7354-63. PMID: 17050923

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