1KMI:
reference: Structure and catalytic mechanism of the E. coli chemotaxis phosphatase CheZ., Zhao R, Collins EJ, Bourret RB, Silversmith RE, Nat Struct Biol 2002 Aug;9(8):570-5. PMID: 12080332

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