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. Author manuscript; available in PMC: 2016 Dec 15.
Published in final edited form as: Biochemistry. 2015 Dec 2;54(49):7248–7260. doi: 10.1021/acs.biochem.5b01082

Figure 7.

Figure 7

Structure showing imidazole poised for nucleophilic attack in CheYMPI•BeF3-. (A) Two imidazoles (purple) were complexed with CheY (PDB 5D2C). One imidazole is oriented over the BeF3- (phosphomimic) in a fashion consistent with nucleophilic attack. Another imidazole was associated with the metal (light teal). (B) Electron density map (2Fo-Fc) shows the presence of the imidazole over the Be. In both panels, the divalent metal is light teal, BeF3- is green and light cyan, and the imidazoles are purple.