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. Author manuscript; available in PMC: 2009 Jan 25.
Published in final edited form as: J Mol Biol. 2007 Nov 22;375(4):1141–1151. doi: 10.1016/j.jmb.2007.11.045

Figure 7.

Figure 7

Proposed transition state structure representing an associative mechanism for phosphotransfer. Two sidechains from residues Lys 1195 and Thr 1173 and the Mg2+ ion are shown interacting with the equatorial oxygens to neutralize the negative charge on the pentacoordinate phosphorus intermediate.