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. 2004 Jul 27;381(Pt 3):561–579. doi: 10.1042/BJ20040752

Figure 3. Associative and dissociative transition states for phosphotransferase catalysis in PFK-2.

Figure 3

In the single displacement reaction, both substrates must be bound to the enzyme forming a ternary complex. Phosphoryl transfer can then take place either via (A) an associative transition state (SN2-like) or (B) a dissociative transition state (SN1-like).