. "Reviewed: Zheng, B, 2009-10-20"^^ . "Edited: Jassal, B, 2008-11-19 15:14:38"^^ . "Authored: Katajisto, P, Makela, T, Wu, J, 2008--1-1-"^^ . "If AMP:ATP ratio rises, AMP (instead of ATP) is bound by the AMPK-gamma subunit, which inhibits the dephosphorylation of the AMPK-alpha subunit resulting in activation of AMPK. It is not clear, as of yet, whether AMP binds to unphosphorylated AMPK."^^ . . . . . . . "Phosphorylated AMPK binds AMP"^^ . . . .