positively regulates positive regulation process oxidative phosphorylation uncoupling positive regulation of oxidative phosphorylation uncoupling Any process that activates or increases the frequency, rate or extent of oxidative phosphorylation uncoupling. Oxidative phosphorylation uncoupling is a process that enables the transfer of protons from mitochondrial intermembrane space into mitochondrial matrix, dissipating the proton gradient across the mitochondrial inner membrane established by the electron transport chain during the oxidative phosphorylation (proton leak). Proton leak uncouples the processes of electron transport/proton generation and ATP synthesis.