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Mitochondrial uncoupling proteins (UCP) are members of the larger family of mitochondrial anion carrier proteins (MACP). UCPs separate, or uncouple, oxidative phosphorylation from ATP synthesis by dissipating the mitochondrial membrane potential as heat, also referred to as the mitochondrial proton leak. UCPs facilitate the transfer of anions ...
Mitochondrial uncoupling proteins (UCP) are members of the larger family of mitochondrial anion carrier proteins (MACP). UCPs separate oxidative phosphorylation from ATP synthesis with energy dissipated as heat, also referred to as the mitochondrial proton leak.
UCPs separate oxidative phosphorylation from ATP synthesis with energy dissipated as heat, also referred to as the mitochondrial proton leak. UCPs facilitate the transfer of anions from the inner to the outer mitochondrial membrane and the return transfer of protons from the outer to the inner mitochondrial membrane.
Structure of the human uncoupling protein UCP1. An uncoupling protein (UCP) is a mitochondrial inner membrane protein that is a regulated proton channel or transporter.An uncoupling protein is thus capable of dissipating the proton gradient generated by NADH-powered pumping of protons from the mitochondrial matrix to the mitochondrial intermembrane space.
This process is known as proton leak or mitochondrial uncoupling and is due to the facilitated diffusion of protons into the matrix. The process results in the unharnessed potential energy of the proton electrochemical gradient being released as heat. [ 21 ]
the substitution of all coupled processes (ATP synthesis, transhydrogenation, reverse electron flow, active transport of cations, etc.) by a cyclic proton transport mediated by the uncoupler the elimination of all protonic and cationic gradients generated across the mitochondrial or prokaryotic membrane
The mitochondrial unfolded protein response (UPR mt) is a cellular stress response related to the mitochondria. The UPR mt results from unfolded or misfolded proteins in mitochondria beyond the capacity of chaperone proteins to handle them. [1] The UPR mt can occur either in the mitochondrial matrix or in the mitochondrial inner membrane. [1]
The mitochondrial free radical ... electrons can leak and react with ... Mitochondrial stress occurs when the proton gradient across the inner mitochondrial ...