Glycerophosphate shuttle: Difference between revisions
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|description=[[File:Gp-shuttle.jpg|left|200px|Gp]] | |description=[[File:Gp-shuttle.jpg|left|200px|Gp]] | ||
The '''glycerophosphate shuttle''' makes cytoplasmic NADH available for mitochondrial oxidative phosphorylation. Cytoplasmic NADH reacts with dihydroxyacetone phosphate catalyzed by cytoplasmic glycerophosphate dehydrogenase. On the outer face of the inner mitochondrial membrane, [[glycerophosphate dehydrogenase complex]] (mitochondrial glycerophosphate dehydrogenase) oxidizes glycerophosphate back to dihydroxyacetone phosphate, a reaction not generating NADH but reducing a flavin prosthesic group. The reduced flavoprotein transfers its reducing equivalents into the [[Q-junction]], thus representing a [[Electron-transfer-pathway state|ET pathway level 3 control state]]. | The '''glycerophosphate shuttle''' makes cytoplasmic NADH available for mitochondrial oxidative phosphorylation. Cytoplasmic NADH reacts with dihydroxyacetone phosphate catalyzed by cytoplasmic glycerophosphate dehydrogenase. On the outer face of the inner mitochondrial membrane, [[glycerophosphate dehydrogenase complex]] (mitochondrial glycerophosphate dehydrogenase) oxidizes glycerophosphate back to dihydroxyacetone phosphate, a reaction not generating NADH but reducing a flavin prosthesic group. The reduced flavoprotein transfers its reducing equivalents into the [[Q-junction]], thus representing a [[Electron-transfer-pathway state|ET pathway level 3 control state]]. | ||
|info=[[Gnaiger | |info=[[Gnaiger 2020 BEC MitoPathways]] | ||
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{{MitoPedia topics | {{MitoPedia topics | ||
|mitopedia topic=Enzyme | |mitopedia topic=Enzyme | ||
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Latest revision as of 19:37, 1 January 2021
Description
The glycerophosphate shuttle makes cytoplasmic NADH available for mitochondrial oxidative phosphorylation. Cytoplasmic NADH reacts with dihydroxyacetone phosphate catalyzed by cytoplasmic glycerophosphate dehydrogenase. On the outer face of the inner mitochondrial membrane, glycerophosphate dehydrogenase complex (mitochondrial glycerophosphate dehydrogenase) oxidizes glycerophosphate back to dihydroxyacetone phosphate, a reaction not generating NADH but reducing a flavin prosthesic group. The reduced flavoprotein transfers its reducing equivalents into the Q-junction, thus representing a ET pathway level 3 control state.
Abbreviation: Gp shuttle
Reference: Gnaiger 2020 BEC MitoPathways
MitoPedia topics:
Enzyme