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Difference between revisions of "Glycerophosphate shuttle"

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{{MitoPedia
{{MitoPedia
|abbr=Gp shuttle
|abbr=Gp shuttle
|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, mitochondrial glycerophosphate dehydrogenase oxidizes glycerophosphate back to dihydroxyacetone phosphate, a reaction not generating NADH but reducing a flavin prosthesic group. The reduced flavoprotein donates its reducing equivalents to the [[electron transfer system]] at the level of [[CoQ]].
|description=[[File:Gp-shuttle.jpg|left|200px|Gp]]
|info=[http://www.oroboros.at/?Gnaiger_2012_MitoPathways Gnaiger 2012 MitoPathways]
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]].
|type=Enzyme
|info=[[Gnaiger 2020 BEC MitoPathways]]
}}
{{MitoPedia concepts|type=Enzyme
}}
{{MitoPedia methods|type=Enzyme
}}
{{MitoPedia O2k and high-resolution respirometry|type=Enzyme
}}
}}
{{MitoPedia topics
{{MitoPedia topics
|mitopedia topic=Enzyme
|mitopedia topic=Enzyme
|type=Enzyme
}}
}}

Latest revision as of 19:37, 1 January 2021


high-resolution terminology - matching measurements at high-resolution


Glycerophosphate shuttle

Description

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 ET pathway level 3 control state.

Abbreviation: Gp shuttle

Reference: Gnaiger 2020 BEC MitoPathways


MitoPedia topics: Enzyme