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・ Malataverne
・ Malate Catholic School
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・ Malate dehydrogenase (disambiguation)
・ Malate dehydrogenase (NAD(P)+)
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Malate-aspartate shuttle
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・ Malate—CoA ligase


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Malate-aspartate shuttle : ウィキペディア英語版
Malate-aspartate shuttle

The malate-aspartate shuttle (sometimes also the malate shuttle) is a biochemical system for translocating electrons produced during glycolysis across the semipermeable inner membrane of the mitochondrion for oxidative phosphorylation in eukaryotes. These electrons enter the electron transport chain of the mitochondria via reduction equivalents to generate ATP. The shuttle system is required because the mitochondrial inner membrane is impermeable to NADH, the primary reducing equivalent of the electron transport chain. To circumvent this, malate carries the reducing equivalents across the membrane.
==Components==
The shuttle consists of four protein parts:
*malate dehydrogenase in the mitochondrial matrix and intermembrane space.
*aspartate aminotransferase in the mitochondrial matrix and intermembrane space.
*malate-alpha-ketoglutarate antiporter in the inner membrane.〔http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2572303/〕
*glutamate-aspartate antiporter in the inner membrane.〔http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2572303/〕

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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