Reaction: (S)-Malate + NAD+ <=> Oxaloacetate + NADH + H+
- in pathway: Citric acid cycle (TCA cycle)
Mitochondrial malate dehydrogenase catalyzes the reversible reaction of malate and NAD+ to form oxaloacetate (OA) and NADH + H+ (Luo et al. 2006). This reaction is highly endergonic but is pulled in the direction annotated here when the TCA cycle is operating. Unpublished crystallographic data indicate that the protein is a dimer (PDB 3E04).
Reaction - small molecule participants:
H+ [mitochondrial matrix]
NADH [mitochondrial matrix]
OA [mitochondrial matrix]
MAL [mitochondrial matrix]
NAD+ [mitochondrial matrix]
Reactome.org reaction link: R-HSA-70979
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Reaction input - small molecules:
(S)-malate(2-)
NAD(1-)
Reaction output - small molecules:
hydron
NADH(2-)
oxaloacetate(2-)
Reactome.org link: R-HSA-70979