malate dehydrogenase (quinone) | |||||||||
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Identifiers | |||||||||
EC no. | 1.1.5.4 | ||||||||
CAS no. | 71822-24-7 | ||||||||
Databases | |||||||||
IntEnz | IntEnz view | ||||||||
BRENDA | BRENDA entry | ||||||||
ExPASy | NiceZyme view | ||||||||
KEGG | KEGG entry | ||||||||
MetaCyc | metabolic pathway | ||||||||
PRIAM | profile | ||||||||
PDB structures | RCSB PDB PDBe PDBsum | ||||||||
Gene Ontology | AmiGO / QuickGO | ||||||||
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In enzymology, a malate dehydrogenase (quinone) (EC 1.1.5.4), formerly malate dehydrogenase (acceptor) (EC 1.1.99.16), is an enzyme that catalyzes the chemical reaction
(S)-malate + a quinone ⇌ {\displaystyle \rightleftharpoons } oxaloacetate + reduced quinoneThus, the two substrates of this enzyme are (S)-malate and a quinone, whereas its two products are oxaloacetate and reduced quinone.
This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with a quinone as acceptor. The systematic name of this enzyme class is (S)-malate:quinone oxidoreductase. Other names in common use include FAD-dependent malate-vitamin K reductase, malate-vitamin K reductase, and (S)-malate:(quinone) oxidoreductase. This enzyme participates in pyruvate metabolism. It employs one cofactor, FAD.
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