Pyruvate dehydrogenase (quinone)

Pyruvate dehydrogenase (quinone)
Identifiers
EC no.1.2.5.1
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
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NCBIproteins

Pyruvate dehydrogenase (quinone) (EC 1.2.5.1, pyruvate dehydrogenase, pyruvic dehydrogenase, pyruvic (cytochrome b1) dehydrogenase, pyruvate:ubiquinone-8-oxidoreductase, pyruvate oxidase (ambiguous)) is an enzyme with systematic name pyruvate:ubiquinone oxidoreductase. This enzyme catalyses the following chemical reaction

 
 
H2O
CO2
H2O
CO2
 
 

The enzyme converts pyruvic acid to acetic acid by oxidative decarboxylation using ubiquinone as its cofactor. This bacterial enzyme is a flavoprotein located on the inner surface of the cytoplasmic membrane.