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EC 1.1.5.2 Details
EC number
1.1.5.2
Accepted name
glucose 1-dehydrogenase (PQQ, quinone)
Reaction
D-glucose + ubiquinone = D-glucono-1,5-lactone + ubiquinol
Other name(s)
quinoprotein glucose dehydrogenase, membrane-bound glucose dehydrogenase, mGDH, glucose dehydrogenase (PQQ-dependent), glucose dehydrogenase (pyrroloquinoline-quinone), quinoprotein D-glucose dehydrogenase
Systematic name
D-glucose:ubiquinone oxidoreductase
CAS registry number
81669-60-5
Comment
Integral membrane protein containing PQQ as prosthetic group. It also contains bound ubiquinone and Mg2+ or Ca2+. Electron acceptor is membrane ubiquinone but usually assayed with phenazine methosulfate. Like in all other quinoprotein alcohol dehydrogenases the catalytic domain has an 8-bladed propeller structure. It occurs in a wide range of bacteria. Catalyses a direct oxidation of the pyranose form of D-glucose to the lactone and thence to D-gluconate in the periplasm. Oxidizes other monosaccharides including the pyranose forms of pentoses.
History
created 1982 as EC 1.1.99.17, transferred 2003 to EC 1.1.5.2, modified 2010
EC Tree
1.1.99.15 created 1978, deleted 1980
1.1.99.17 created 1982, deleted 2003