Information on EC - alcohol dehydrogenase (azurin)

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IUBMB Comments
A soluble, periplasmic PQQ-containing quinohemoprotein. Also contains a single heme c. Occurs in Comamonas and Pseudomonas. Does not require an amine activator. Oxidizes a wide range of primary and secondary alcohols, and also aldehydes and large substrates such as sterols; methanol is not a substrate. Usually assayed with phenazine methosulfate or ferricyanide. Like all other quinoprotein alcohol dehydrogenases it has an 8-bladed 'propeller' structure, a calcium ion bound to the PQQ in the active site and an unusual disulfide ring structure in close proximity to the PQQ.
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The enzyme appears in viruses and cellular organisms
ADH IIB, ADH IIG, QH-ADH, quinohaemoprotein alcohol dehydrogenase, quinohemoprotein alcohol dehydrogenase, more
a primary alcohol + azurin = an aldehyde + reduced azurin
show the reaction diagram
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