1.1.99.1: choline dehydrogenase
This is an abbreviated version!
For detailed information about choline dehydrogenase, go to the full flat file.
Reaction
Synonyms
Cdh, CHD, CHDH, ChoDH, choline dehydrogenase, choline oxidase, choline-cytochrome c reductase, choline:(acceptor) oxidoreductase, dehydrogenase, choline, oxidase, choline
ECTree
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Systematic Name
Systematic Name on EC 1.1.99.1 - choline dehydrogenase
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choline:acceptor 1-oxidoreductase
A quinoprotein. In many bacteria, plants and animals, the osmoprotectant betaine is synthesized using different enzymes to catalyse the conversion of (1) choline into betaine aldehyde and (2) betaine aldehyde into betaine. In plants, the first reaction is catalysed by EC 1.14.15.7, choline monooxygenase, whereas in animals and many bacteria, it is catalysed by either membrane-bound choline dehydrogenase (EC 1.1.99.1) or soluble choline oxidase (EC 1.1.3.17) [4]. The enzyme involved in the second step, EC 1.2.1.8, betaine-aldehyde dehydrogenase, appears to be the same in plants, animals and bacteria.