Dichloroarcyriaflavin A synthase
class of enzymes
Dichloroarcyriaflavin A synthase (EC 1.13.12.17) is an enzyme with systematic name dichlorochromopyrrolate,NADH:oxygen 2,5-oxidoreductase (dichloroarcyriaflavin A-forming). This enzyme catalyses the following overall chemical reaction:
The reaction proceeds in two stages. The first protein component, called RebP, is an oxidase which contains heme and uses oxygen and nicotinamide adenine dinucleotide (NADH) to form the new aromatic bond between the indole components, making a six-membered ring. The RebP component then acts with a flavin-dependent partner called RebC to remove the two carboxylic acid groups by oxidative decarboxylation.
The product of the reaction is an indole alkaloid and gives rebeccamycin in a subsequent reaction. The naming of the various proteins involved in its biosynthesis as "RebC" etc describe the overall pathway.
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This entry incorporates text from “Dichloroarcyriaflavin A synthase” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.