4.2.1.140: gluconate/galactonate dehydratase
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For detailed information about gluconate/galactonate dehydratase, go to the full flat file.
Reaction
Synonyms
D-gluconate dehydratase, GNAD, Pto0485, Sso3198
ECTree
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Systematic Name
Systematic Name on EC 4.2.1.140 - gluconate/galactonate dehydratase
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D-gluconate/D-galactonate hydro-lyase
The enzyme is involved in glucose and galactose catabolism via the nonphosphorylative variant of the Entner-Doudoroff pathway in Picrophilus torridus [3] and via the branched variant of the Entner-Doudoroff pathway in Sulfolobus solfataricus [1,2]. In vitro it utilizes D-gluconate with 6-10 fold higher catalytic efficiency than D-galactonate [1,3]. It requires Mg2+ for activity [1,2]. cf. EC 4.2.1.6, galactonate dehydratase, and EC 4.2.1.39, gluconate dehydratase.