Description
In enzymology, an uronate dehydrogenase (EC 1.1.1.203) is an enzyme that catalyzes the chemical reaction: D-galacturonate + NAD+ + H2O → D-galactarate + NADH + H+. The 3 substrates of this enzyme are D-galacturonate, NAD+, and H2O, whereas its 3 products are D-galactarate, NADH, and H+. This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with NAD+ or NADP+ as acceptor.
Abbr
Uronate dehydrogenase, Recombinant (A. tumefaciens)
Species
Agrobacterium tumefaciens
Form
3.2 M ammonium sulphate
Enzyme Commission Number
EC 1.1.1.203
Molecular Weight
31.14 kDa
Purity
>95% as judged by SDS-PAGE
Unit Definition
One Unit of uronate dehydrogenase was defined as the amount enzyme required to produce 1 µmole of NADH from NAD+, in a reaction mixture containing 200mM TrisHCl buffer, pH 8.0, 10 mM D-glucuronic acid and 2.1 mM NAD+, at 25°C.
Optimum temperature
37 °C
Storage
Uronate dehydrogenase should be stored at 4 °C or and will remain stable up to 3 years if stored as specified.
Synonyms
uronate:NAD+ 1-oxidoreductase; uronate: NAD-oxidoreductase; uronic acid dehydrogenase; EC 1.1.1.203