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Galactose dehydrogenase from recombinant E. coli


Cat No.
NATE-1931
Description
In enzymology, a galactose 1-dehydrogenase (EC 1.1.1.48) is an enzyme that catalyzes the chemical reaction: D-galactose + NAD+ rightleftharpoons D-galactono-1,4-lactone + NADH + H+. Thus, the two substrates of this enzyme are D-galactose and NAD+, whereas its 3 products are D-galactono-1,4-lactone, 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. This enzyme participates in galactose metabolism.
Source
E. coli
Form
Ammonium sulphate suspension
Enzyme Commission Number
EC 1.1.1.48
Activity
more than 80 U/mg protein
CAS No.
9028-54-0
Molecular Weight
ca. 33,800
pH Stability
5.0 - 10.0
Unit Definition
One unit of activity is defined as the amount of GalDH that forms 1 μmol of NADH per minute at 30 °C.
Optimum pH
10.5
Thermal stability
No significant decrease in activity up to 50 °C with Ammonium sulphate and 40 °C without Ammonium sulphate.
Stability
Stable at 4 °C for at least one year
Storage
Store at 4 to 10 °C (Do not freeze)
Synonyms
D-galactose:NAD+ 1-oxidoreductase; D-galactose dehydrogenase; beta-galactose dehydrogenase; NAD+-dependent D-galactose dehydrogenase; galactose 1-dehydrogenase; EC 1.1.1.48; Galactose dehydrogenase
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Related Services
Related Protocols
ß-GALACTOSE_DEHYDROGENASE -Enzymatic Assay Protocol
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