Species: Azotobacter vinelandii
Molecular Weight of Polypeptide: 74 kD (experimental) [Wong94 ]
pI: 6.15 [Wong94]
|Cellular Component:||GO:0005829 - cytosol [Wong94]|
Enzymatic reaction of: galactose dehydrogenase
Synonyms: galactose 1-dehydrogenase, GalDH
EC Number: 188.8.131.52
The reaction direction shown, that is, A + B ↔ C + D versus C + D ↔ A + B, is in accordance with the Enzyme Commission system.
The reaction is favored in the direction shown.
In Pathways: galactose degradation II
Galactose dehydrogenase was induced by growth of cells on galactose. The reaction was highly specific for NAD+. The partially purified enzyme preparation also oxidized L-arabinose and D-fucose. L-Arabinose was a better substrate than D-galactose, and it was suggested that the L-arabinose dehydrogenase activity was an integral part of galactose dehydrogenase. The following substrates were not oxidized: D-glucose, D-fructose, D-mannose, D-ribose, and 1-deoxy-D-galactose [Wong94].
pH(opt): 9.0 [Wong94]
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