Reaction: galactitol + NAD+ = D-tagatose + NADH + H+
For diagram of reaction click here.
Other name(s): dulcitol dehydrogenase
Systematic name: galactitol:NAD+ 2-oxidoreductase
Comments: Also converts other alditols containing an L-threo-configuration adjacent to a primary alcohol group into the corresponding sugars.
Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number: 9028-23-3
References:
1. Shaw, D.R.D. Polyol dehydrogenases 3. Galactitol dehydrogenase and D-iditol dehydrogenase. Biochem. J. 64 (1956) 394-405.