D-galactose 1-dehydrogenase

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d-galactose 1-dehydrogenase
Identifiers
EC no. 1.1.1.48
CAS no. 9028-54-0
Databases
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum
Gene Ontology AmiGO / QuickGO
Search
PMC articles
PubMed articles
NCBI proteins

In enzymology, a d-galactose 1-dehydrogenase (EC 1.1.1.48) is an enzyme that catalyzes the chemical reaction

+ NAD+
 
 
 
H+
Biochem reaction arrow reversible NYYN horiz med.svg
 
H+
 
+ NADH
 

The two substrates of this enzyme are D-galactose and oxidised nicotinamide adenine dinucleotide (NAD+). Its products are D-galactono-1,4-lactone, reduced NADH, and a proton. [1] [2] [3]

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is d-galactose:NAD+ 1-oxidoreductase. Other names in common use include d-galactose dehydrogenase, beta-galactose dehydrogenase, and NAD+-dependent d-galactose dehydrogenase. This enzyme participates in galactose metabolism.

References

  1. Enzyme 1.1.1.48 at KEGG Pathway Database.
  2. De Ley J, Doudoroff M (1957). "The metabolism of D-galactose in Pseudomonas saccharophila". J. Biol. Chem. 227 (2): 745–57. doi: 10.1016/S0021-9258(18)70755-2 . PMID   13462997.
  3. Hu, ASL; Cline AL (1964). "The regulation of some sugar dehydrogenases in a pseudomonad". Biochim. Biophys. Acta. 93 (2): 237–245. doi:10.1016/0304-4165(64)90371-x. PMID   14251301.