Sorbitol-6-phosphate 2-dehydrogenase

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sorbitol-6-phosphate 2-dehydrogenase
Identifiers
EC no. 1.1.1.140
CAS no. 37250-69-4
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
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PMC articles
PubMed articles
NCBI proteins

In enzymology, sorbitol-6-phosphate dehydrogenase (EC 1.1.1.140) is an enzyme that catalyzes the chemical reaction

+ NAD+
 
 
 
H+
Sorbitol-6-phosphate 2-dehydrogenase
 
H+
 
+ NADH
 

The two substrates of this enzyme are D-sorbitol 6-phosphate and oxidised nicotinamide adenine dinucleotide (NAD+). Its products are fructose 6-phosphate (shown in its open-chain form), 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-sorbitol-6-phosphate:NAD+ 2-oxidoreductase. Other names in common use include ketosephosphate reductase, ketosephosphate reductase, D-sorbitol 6-phosphate dehydrogenase, D-sorbitol-6-phosphate dehydrogenase, sorbitol-6-P-dehydrogenase, and D-glucitol-6-phosphate dehydrogenase. This enzyme participates in fructose and mannose metabolism.

References

  1. Enzyme 1.1.1.140 at KEGG Pathway Database.
  2. Du Toit PJ, Kotze JP (1970). "The isolation and characterization of sorbitol-6-phosphate dehydrogenase from Clostridium pasteurianum". Biochim. Biophys. Acta. 206 (3): 333–42. doi:10.1016/0005-2744(70)90150-6. PMID   4318899.
  3. Liss M, Horwitz SB, Kaplan NO (1962). "D-Mannitol 1-phosphate dehydrogenase and D-sorbitol 6-phosphate dehydrogenase in Aerobacter aerogenes". J. Biol. Chem. 237 (4): 1342–50. doi: 10.1016/S0021-9258(18)60332-1 . PMID   14465816.