Inositol 2-dehydrogenase

Last updated
inositol 2-dehydrogenase
Identifiers
EC no. 1.1.1.18
CAS no. 9028-25-5
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, an inositol 2-dehydrogenase (EC 1.1.1.18) 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 myo-inositol and oxidised nicotinamide adenine dinucleotide (NAD+). Its products are 2,4,6/3,5-pentahydroxycyclohexanone, reduced NADH, and a proton. [1] [2] [3] [4]

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 myo-inositol:NAD+ 2-oxidoreductase. Other names in common use include myo-inositol 2-dehydrogenase, myo-inositol:NAD+ oxidoreductase, inositol dehydrogenase, and myo-inositol dehydrogenase. This enzyme participates in inositol metabolism and inositol phosphate metabolism.

References

  1. Enzyme 1.1.1.18 at KEGG Pathway Database.
  2. Berman T, Magasanik B (1966). "The pathway of myo-inositol degradation in Aerobacter aerogenes Dehydrogenation and dehydration". J. Biol. Chem. 241 (4): 800–6. doi: 10.1016/S0021-9258(18)96836-5 . PMID   5905122.
  3. Larner J, Jackson WT, Graves DJ, Stamer JR (1956). "Inositol dehydrogenase from Aerobacter aerogenes". Arch. Biochem. Biophys. 60 (2): 352–63. doi:10.1016/0003-9861(56)90437-4. PMID   13292912.
  4. Vidal-Leiria M, van Uden N (1973). "Inositol dehydrogenase from the yeast Cryptococcus melibiosum". Biochim. Biophys. Acta. 293 (2): 295–303. doi:10.1016/0005-2744(73)90337-9. PMID   4351258.