L-iditol 2-dehydrogenase

Last updated
L-iditol 2-dehydrogenase
1pl8.jpg
Sorbitol dehydrogenase tetramer, Human
Identifiers
EC no. 1.1.1.14
CAS no. 9028-21-1
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, a L-iditol 2-dehydrogenase (EC 1.1.1.14) is an enzyme that catalyzes the chemical reaction

Contents

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

The two substrates of this enzyme are L-iditol and oxidised nicotinamide adenine dinucleotide (NAD+). Its products are L-sorbose, reduced NADH, and a proton. [1]

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 L-iditol:NAD+ 2-oxidoreductase. Other names in common use include polyol dehydrogenase, sorbitol dehydrogenase, L-iditol:NAD+ 5-oxidoreductase, L-iditol (sorbitol) dehydrogenase, glucitol dehydrogenase, L-iditol:NAD+ oxidoreductase, NAD+-dependent sorbitol dehydrogenase, NAD+-dependent sorbitol dehydrogenase, and NAD+-sorbitol dehydrogenase. This enzyme participates in fructose and mannose metabolism. [2] [3] [4] [5]

Structural studies

As of late 2007, 4 structures have been solved for this class of enzymes, with PDB accession codes 1K2W, 1PL6, 1PL7, and 1PL8.

See also

References

  1. Enzyme 1.1.1.14 at KEGG Pathway Database.
  2. Leissing N, McGuinness ET (1978). "Rapid affinity purification and properties of rat liver sorbitol dehydrogenase". Biochim. Biophys. Acta. 524 (2): 254–61. doi:10.1016/0005-2744(78)90162-6. PMID   667078.
  3. Negm FB, Loescher WH (1979). "Detection and Characterization of Sorbitol Dehydrogenase from Apple Callus Tissue". Plant Physiol. 64 (1): 69–73. doi:10.1104/pp.64.1.69. PMC   543026 . PMID   16660917.
  4. O'Brien MM, Schofield PJ, Edwards MR (1983). "Polyol-pathway enzymes of human brain. Partial purification and properties of sorbitol dehydrogenase". Biochem. J. 211 (1): 81–90. doi:10.1042/bj2110081. PMC   1154331 . PMID   6870831.
  5. Burnell JN, Holmes RS (1983). "Purification and properties of sorbitol dehydrogenase from mouse liver". Int. J. Biochem. 15 (4): 507–11. doi:10.1016/0020-711X(83)90124-6. PMID   6852349.