Biology:L-galactose 1-dehydrogenase

From HandWiki
L-galactose 1-dehydrogenase
Identifiers
EC number1.1.1.316
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum

L-galactose 1-dehydrogenase (EC 1.1.1.316, L-GalDH, L-galactose dehydrogenase) is an enzyme with the systematic name L-galactose:NAD+ 1-oxidoreductase.[1][2][3][4] This enzyme catalyses the following chemical reaction:

L-galactose + NAD+ [math]\displaystyle{ \rightleftharpoons }[/math] L-galactono-1,4-lactone + NADH + H+

The enzyme catalyses a step in the ascorbate biosynthesis in higher plants.

References

  1. "Feedback inhibition of spinach L-galactose dehydrogenase by L-ascorbate". Plant & Cell Physiology 45 (9): 1271–9. September 2004. doi:10.1093/pcp/pch152. PMID 15509850. 
  2. "Antisense suppression of l-galactose dehydrogenase in Arabidopsis thaliana provides evidence for its role in ascorbate synthesis and reveals light modulated l-galactose synthesis". The Plant Journal 30 (5): 541–53. June 2002. doi:10.1046/j.1365-313x.2002.01315.x. PMID 12047629. 
  3. "The biosynthetic pathway of vitamin C in higher plants". Nature 393 (6683): 365–9. May 1998. doi:10.1038/30728. PMID 9620799. 
  4. "Environmental stresses induce health-promoting phytochemicals in lettuce". Plant Physiology and Biochemistry 47 (7): 578–83. July 2009. doi:10.1016/j.plaphy.2009.02.008. PMID 19297184. 

External links