1.3.2.3: L-galactonolactone dehydrogenase
This is an abbreviated version!
For detailed information about L-galactonolactone dehydrogenase, go to the full flat file.
Word Map on EC 1.3.2.3
-
1.3.2.3
-
asa
-
l-galactose
-
dehydroascorbate
-
monodehydroascorbate
-
l-galactose-1-phosphate
-
l-gulono-1,4-lactone
-
galdh
-
gdp-d-mannose
-
mdhar
-
gdp-l-galactose
-
aldonolactone
-
d-galacturonate
-
ascorbate-glutathione
-
smirnoff-wheeler
- 1.3.2.3
- asa
- l-galactose
- dehydroascorbate
- monodehydroascorbate
-
l-galactose-1-phosphate
- l-gulono-1,4-lactone
- galdh
- gdp-d-mannose
- mdhar
- gdp-l-galactose
- aldonolactone
- d-galacturonate
-
ascorbate-glutathione
-
smirnoff-wheeler
Reaction
Synonyms
dehydrogenase, galactonolactone, ferricytochrome c oxidoreductase, galactono-1,4-lactone dehydrogenase, galactonolactone dehydrogenase, GALDH, GalL dehydrogenase, GalLDH, GLDase, GLDH, GLDH-A1, GLDH-B1, GLDH-D1, GLDH1, GLDHase, L-galactone-1,4-lactone dehydrogenase, L-galactono-1, 4-lactone dehydrogenase, L-galactono-1,4-lactone dehydrogenase, L-galactono-gamma-lactone dehydrogenase, L-GalLDH, L-GalLDH1, L-GalLDH2, LsL-GalLDH, RrGalLDH
ECTree
1.3.2.3 L-galactonolactone dehydrogenaseAdvanced search results
results (
results (Substrates Products
Substrates Products on EC 1.3.2.3 - L-galactonolactone dehydrogenase
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SUBSTRATE 
PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate)
(Substrate)
LITERATURE
(Substrate)
(Substrate)
COMMENTARY
(Product)
(Product)
LITERATURE
(Product)
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
r=reversible
ir=irreversible
?=not specified
L-galactono-1,4-lactone + 1,4-benzoquinone
L-ascorbate + reduced 1,4-benzoquinone
-
-
-
-
?
L-galactono-1,4-lactone + 4 ferricytochrome c
L-dehydroascorbate + 4 ferrocytochrome c + 4 H+
L-galactono-1,4-lactone + phenazine methosulfate
L-ascorbate + reduced phenazine methosulfate
-
-
-
-
?
L-gulono-1,4-lactone + ferricytochrome c
L-ascorbate + ferrocytochrome c
-
-
-
-
?
L-mannono-gamma-lactone + ferricytochrome c
D-ascorbate + ferricytochrome c
-
18% activity of that with L-galactono-gamma-lactone
-
-
?
L-galactono-1,4-lactone + 2 ferricytochrome c
L-ascorbate + 2 ferrocytochrome c + 2 H+
-
-
-
-
?
L-galactono-1,4-lactone + 2 ferricytochrome c
L-ascorbate + 2 ferrocytochrome c + 2 H+
-
final enzyme in synthesis of ascorbic acid
-
-
?
L-galactono-1,4-lactone + 2 ferricytochrome c
L-ascorbate + 2 ferrocytochrome c + 2 H+
-
terminal step in L-ascorbic acid biosynthesis
-
?
L-galactono-1,4-lactone + 2 ferricytochrome c
L-ascorbate + 2 ferrocytochrome c + 2 H+
terminal step in L-ascorbic acid biosynthesis
-
?
L-galactono-1,4-lactone + 2 ferricytochrome c
L-ascorbate + 2 ferrocytochrome c + 2 H+
-
-
-
?
L-galactono-1,4-lactone + 2 ferricytochrome c
L-ascorbate + 2 ferrocytochrome c + 2 H+
-
terminal step in L-ascorbic acid biosynthesis
-
?
L-galactono-1,4-lactone + 2 ferricytochrome c
L-ascorbate + 2 ferrocytochrome c + 2 H+
-
-
-
-
?
L-galactono-1,4-lactone + 2 ferricytochrome c
L-ascorbate + 2 ferrocytochrome c + 2 H+
-
-
-
?
L-galactono-1,4-lactone + 2 ferricytochrome c
L-ascorbate + 2 ferrocytochrome c + 2 H+
-
ascorbic acid biosynthesis precursors are L-galactono-gamma-lactone and L-gulono-gamma-lactone
-
?
L-galactono-1,4-lactone + 2 ferricytochrome c
L-ascorbate + 2 ferrocytochrome c + 2 H+
-
activity is inducible by addition of D-glucose, D-galactose or L-gulono-gamma-lactone in vivo
-
?
L-galactono-1,4-lactone + 2 ferricytochrome c
L-ascorbate + 2 ferrocytochrome c + 2 H+
-
-
-
?
L-galactono-1,4-lactone + 2 ferricytochrome c
L-ascorbate + 2 ferrocytochrome c + 2 H+
-
terminal step in L-ascorbic acid biosynthesis
-
?
L-galactono-1,4-lactone + 4 ferricytochrome c
L-dehydroascorbate + 4 ferrocytochrome c + 4 H+
overall reaction
-
-
?
L-galactono-1,4-lactone + 4 ferricytochrome c
L-dehydroascorbate + 4 ferrocytochrome c + 4 H+
overall reaction
-
-
?
L-galactono-1,4-lactone + 4 ferricytochrome c
L-dehydroascorbate + 4 ferrocytochrome c + 4 H+
overall reaction
-
-
?
L-galactono-1,4-lactone + 4 ferricytochrome c
L-dehydroascorbate + 4 ferrocytochrome c + 4 H+
overall reaction
-
-
?
L-galactono-1,4-lactone + 4 ferricytochrome c
L-dehydroascorbate + 4 ferrocytochrome c + 4 H+
overall reaction
-
-
?
L-galactono-1,4-lactone + 4 ferricytochrome c
L-dehydroascorbate + 4 ferrocytochrome c + 4 H+
overall reaction
-
-
?
L-galactono-1,4-lactone + cytochrome c
L-ascorbate + reduced cytochrome c
-
-
-
-
?
L-galactono-1,4-lactone + cytochrome c
L-ascorbate + reduced cytochrome c
-
-
-
-
?
L-galactono-1,4-lactone + cytochrome c
L-ascorbate + reduced cytochrome c
-
-
-
?
L-galactono-1,4-lactone + ferricytochrome c
L-ascorbate + ferrocytochrome c
-
-
-
-
?
L-galactono-1,4-lactone + ferricytochrome c
L-ascorbate + ferrocytochrome c
specific for cytochrome c as electron acceptor
-
?
L-galactono-1,4-lactone + ferricytochrome c
L-ascorbate + ferrocytochrome c
native and recombinant from yeast
-
?
L-galactono-1,4-lactone + ferricytochrome c
L-ascorbate + ferrocytochrome c
-
reduces only phenazine methosulfate and cytochrome c
-
?
L-galactono-1,4-lactone + ferricytochrome c
L-ascorbate + ferrocytochrome c
-
specific for L-galactono-gamma-lactone
-
?
L-galactono-1,4-lactone + ferricytochrome c
L-ascorbate + ferrocytochrome c
specific for L-galactono-gamma-lactone
-
?
L-galactono-1,4-lactone + ferricytochrome c
L-ascorbate + ferrocytochrome c
final enzyme in synthesis of ascorbic acid, expression is regulated by light
-
-
?
L-galactono-1,4-lactone + ferricytochrome c
L-ascorbate + ferrocytochrome c
-
-
-
-
?
L-galactono-1,4-lactone + ferricytochrome c
L-ascorbate + ferrocytochrome c
infiltration of the substrate through the fruit petiole at the small green and turning stage results in a 50% increase in total L-ascorbate content, but in no differences in enzyme activity and expression
-
-
?
L-galactono-1,4-lactone + ferricytochrome c
L-ascorbate + ferrocytochrome c
-
-
-
?
L-galactono-1,4-lactone + ferricytochrome c
L-ascorbate + ferrocytochrome c
-
specific for L-galactono-gamma-lactone
-
?
L-galactono-1,4-lactone + ferricytochrome c
L-ascorbate + ferrocytochrome c
-
-
-
-
?
L-galactono-1,4-lactone + ferricytochrome c
L-ascorbate + ferrocytochrome c
-
-
-
-
?
L-galactono-1,4-lactone + ferricytochrome c
L-ascorbate + ferrocytochrome c
-
final enzyme in synthesis of ascorbic acid
-
-
?
L-galactono-1,4-lactone + ferricytochrome c
L-ascorbate + ferrocytochrome c
-
-
-
?
L-galactono-1,4-lactone + ferricytochrome c
L-ascorbate + ferrocytochrome c
-
native and recombinant enzyme
-
?
L-galactono-1,4-lactone + ferricytochrome c
L-ascorbate + ferrocytochrome c
-
specific for L-galactono-gamma-lactone
-
?
L-galactono-1,4-lactone + ferricytochrome c
L-ascorbate + ferrocytochrome c
-
-
-
-
?
L-galactono-1,4-lactone + ferricytochrome c
L-ascorbate + ferrocytochrome c
-
specific for cytochrome c as electron acceptor
-
?
L-galactono-1,4-lactone + ferricytochrome c
L-ascorbate + ferrocytochrome c
-
final enzyme in synthesis of ascorbic acid
-
-
?
L-galactono-1,4-lactone + ferricytochrome c
L-ascorbate + ferrocytochrome c
-
-
-
-
?
L-galactono-1,4-lactone + ferricytochrome c
L-ascorbate + ferrocytochrome c
-
final enzyme in synthesis of ascorbic acid. L-Galactono-gamma-lactone dehydrogenase and vitamin C content in fresh-cut potatoes stored under controlled atmospheres: fresh-cutting provoces an increase in enzyme activity in potato strips in all atmospheres tested. Highest induction, 15.5fold, is observed in strips stored in air
-
-
?
L-galactono-1,4-lactone + ferricytochrome c
L-ascorbate + ferrocytochrome c
-
the pI 4.3 enzyme form is much more effective than that of potato tuber pI 5 enzyme to catalyze the synthesis of ascorbic acid
-
-
?
L-galactono-1,4-lactone + ferricytochrome c
L-ascorbate + ferrocytochrome c
-
reduces only phenazine methosulfate and cytochrome c
-
?
L-galactono-1,4-lactone + ferricytochrome c
L-ascorbate + ferrocytochrome c
-
specific for L-galactono-gamma-lactone
-
?
L-galactono-1,4-lactone + ferricytochrome c
L-ascorbate + ferrocytochrome c
-
-
-
-
?
L-galactono-1,4-lactone + ferricytochrome c
L-ascorbate + ferrocytochrome c + H+
-
-
-
-
?
L-galactono-1,4-lactone + ferricytochrome c
L-ascorbate + ferrocytochrome c + H+
-
-
-
?
L-galactono-1,4-lactone + ferricytochrome c
L-ascorbate + ferrocytochrome c + H+
-
-
-
-
r
L-gulono-gamma-lactone + ferricytochrome
D-ascorbate + ferricytochrome c
-
very low activity
-
-
?
L-gulono-gamma-lactone + ferricytochrome
D-ascorbate + ferricytochrome c
-
recombinant enzyme: 7% activity of the activity with L-galactono-gamma-lactone
-
-
?
L-gulono-gamma-lactone + ferricytochrome
D-ascorbate + ferricytochrome c
-
23% activity of that with L-galactono-gamma-lactone
-
-
?
additional information
?
-
-
D-galactono-1,4-lactone, D-gulono-1,4-lactone, L-mannono-1,4-lactone, and D-galacturonic acid are no substrates, molecular oxygen can not serve as efficient electron acceptor for the mutant enzymes
-
-
?
additional information
?
-
-
a kinetic and thermodynamic study of the GALDH-cytochrome c interaction and electron-transfer reactions by using laser-flash photolysis and stopped-flow kinetic analysis as well as isothermal titration calorimetry (ITC) and NMR spectroscopy are performed. Results show a transient, highly dynamic GALDH- cytochrome c interaction, similar for all partner redox states
-
-
?
additional information
?
-
-
incubation of leaf discs in a L-galactonolactone solution leads to a rapid 2 to 3fold increase in the L-ascorbate content in both GLDH-transformed and non-transformed plants in the same manner
-
-
?
