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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

Reaction

L-galactono-1,4-lactone
+
2 ferricytochrome c
=
L-ascorbate
 + 2 ferrocytochrome c + 2 H+

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 Oxidoreductases
         1.3 Acting on the CH-CH group of donors
             1.3.2 With a cytochrome as acceptor
                1.3.2.3 L-galactonolactone dehydrogenase

Specific Activity

Specific Activity on EC 1.3.2.3 - L-galactonolactone dehydrogenase

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SPECIFIC ACTIVITY [µmol/min/mg]
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
0.022
-
in the presence of methyl viologen
0.0245 - 0.0513
-
root mitochondria of transformed transgenic tobacco lines, pH not specified in the publication, temperature not specified in the publication
0.0399
-
mitochondrial inner membrane fraction
3
extract of yeast expressing the recombinant enzyme
37000
-
purified enzyme
44.5
-
mitochondria
7
-
cell extract, at pH 8.8
76
-
after purification, at pH 8.8
additional information
-
Arabidopsis ppr40-1 mutant which presents a strongly reduced electron flow through complex III, shows a higher activity of GLDH