Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
D-galacturonate + NADPH + H+ | Raphanus sativus | - |
L-galactonate + NADP+ | - |
r |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Raphanus sativus | - |
- |
- |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
root | skin and flesh. In the skin, the expression of L-galacturonate acid dehydrogenase is correlated with ascorbate levels | Raphanus sativus | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
D-galacturonate + NADP+ | - |
Raphanus sativus | L-galactono-1,4-lactone + NADPH + H+ | - |
r | |
D-galacturonate + NADPH + H+ | - |
Raphanus sativus | L-galactonate + NADP+ | - |
r |
Synonyms | Comment | Organism |
---|---|---|
galacturonate acid reductase | - |
Raphanus sativus |
GalUR | - |
Raphanus sativus |
Cofactor | Comment | Organism | Structure |
---|---|---|---|
NADP+ | - |
Raphanus sativus | |
NADPH | - |
Raphanus sativus |
General Information | Comment | Organism |
---|---|---|
metabolism | the enzyme is proposed to be part of the salvage pathway in ascorbate production as galacturonate acid reductase, GalUR, EC 1.1.1.203, converting D-galacturonate to L-galactono-1,4-lactone, ascorbate biosynthesis and recycling pathways in plants, overview | Raphanus sativus |
physiological function | ascorbate accumulation is affected mainly by biosynthesis rather than recycling in radish root, and the L-galactose pathway may be the major biosynthetic route of ascorbate, and moreover, the salvage pathway may also contribute to ascorbate accumulation. Ascorbate level regulation involves the D-galacturonate reductase and GDP-D-mannose diphosphorylase | Raphanus sativus |