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Literature summary extracted from

  • Xu, Y.; Zhu, X.; Chen, Y.; Gong, Y.; Liu, L.
    Expression profiling of genes involved in ascorbate biosynthesis and recycling during fleshy root development in radish (2013), Plant Physiol. Biochem., 70, 269-277 .
    View publication on PubMed

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
1.1.1.203 D-galacturonate + NADPH + H+ Raphanus sativus
-
 L-galactonate + NADP+
-
 r

Organism

EC Number Organism UniProt Comment Textmining
1.1.1.203 Raphanus sativus
-
-
-

Source Tissue

EC Number Source Tissue Comment Organism Textmining
1.1.1.203 root skin and flesh. In the skin, the expression of L-galacturonate acid dehydrogenase is correlated with ascorbate levels Raphanus sativus
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.1.1.203 D-galacturonate + NADP+
-
 Raphanus sativus L-galactono-1,4-lactone + NADPH + H+
-
 r
1.1.1.203 D-galacturonate + NADPH + H+
-
 Raphanus sativus L-galactonate + NADP+
-
 r

Synonyms

EC Number Synonyms Comment Organism
1.1.1.203 galacturonate acid reductase
-
 Raphanus sativus
1.1.1.203 GalUR
-
 Raphanus sativus

Cofactor

EC Number Cofactor Comment Organism Structure
1.1.1.203 NADP+
-
 Raphanus sativus
1.1.1.203 NADPH
-
 Raphanus sativus

General Information

EC Number General Information Comment Organism
1.1.1.203 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
1.1.1.203 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