| Entry |
|
| Name |
Ascorbate and aldarate metabolism
|
| Class |
Metabolism; Carbohydrate metabolism
 |
| Pathway map |
| Ascorbate and aldarate metabolism |

  |
| Module |
| Ascorbate biosynthesis, plants, glucose-6P => ascorbate [PATH: ko00053] | | Ascorbate biosynthesis, animals, glucose-1P => ascorbate [PATH: ko00053] | | PTS system, ascorbate-specific II component [PATH: ko00053] | | Ascorbate degradation, ascorbate => D-xylulose-5P [PATH: ko00053] |
|
| Other DBs |
|
| Orthology |
| UDPglucose 6-dehydrogenase [EC: 1.1.1.22] | | UDP-sugar pyrophosphorylase [EC: 2.7.7.64] | | | | | | | | | | L-gulonolactone oxidase [EC: 1.1.3.8] | | GDP-D-mannose 3', 5'-epimerase [EC:5.1.3.- 5.1.3.18] | | GDP-L-galactose phosphorylase [EC: 2.7.7.69] | | inositol-phosphate phosphatase / L-galactose 1-phosphate phosphatase [EC:3.1.3.- 3.1.3.25] | | D-threo-aldose 1-dehydrogenase [EC: 1.1.1.122] | | L-galactono-1,4-lactone dehydrogenase [EC: 1.3.2.3] | | L-galactonolactone oxidase [EC: 1.3.3.12] | | PTS system, ascorbate-specific IIA component [EC: 2.7.1.69] | | PTS system, ascorbate-specific IIB component [EC: 2.7.1.69] | | PTS system, ascorbate-specific IIC component | | L-ascorbate 6-phosphate lactonase [EC:3.1.1.-] | | 3-dehydro-L-gulonate-6-phosphate decarboxylase [EC: 4.1.1.85] | | L-ribulose-5-phosphate 3-epimerase [EC: 5.1.3.22] | | L-ribulose-5-phosphate 4-epimerase [EC: 5.1.3.4] | | monodehydroascorbate reductase (NADH) [EC: 1.6.5.4] | | | | | | 3-dehydro-L-gulonate 2-dehydrogenase [EC: 1.1.1.130] | | | | aldehyde dehydrogenase (NAD+) [EC: 1.2.1.3] | | | | | | | | 2-dehydro-3-deoxyglucarate aldolase [EC: 4.1.2.20] | | L-arabinose 1- dehydrogenase [EC: 1.1.1.46] | | | | | | 2-keto-3-deoxy-L-arabinonate dehydratase [EC: 4.2.1.43] | | alpha-ketoglutaric semialdehyde dehydrogenase [EC: 1.2.1.26] | | 5-dehydro-4-deoxyglucarate dehydratase [EC: 4.2.1.41] | | |
|
| Compound |
| Pyruvate | | 2-Oxoglutarate | | UDP-glucose | | Ascorbate | | GDP-mannose | | myo-Inositol | | UDP-glucuronate | | D-Glucuronate | | D-Xylulose 5-phosphate | | L-Arabinose | | D-Galacturonate | | 2,5-Dioxopentanoate | | L-Arabinonate | | 3-Dehydro-L-gulonate | | 5-Dehydro-4-deoxy-D-glucarate | | 2-Dehydro-3-deoxy-L-arabinonate | | L-Gulonate | | D-Glucarate | | D-Galactarate | | L-Gulono-1,4-lactone | | Monodehydroascorbate | | L-Ribulose 5-phosphate | | L-Arabinono-1,4-lactone | | L-Galactono-1,4-lactone | | 2-Hydroxy-3-oxopropanoate | | Threonate | | L-Galactose | | GDP-L-galactose | | D-Glucuronolactone | | 3-Dehydro-L-threonate | | L-xylo-Hexulonolactone | | L-Xylulose 5-phosphate | | 2-Dehydro-3-deoxy-D-xylonate | | 2-Dehydro-3-deoxy-D-glucarate | | (4R,5S)-4,5,6-Trihydroxy-2,3-dioxohexanoate | | D-Glucuronate 1-phosphate | | 5-Hydroxy-2,4-dioxopentanoate | | L-Xylonate | | L-Lyxonate | | Dehydroascorbate | | 3-Dehydro-L-gulonate 6-phosphate | | L-Gulose | | L-Gulose 1-phosphate | | GDP-L-gulose | | L-Galactose 1-phosphate | | L-Galactonate | | L-Ascorbate 6-phosphate |
|
| Reference |
|
| Authors |
Linster CL, Van Schaftingen E. |
| Title |
Vitamin C. Biosynthesis, recycling and degradation in mammals. |
| Journal |
FEBS J 274:1-22 (2007) |
| Reference |
|
| Authors |
Valpuesta V, Botella MA. |
| Title |
Biosynthesis of L-ascorbic acid in plants: new pathways for an old antioxidant. |
| Journal |
Trends Plant Sci 9:573-7 (2004) |
| Reference |
|
| Authors |
Davey MW, Gilot C, Persiau G, Ostergaard J, Han Y, Bauw GC, Van Montagu MC. |
| Title |
Ascorbate biosynthesis in Arabidopsis cell suspension culture. |
| Journal |
Plant Physiol 121:535-43 (1999) |
| Reference |
|
| Authors |
Conklin PL, Gatzek S, Wheeler GL, Dowdle J, Raymond MJ, Rolinski S, Isupov M, Littlechild JA, Smirnoff N. |
| Title |
Arabidopsis thaliana VTC4 encodes L-galactose-1-P phosphatase, a plant ascorbic acid biosynthetic enzyme. |
| Journal |
J Biol Chem 281:15662-70 (2006) |
| Reference |
|
| Authors |
Linster CL, Gomez TA, Christensen KC, Adler LN, Young BD, Brenner C, Clarke SG. |
| Title |
Arabidopsis VTC2 Encodes a GDP-L-Galactose Phosphorylase, the Last Unknown Enzyme in the Smirnoff-Wheeler Pathway to Ascorbic Acid in Plants. |
| Journal |
J Biol Chem 282:18879-85 (2007) |
| Reference |
|
| Authors |
Campos E, Baldoma L, Aguilar J, Badia J. |
| Title |
Regulation of expression of the divergent ulaG and ulaABCDEF operons involved in LaAscorbate dissimilation in Escherichia coli. |
| Journal |
J Bacteriol 186:1720-8 (2004) |
| Reference |
|
| Authors |
Zhang Z, Aboulwafa M, Smith MH, Saier MH Jr. |
| Title |
The ascorbate transporter of Escherichia coli. |
| Journal |
J Bacteriol 185:2243-50 (2003) |