| RM022 | Nucleotide sugar biosynthesis, type 1 |
| RM039 | Nucleotide sugar biosynthesis, type 3 |
| RM040 | Nucleotide sugar interconversion and sugar activation (reverse reaction) |
| RM041 | Inversion of the carbon chain |
| RC00195 | Oxidation |
| Ascorbate synthesis | ||||||||||||||||||
| Animals | ||||||||||||||||||
| Glucose | → | glucose 6-phosphate |
→ | RM022 | → | UDP-glucose |
RC00291 → |
→ |
→ |
D-glucuronate |
→ | RM041 | → | L-gulono-1,4-lactone |
RC00195 → |
ascorbate |
||
| Euglena | ||||||||||||||||||
| Glucose | → | glucose 6-phosphate |
→ | RM022 | → | UDP-glucose |
RC00291 → |
→ | RM040 | → | D-galacturonate |
→ | RM041 | → | L-galactono-1,4-lactone |
RC00195 → |
ascorbate |
|
| Plants | ||||||||||||||||||
fructose 6-phosphate |
→ | RM039 | → | GDP-mannose |
→ | RM040 | → | L-galactose |
RC00161 → |
L-galactono-1,4-lactone |
RC00195 → |
ascorbate |
||||||
| Fungi | ||||||||||||||||||
D-arabinose |
RC00187 → |
D-arabinono-1,4-lactone |
RC00195 → |
D-erythroascorbate |
||||||||||||||