EC Number |
Natural Substrates |
---|
5.1.3.18 | GDP-alpha-D-mannose |
GDP-D-mannose undergoes double epimerization catalyzed by GDP-D-mannose-3',5'-epimerase to form GDP-L-galactose |
5.1.3.18 | GDP-D-mannose |
- |
5.1.3.18 | GDP-D-mannose |
the enzyme catalyzes a reversible epimerization that precedes the committed step in the biosynthesis of vitamin C, resulting in the hydrolysis of the highly energetic glycosyl-diphosphoryl linkage. The plant enzyme undergoes a complex regulation and could control the carbonflux into the vitamin C pathway in response to the redox state of thecell, stress conditions, and GDP-sugar demand for the cell wall glycoprotein biosynthesis |
5.1.3.18 | GDP-D-mannose |
key enzyme in biosynthesis of vitamin C in plants |
5.1.3.18 | more |
key enzyme of the plant vitamin C pathway |
5.1.3.18 | more |
methyl jasmonate stimulates the de novo biosynthesis of vitamin C in plant cell suspensions. This stimulation coincides with enhanced transcription of GDP-mannose 3'',5''-epimerase |