Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
ATP + alpha-D-glucose 1-phosphate | Arabidopsis thaliana | different large subunit isoforms allow the enzyme to be efficiently regulated according to the metabolic situation and the starch necessities of a tissue. In source tissues, ADP-glucose diphosphorylase would be finely regulated by the 3-phosphoglycerate/phosphate ratio, whereas in sink tissues, the enzyme would be dependent on the availability of substrates for starch synthesis | diphosphate + ADP-glucose | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Arabidopsis thaliana | - |
- |
- |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
leaf | ApL1, ApL2 and ApL3 transcripts are localized in the mesophyll and vasular companion cells | Arabidopsis thaliana | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
ATP + alpha-D-glucose 1-phosphate | - |
Arabidopsis thaliana | diphosphate + ADP-glucose | - |
? | |
ATP + alpha-D-glucose 1-phosphate | different large subunit isoforms allow the enzyme to be efficiently regulated according to the metabolic situation and the starch necessities of a tissue. In source tissues, ADP-glucose diphosphorylase would be finely regulated by the 3-phosphoglycerate/phosphate ratio, whereas in sink tissues, the enzyme would be dependent on the availability of substrates for starch synthesis | Arabidopsis thaliana | diphosphate + ADP-glucose | - |
? |
Subunits | Comment | Organism |
---|---|---|
More | six Arabidopsis thaliana ADP-glucose pyrophosphorylase-encoding genes (two small subunits, ApS1 and ApS2, and four large subunits, ApL1ApL4) studied. Based on mRNA expression, ApS1 is the main small subunit or catalytic isoform responsible for ADP-glucose diphosphorylase activity in all tissues of the plant. Large subunits play a regulatory role. ApL1 is the main large subunit in source tissues, whereas ApL3 and, to a lesser extent, ApL4 are the main isoforms present in sink tissues | Arabidopsis thaliana |
Synonyms | Comment | Organism |
---|---|---|
ADP-glucose pyrophosphorylase | - |
Arabidopsis thaliana |