ENZYME entry: EC 2.7.9.5
| Accepted Name |
|---|
| Phosphoglucan, water dikinase.
|
| Reaction catalysed |
|---|
| ATP + (phospho-alpha-glucan) + H(2)O <=> AMP + O-phospho-(phospho-alpha-glucan) + phosphate |
| Comment(s) |
|---|
- The enzyme phosphorylates granular starch that has previously been
phosphorylated by EC 2.7.9.4; there is no activity with
unphosphorylated glucans.
- It transfers the beta-phosphate of ATP to the phosphoglucan, whereas
the gamma-phosphate is transferred to water.
- In contrast to EC 2.7.9.4, which phosphorylates the glucose groups in
glucans predominantly on O-6, this enzyme phosphorylates glucose
groups in phosphorylated starch predominantly on O-3.
- The protein phosphorylates itself with the beta-phosphate of ATP,
which is then transferred to the glucan.
|
| Cross-references |
|---|
| BRENDA | 2.7.9.5 |
| EC2PDB | 2.7.9.5 |
| ExplorEnz | 2.7.9.5 |
| PRIAM enzyme-specific profiles | 2.7.9.5 |
| KEGG Ligand Database for Enzyme Nomenclature | 2.7.9.5 |
| IUBMB Enzyme Nomenclature | 2.7.9.5 |
| IntEnz | 2.7.9.5 |
| MEDLINE | Find literature relating to 2.7.9.5 |
| MetaCyc | 2.7.9.5 |
| UniProtKB/Swiss-Prot |
|
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