| 英文名 |
phosphoglucan, water dikinase |
| Example Structure |
 |
| 别名 |
At5g26570, AtPWD, GWD3, OK1, phosphoglucan, water dikinase, PWD, StGWD3 |
| EC Number |
2.7.9.5 |
| CAS编号 |
912567-76-1 |
| Comments |
The enzyme phosphorylates granular starch that has previously been phosphorylated by EC?2.7.9.4, ¦Á-glucan, water dikinase; there is no activity with unphosphorylated glucans. It transfers the ¦Â-phosphate of ATP to the phosphoglucan, whereas the ¦Ã-phosphate is transferred to water [1]. 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 [2]. The protein phosphorylates itself with the ¦Â-phosphate of ATP, which is then transferred to the glucan [1]. |
| Cofactor |
|
| History |
|
| Reactions |
Atp + (phospho-alpha-glucan) + H(2)O = amp + O-phospho-(phospho-alpha- glucan) + phosphate. |
