In
enzymology
An enzyme () is a protein that acts as a biological catalyst by accelerating chemical reactions. The molecules upon which enzymes may act are called substrate (chemistry), substrates, and the enzyme converts the substrates into different mol ...
, a phosphoglucan, water dikinase () is an
enzyme
An enzyme () is a protein that acts as a biological catalyst by accelerating chemical reactions. The molecules upon which enzymes may act are called substrate (chemistry), substrates, and the enzyme converts the substrates into different mol ...
that
catalyzes the
chemical reaction
A chemical reaction is a process that leads to the chemistry, chemical transformation of one set of chemical substances to another. When chemical reactions occur, the atoms are rearranged and the reaction is accompanied by an Gibbs free energy, ...
:ATP +
hospho-alpha-glucan+ H
2O
AMP + O-phospho-
hospho-alpha-glucan+ phosphate
The 3
substrates of this enzyme are
ATP,
phospho-alpha-glucan, and
H2O, whereas its 3
products are
AMP,
O-phospho-[phospho-alpha-glucan">hospho-alpha-glucan.html" ;"title="O-phospho-[phospho-alpha-glucan">O-phospho-[phospho-alpha-glucan and phosphate">hospho-alpha-glucan">O-phospho-[phospho-alpha-glucan">hospho-alpha-glucan.html" ;"title="O-phospho-[phospho-alpha-glucan">O-phospho-[phospho-alpha-glucan and phosphate.
This enzyme belongs to the family of transferases, to be specific, those transferring phosphorus-containing groups (phosphotransferases) with paired acceptors (dikinases). The List of enzymes, systematic name of this enzyme class is ATP:phospho-alpha-glucan, water phosphotransferase. Other names in common use include PWD, and OK1.
References
*
*
EC 2.7.9
Enzymes of unknown structure
{{2.7-enzyme-stub