Pyrophosphatases, also known as diphosphatases, are
acid anhydride hydrolases that act upon
diphosphate
In chemistry, pyrophosphates are phosphorus oxyanions that contain two phosphorus atoms in a linkage. A number of pyrophosphate salts exist, such as disodium pyrophosphate () and tetrasodium pyrophosphate (), among others. Often pyrophosphate ...
bonds.
Examples include:
*
Inorganic pyrophosphatase, which acts upon the free pyrophosphate ion
*
Tobacco acid pyrophosphatase, which catalyses the hydrolysis of a
phosphoric ester
* Various organic pyrophosphatases, which act upon organic molecules with the pyrophosphate group (but excluding triphosphatases that act on the final bond):
**
Thiamine pyrophosphatase
See also
*
References
External links
*
Biochemical reactions
EC 3.6.1
{{3.6-enzyme-stub