Synonyms: Apyrase from potatoes; Adenosine 5'-diphosphatase; Adenosine 5'-triphosphatase
MDL Number: MFCD00130542
Storage: -20C
Application: At least two isoenzymes are found in different varieties of S. tuberosum: one with a high ATPase/ADPase ratio (~10) and another with a low ratio (~1).Reaction: ATP ? ADP+Pi ? AMP+2Pi.
Biochem Physiol Actions: Apyrase is found in all eukaryotes and some prokaryotes. Apyrase, from potato, has a crucial role in regulating growth and development. Apyrase is involved in the inactivation of synaptic ATP as a neurotransmitter following nerve stimulation and in the inhibition of ADP induced platelet aggregation to prevent thrombosis. Divalent metal ions are required for activity and best activity is observed with calcium ion at 5 mM.
Other Notes: This grade has a low ATPase/ADPase ratio.