Tags: Enzyme.
In enzymology a diphosphoinositol-pentakisphosphate kinase (EC 2.7.4.24) is an enzyme that catalyzes the chemical reactionATP + 1D-myo-inositol 5-diphosphate pentakisphosphate ADP + 1D-myo-inositol bisdiphosphate tetrakisphosphate (isomeric configuration unknown)Thus the two substrates of this enzyme are ATP and 1D-myo-inositol 5-diphosphate pentakisphosphate whereas its 3 products are ADP 1D-myo-inositol bisdiphosphate tetrakisphosphate and (isomeric configuration unknown).This enzyme belongs to the family of transferases specifically those transferring phosphorus-containing groups (phosphotransferases) with a phosphate group as acceptor.