Tags: Enzyme.
In enzymology an inositol-tetrakisphosphate 5-kinase (EC 2.7.1.140) is an enzyme that catalyzes the chemical reactionATP + 1D-myo-inositol 1346-tetrakisphosphate ADP + 1D-myo-inositol 13456-pentakisphosphateThus the two substrates of this enzyme are ATP and 1D-myo-inositol 1346-tetrakisphosphate whereas its two products are ADP and 1D-myo-inositol 13456-pentakisphosphate.This enzyme belongs to the family of transferases specifically those transferring phosphorus-containing groups (phosphotransferases) with an alcohol group as acceptor.