Tags: Enzyme.
In enzymology an inositol-trisphosphate 3-kinase (EC 2.7.1.127) is an enzyme that catalyzes the chemical reactionATP + 1D-myo-inositol 145-trisphosphate ADP + 1D-myo-inositol 1345-tetrakisphosphateThus the two substrates of this enzyme are ATP and 1D-myo-inositol 145-trisphosphate whereas its two products are ADP and 1D-myo-inositol 1345-tetrakisphosphate.This enzyme belongs to the family of transferases specifically those transferring phosphorus-containing groups (phosphotransferases) with an alcohol group as acceptor.