inositol 5-diphosphate pentakisphosphate 5-kinase activity
inositol 5-diphosphate pentakisphosphate 5-kinase activity
Catalysis of the reaction: ATP + 5-diphospho-1D-myo-inositol pentakisphosphate = ADP + 5-triphospho-1D-myo-inositol pentakisphosphate.