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