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Catalysis of the phosphorylation of inositol phosphates which possess pyrophosphate bonds. Catalysis of the reaction: ATP + diphospho-1D-myo-inositol-pentakisphosphate (PP-IP5; isomer unknown) = ADP + bis(diphospho)-1D-myo-inositol-tetrakisphosphate (bis-PP-IP4; isomer unknown). Catalysis of the reaction: ATP + 4-diphospho-1D-myo-inositol (1,2,3,5,6)pentakisphosphate = 4,5-bisdiphosphoinositol-1D-myoinositol (1,2,3,6)tetrakisphosphate, or ATP + 6-diphospho-1D-myo-inositol (1,2,3,4,5)pentakisphosphate = 5,6-bisdiphosphoinositol-1D-myoinositol (1,2,3,4)tetrakisphosphate. Catalysis of the reaction: ATP + 5-diphospho-1D-myo-inositol (1,2,3,4,6)pentakisphosphate = 4,5-bisdiphosphoinositol-1D-myoinositol (1,2,3,6)tetrakisphosphate, or ATP + 5-diphospho-1D-myo-inositol (1,2,3,4,6)pentakisphosphate = 5,6-bisdiphosphoinositol-1D-myoinositol (1,2,3,4)tetrakisphosphate. Catalysis of the transfer of a phosphorus-containing group from one compound (donor) to a phosphate group (acceptor). Catalysis of the phosphorylation of myo-inositol (1,2,3,5/4,6-cyclohexanehexol) or a phosphatidylinositol.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: inositol heptakisphosphate kinase activity
Acc: GO:0000829
Aspect: Molecular Function
Desc: Catalysis of the reaction: ATP + diphospho-1D-myo-inositol-pentakisphosphate (PP-IP5; isomer unknown) = ADP + bis(diphospho)-1D-myo-inositol-tetrakisphosphate (bis-PP-IP4; isomer unknown).
Proteins in PDR annotated with:
   This term: 2 [Search]
   Term or descendants: 2 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0000829 - inositol heptakisphosphate kinase activity (interactive image map)
YRC Informatics Platform - Version 3.0
Created and Maintained by: Michael Riffle