Term Name: | inositol heptakisphosphate 4-kinase activity |
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Synonyms: | diphosphoinositol-pentakisphosphate 4-kinase activity, IP7 4-kinase activity |
Definition: | 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. |
Ontology: | GO: Molecular Function [GO:0000833] QuickGO AmiGO |