GO:0000831

inositol hexakisphosphate 6-kinase activity

Details: 
Catalysis of the reaction: ATP + 1D-myo-inositol hexakisphosphate = ADP + 6-diphospho-1D-myo-inositol (1,2,3,4,5)pentakisphosphate. [GOC:elh, PMID:16429326]
Evidence Code: