In the nucleus, inositol polyphosphate multikinase (IPMK) phosphorylates inositol 1,3,4,6-tetrakisphosphate (I(1,3,4,6)P4) to inositol 1,3,4,5,6-pentakisphosphate (I(1,3,4,5,6)P5) (Chang et al. 2002, Chang & Majerus 2006).
Majerus, PW, Chang, SC
Wente, SR, Majerus, PW, Feng, Y, Miller, AL, Chang, SC
inositol tetrakisphosphate 5-kinase activity of IPMK [nucleoplasm]
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