UniprotKB/SwissProt ID: O80568 (O80568)
Gene Name:
ITPK4
Organism: Arabidopsis thaliana (Mouse-ear cress)
Function: Kinase that can phosphorylate the inositol polyphosphate Ins(1,3,4)P3 to form InsP4. Also phosphorylates a racemic mixture of Ins(1,4,6)P3 and Ins(3,4,6)P3 to form InsP4. Does not display inositol 3,4,5,6-tetrakisphosphate 1-kinase activity, but possesses inositol 1,4,5,6-tetrakisphosphate and inositol 1,3,4,5-tetrakisphosphate isomerase activity (PubMed:17698066). Ins(1,3,4,6)P4 is an essential molecule in the hexakisphosphate (InsP6) pathway (By similarity)
Other Modifications: View all modification sites in dbPTM
Protein Subcellular Localization:
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