IUBMB Enzyme Nomenclature


Accepted name: 1-phosphatidylinositol 4-kinase

Reaction: ATP + 1-phosphatidyl-1D-myo-inositol = ADP + 1-phosphatidyl-1D-myo-inositol 4-phosphate

For diagram click here.

Other name(s): phosphatidylinositol kinase (phosphorylating); phosphatidylinositol 4-kinase; phosphatidylinositol kinase; type II phosphatidylinositol kinase; PI kinase; PI 4-kinase

Systematic name: ATP:1-phosphatidyl-1D-myo-inositol 4-phosphotransferase

Comments: This reaction is catalysed by at least two different isoforms.

Links to other databases: BRENDA, EXPASY, GTD, KEGG, Metacyc, PDB, CAS registry number: 37205-54-2


1. Colodzin, M. and Kennedy, E.P. Biosynthesis of diphosphoinositide in brain. J. Biol. Chem. 240 (1965) 3771-3780. [PMID: 4284712]

2. Kai, M., White, G.L. and Hawthorne, J.N. The phosphatidylinositol kinase of rat brain. Biochem. J. 101 (1966) 328-337. [PMID: 4290722]

3. Walker, D.H., Dougherty, N. and Pike, L.J. Purification and characterization of a phosphatidylinositol kinase from A431 cells. Biochemistry 27 (1988) 6504-6511. [PMID: 2851325]

4. Whitman, M., Downes, C.P., Keeler, M., Keller, T. and Cantley, L. Type I phosphatidylinositol kinase makes a novel inositol phospholipid, phosphatidylinositol-3-phosphate. Nature 332 (1988) 644-646. [PMID: 2833705]

5. Barylko, B., Gerber, S.H., Binns, D.D., Grichine, N., Khvotchev, M., Sudhof, T.C. and Albanesi, J.P. A novel family of phosphatidylinositol 4-kinases conserved from yeast to humans. J. Biol. Chem. 276 (2001) 7705-7708. [PMID: 11244087]

[EC created 1972, modified 1982, modified 2002]

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