At the endoplasmic reticulum (ER) membrane, phosphatidylinositol 4-kinase alpha (PI4KA) (Wong et al. 1997, Gehrmann et al. 1999) or phosphatidylinositol 4-kinase type 2-beta (PI4K2B) (Wei et al. 2002) phosphorylate phosphatidylinositol (PI) to produce phosphatidylinositol 4-phosphate (PI4P).
Wei, YJ, Barylko, B, Yamamoto, M, Albanesi, JP, Wlodarski, P, Sun, HQ, Martínez, M, Yin, HL, Kunii, K
Cantley, LC, Meyers, ddR, Wong, K
Balla, A, Gülkan, H, Herberg, FW, Gehrmann, T, Mayr, GW, Vereb, G, Heilmeyer LM, Jr, Suer, S
1-phosphatidylinositol 4-kinase activity of PI4KA/2B [cytosol]
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