PI is phosphorylated to PI4P by PI4K2A/B at the early endosome membrane

At the early endosome membrane, phosphatidylinositol 4-kinase type 2-alpha/beta (PI4K2A/B) (Balla et al. 2002) phosphorylates phosphatidylinositol (PI) to produce phosphatidylinositol 4-phosphate (PI4P).

在早期内体膜上，磷脂酰肌醇4激酶2-α/β型（PI4K2A/B）（Balla等，2002年）将磷脂酰肌醇（PI）磷酸化，生成磷脂酰肌醇4磷酸（PI4P）。