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Letter

Nature Cell Biology 5, 1016–1022 (1 November 2003) | doi:10.1038/ncb1054

Production of PtdInsP3 at endomembranes is triggered by receptor endocytosis

Moritoshi Sato , Yoshibumi Ueda , Tokio Takagi & Yoshio Umezawa

Phosphatidylinositol-3,4,5-trisphosphate (PtdInsP3) regulates diverse cellular functions, including cell proliferation and apoptosis, and has roles in the progression of diabetes and cancer. However, little is known about its production.