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. Author manuscript; available in PMC: 2014 Nov 7.
Published in final edited form as: Nature. 2013 Nov 7;503(7474):59–66. doi: 10.1038/nature12709

Figure 1. Insulin signal transduction.

Figure 1

In hepatocytes, insulin regulates HGP by activating the IRS–PI(3)K pathway, which inhibits the transcription factor FOXO1. FOXO1 activation increases gluconeogenesis, leading to increased hepatic glucose production (HGP). PIP2, phosphatidylinositol-4,5-bisphosphate; PIP3, phosphatidylinositol-3,4,5-triphosphate.