In addition, previous research has described a role for PI(3)P in cell division, by localizing to the midbody and recruiting the cytokinesis regulatory machinery [307], in toll-like receptor 9 (TLR9)-induced IgA immunity [308], in COPII-mediated ER-to-Golgi trafficking of STING, which is essential for control of infections and for tumour immunosurveillance [309], and in survival of rod photoreceptor cells in the eye [310]. Here, TLR9 is linked to infection.