Phosphoinositide-interacting protein (Pirt)

Regulatory subunit of TRPV1, a molecular sensor of noxious heat and capsaicin. Positively regulates TRPV1 channel activity via phosphatidylinositol 4,5-bisphosphate (PIP2).

Binds various phosphoinositide, including phosphatidylinositol 4,5- bisphosphate (PIP2), but not phosphatidylinositol (PI). .