Copine-6 as a regulator of TRPM3 membrane trafficking and noxious heat sensation.

Noxious heat sensation involves multiple molecular receptors that operate under complex regulatory mechanisms. In a recent study, Gao, Yan, and colleagues identified Copine-6 as a calcium-sensitive phospholipid-binding protein that promotes TRPM3 trafficking to the plasma membrane in thermal sensory neurons and thereby enhances noxious heat sensitivity in mice. These findings expand current understanding of the mechanisms regulating thermal sensation.