Junctophilin-3 (JPH3)

Junctophilins contribute to the formation of junctional membrane complexes (JMCs) which connect the plasma membrane with the endoplasmic or sarcoplasmic reticulum in excitable cells. Provides a structural base for operational cross-talk between the cell surface and intracellular calcium release channels.

JPH3 is brain- specific and appears to have an active part in some specific neurons involved in motor coordination and memory. .