Contactin-associated protein 1 (CNTNAP1)

Required, with CNTNAP2, for radial and longitudinal organization of myelinated axons. Plays a role in the formation of functional distinct domains essential for saltatory conduction of nerve impulses in myelinated nerve fibers.

Demarcates the paranodal region of the axo-glial junction. In association with contactin involved in the signaling between axons and myelinating glial cells.