Protein kinase C and casein kinase substrate in neurons protein 1 (Pacsin1)

Binds to membranes through its F-BAR domain and mediates membrane tubulation. Plays a role in the reorganization of the microtubule cytoskeleton through its interaction with MAPT; this reduces microtubule stability and inhibits MAPT-induced microtubule polymerization.

Plays a role in cellular transport processes by recruiting DNM1, DNM2 and DNM3 to membranes. Plays a role in the reorganization of the actin cytoskeleton and in neuron morphogenesis through its interaction with COBL and WASL, and by recruiting COBL into the cell cortex.