Espin (Espn)

Multifunctional actin-bundling protein. Plays a significant role in regulating the organization, dimension, dynamics and signaling capacities of the actin filament-rich microvilli from the mechanosensory and chemosensory cells (PubMed:14657236, PubMed:15190118).

Required for the assembly and stabilization of the stereociliary parallel actin bundles. Plays a vital role in the formation and maintenance of inner ear hair cell stereocilia (PubMed:21455486).