This family of kinocilin proteins is found in vertebrate. In mouse it has been shown that this protein is expressed primarily in the kinocilium of sensory cells in the inner ear [1].

1: Initial characterization of kinocilin, a protein of the hair cell kinocilium. Leibovici M, Verpy E, Goodyear RJ, Zwaenepoel I, Blanchard S, Laine S, Richardson GP, Petit C; Hear Res. 2005;203:144-153. PMID:15855039