The distribution of tubulin has been investigated in surface preparations of the guinea pig
organ of Corti using indirect immunofluorescence microscopy. Two different monoclonal
antibodies to tubulin produce similar distinct patterns of labelling in hair cells. Labelling is
greater in inner hair cells than outer hair cells. It occurs in rings around the cell apex, and in
a meshwork below and channels through, the cuticular plate. In outer hair cells from the
apical region of the cochlea, labelling occurs around the location of a basalward protrusion …