Fig. 1.

Examples of cell-free preparation of OHC’s lateral plasma membrane: a, b topographical AFM images of unlabelled cytosolic face. c Topographical image of actin antibody-labeled specimen. Primary actin antibodies were conjugated to secondary antibodies for enhancement. All specimen were fixed with 2.5% glutaraldehyde. The color coding for relative height is shown under each image. d Height profile along the line in a. e Height profiles along the lines in b and c are represented by a dashed line and a solid line, respectively