Figure 1: Antibody locomotion on Sendai purple membrane.
From: IgGs are made for walking on bacterial and viral surfaces

(a) Averaged AFM image (n=5) of the cytoplasmic face of Sendai PM. Scale bar, 10 nm. (b) Schematic of antibody locomotion. (c) Time series of AFM images showing an antibody moving on Sendai PM (Supplementary Movie 2). At t=0.5 s, an antibody appeared on the surface (projection of the Fab arms onto the PM surface is indicated by black arrows). The subsequent images show the same antibody with one or the other Fab arm in a different position (red arrow), while at least one Fab arm remains stationary between consecutive images (white arrows). Scale bar, 10 nm.