Figure 5.
(a) Composite force vs. distance curve showing the measured primary and secondary adhesive minima at 25% cadherin coverage. Open symbols indicate the advancing force curves and the filled circles show the receding force profiles. The arrows show the positions at which the bonds yielded. The sluggish unbinding regimes are not shown in this figure. (b) The proposed relative cadherin alignments at the positions of the two attractive minima.