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Fig. 2. Force-distance spectra for cadherin/cadherin bonds. Typical force-distance curves during the forced de-adhesion of two apposing E-cadherin cells at a constant cantilever reproach velocity of 25 µm/second. One cell is attached to the cantilever of the MFP (shown in Fig. 1); the other cell is plated on a culture dish. Arrows indicate the rupture of cadherin bonds. Only curves showing a single clear bond rupture were analyzed.