TABLE 1.

Summary of thermodynamic and kinetic constants determined from fits of Equation 2 to adhesion time courses in Figs. 4 and 6

mR	mL	kr	kf	Ka	R2
μm−2	μm−2	s−1	×10−4 s−1 μm−2	×104 μm−2
CCAD (7)	CEC1245 Fc (10)	0.31 ± 0.06	7.2 ± 0.9	30 ± 9	0.91
CCAD (7)	CEC12 Fc (155)	0.9 ± 0.2	1.3 ± 0.2	1.4 ± 0.5	0.78
CCAD (44)	CEC1–5 W2A His6 (556)	0.08 ± 0.01	0.008 ± 0.001	0.09 ± 0.02	0.91
CCAD W2A (24)	CEC1–5 Fc (452)	0.10 ± 0.03	0.01 ± 0.002	0.12 ± 0.05	0.78
CCAD W2A (24)	CEC1–5 Fc (328)	0.07 ± 0.02	0.008 ± 0.002	0.10 ± 0.05	0.81

The contact area A_C was approximately 3 μm². The numbers in parentheses are the cadherin densities in #/μm².