Table 2. Kinetic parameters describing force-dependent models for ternary wild type versus ternaryΔH1.

95% confidence intervals (CIs) for each parameter are obtained through empirical bootstrapping. Bound to unbound B → U single-state slip bond parameters for ternaryΔH1 correspond to the strong to unbound 2 → 0 two-state catch bond parameters for ternary wild type. Akaike information criterion (AIC) and Bayesian information criterion (BIC) indicated that the single-state slip bond model represented ternaryΔH1 data better than the two-state slip bond model.

TernaryΔH1: one-state slip bond
	B → U
${\displaystyle k_{i\to j}^0}$	0.49
CI (s−1)	(0.41, 0.58)
${\displaystyle x_{i\to j}}$	0.48
CI (nm)	(0.36, 0.60)
AIC	6.4
BIC	16.21
Ternary wild type: two-state catch bond
	2 → 0	2 → 1	1 → 0	1 → 2
${\displaystyle k_{i\to j}^0}$	0.22	6.27	13.57	0.15
CI (s−1)	(0.15, 0.35)	(1.61, 369.66)	(13.27, 14.21)	(0.05, 0.39)
${\displaystyle x_{i\to j}^{(-)}}$	0.55	3.46	0	4.72
CI (nm)	(0.28, 0.78)	(1.30, 18.30)	Fixed	(3.92, 5.70)
${\displaystyle x_{i\to j}^{(+)}}$	0.98	15	0	2.73
CI (nm)	(0.74, 1.19)	Fixed	Fixed	(2.11, 3.40)
Ternary wild type: two-state catch bond, non-directional fit
	2 → 0	2 → 1	1 → 0	1 → 2
${\displaystyle k_{i\to j}^0}$	0.19	884.52	13.28	1.17
CI (s−1)	(0.05, 0.40)	(5.18, 1000.0)	(13.26, 14.37)	(0.08, 5.39)
${\displaystyle x_{i\to j}}$	0.76	15.20	0	2.17
CI (nm)	(0.37, 1.43)	(2.44, 17.53)	Fixed	(1.22, 4.55)