Table 1. Parameters used in the numerical examples.

Parameter (Symbol)	Value	Units	Remarks
Force-independent part of potential ()		J	Models no growth for vanishing force.
Temperature ()		K	—
Actin stress fiber angle ()		degrees	Effect of varying can be subsumed by varying .
Young's modulus ()		kPa	Estimate for soft, gel-like biological materials.
Bending modulus ()		N.m	Estim. from and cell memb. thickness nm.
Cell memb. curvature ()		m	Estim. from cell height m.
Initial FA length ()		m	Typical focal complex length.
FA width ()		m	Estim. from images in [4] and [2].
Upper bound on complex size ()		nm	Motivated by [29].
Lower bound on complex size ()		nm	Integrin packing density; see [30].
Conformational displacement ()		nm	Estimated from integrin domain size.
Kinetic coeff. ()		s	For sliding velocities nms; see [2].
Ref. displacement for unbinding ()	1.48	nm	From ref. [28].
Max. conc. ()		m	.