Table 1.

Second-order rate constant of PAI-1 inhibition of uPA

Enzyme	k1, M−1·s−1
ch-uPAwt	4.50 ± 1.81 × 104
	(n = 3)
ch-uPARRHR	3.02 ± 1.76 × 107
	(n = 3)
h-uPA*	1.8 × 107 to 1.6 × 108

^*h-uPA rate constant values were taken from references 36 and 37.