Table I.

Kinetic constants for Ir-CPI interactions with kallikrein, FXIa, FXIIa, and plasmin

Ir-CPI–targeted factors ka1 (1/Ms) kd1 (1/s) ka2 (1/s) kd2 (1/s) K (1/M) 
Kallikrein 3.49 ± 0.54 × 104 5.32 ± 0.92 × 10−2 8.34 ± 0.07 × 10−3 1.42 ± 0.11 × 10−3 4.51 ± 0.19 × 106 
FXIa 2.31 ± 0.59 × 106 1.02 ± 0.51 × 10−1 2.98 ± 0.29 × 10−2 2.32 ± 0.28 × 10−3 3.83 ± 2.37 × 108 
FXIIa 2.19 ± 0.06 × 105 9.46 ± 0.04 × 10−2 6.55 ± 0.66 × 10−1 1.05 ± 0.04 × 10−1 1.68 ± 1.10 × 108 
Plasmin 9.00 ± 0.39 × 105 5.35 ± 1.33 × 10−3 5.82 ± 0.99 × 10−3 6.14 ± 0.96 × 10−3 3.30 ± 0.57 × 108 
Ir-CPI–targeted factors ka1 (1/Ms) kd1 (1/s) ka2 (1/s) kd2 (1/s) K (1/M) 
Kallikrein 3.49 ± 0.54 × 104 5.32 ± 0.92 × 10−2 8.34 ± 0.07 × 10−3 1.42 ± 0.11 × 10−3 4.51 ± 0.19 × 106 
FXIa 2.31 ± 0.59 × 106 1.02 ± 0.51 × 10−1 2.98 ± 0.29 × 10−2 2.32 ± 0.28 × 10−3 3.83 ± 2.37 × 108 
FXIIa 2.19 ± 0.06 × 105 9.46 ± 0.04 × 10−2 6.55 ± 0.66 × 10−1 1.05 ± 0.04 × 10−1 1.68 ± 1.10 × 108 
Plasmin 9.00 ± 0.39 × 105 5.35 ± 1.33 × 10−3 5.82 ± 0.99 × 10−3 6.14 ± 0.96 × 10−3 3.30 ± 0.57 × 108 

Data represent the mean ± SD of three experiments.

or Create an Account

Close Modal
Close Modal