Table 2. k_on and k_off values of mature and UCA Fabs MuSK1A, MuSK1B, and MuSK3-28.

	kon (M−1 s−1)	koff (s−1)
MuSK1A	3.2 ± 0.03 × 105	1.3 ± 0.007 × 10−4
UCA MuSK1A	5.7 ± 0.04 × 105	1.8 ± 0.003 × 10−2
MuSK1B	4.3 ± 0.04 × 105	1.9 ± 0.008 × 10−4
UCA MuSK1B	4.0 ± 0.04 × 105	2.1 ± 0.006 × 10−2
MuSK3-28	1.4 ± 0.003 × 105	1.6 ± 0.001 × 10−3
UCA MuSK3-28	0.022 ± 0.0003 × 105	1.9 ± 0.009 × 10−3

k_on, association rate; k_off, dissociation rate.