TABLE 1.

Affinities for human and mouse BCMA as measured by BIAcore

Values represent the average of a global fit using three curves from separate experiments. Ru, resonance units.

Protein	ka	kd	KD
	m−1 s−1	s−1	m
Affinities for human BCMA-Fc
WT	5.3 ± 0.1 × 105	2.0 ± 0.1 × 10−4	3.8 ± 0.1 × 10−10
R206E	3.3 ± 0.0 × 105	1.5 ± 0.0 × 10−4	4.6 ± 0.0 × 10−10
Affinities for mouse BCMA-Fc
WT	8.9 ± 0.0 × 105	1.3 ± 0.0 × 10−4	1.4 ± 0.1 × 10−10
R206E	16 ± 0.0 × 105	1.5 ± 0.0 × 10−4	0.95 ± 0.3 × 10−10