Table 1.

Monovalent and bivalent antigen binding of IgG 3–43 determined by QCM with immobilized IgG 3–43.

analyte	Bmax	ka (M−1s−1)	kd (s−1)	KD (nM)
HER3-Fc	237.32	4.7 × 105	1.0 × 10−4	0.22
HER3-His6	63.55	6.2 × 105	7.0 × 10−3	11.2