Table 2.

FcγR, FcRn, C1q and FcαRI binding of antibodies determined by surface plasmon resonance

	KD values (nM)
	FcαRI	FcγRI	FcγRIIIa 158F	FcγRIIIa 158V	FcγRIIa	FcγRIIb	hFcRn	mFcRn	C1q
Her2-IgG1	N.B.	6.05	1,770	409	638	4,980	1,210	97.5	222
Her2-IgG1/IgA2	128	7.61	1,810	401	771	5,900	1,790	140	677
Her2-IgA2	122	N.B.	N.B.	N.B.	N.B.	N.B.	N.B.	N.B.	N.B.
Her2-IgG1-afuc	N.B.	6.27	312	132	1,220	4,240	1,250	97.9	266

N.B. indicates no detectable binding.