. 2007 Sep 25;104(40):15659–15664. doi: 10.1073/pnas.0705888104

Table 1.

ELISA EC₅₀ and SPR K_d values

Antibody binding to Aβ(1–40)	Protofibrils, IgG ELISA EC₅₀, nM	Fibrils			Monomer, Fab SPR K_d, nM
Antibody binding to Aβ(1–40)	Protofibrils, IgG ELISA EC₅₀, nM	IgG ELISA EC₅₀, nM	IgG SPR K_d, nM	Fab SPR K_d, nM	Monomer, Fab SPR K_d, nM
PFA1	0.15 ± 0.12	0.07 ± 0.01	0.018	60 ± 10	39.0 ± 0.1; 21 ± 7 (IgG)
PFA2	0.16 ± 0.09	0.2 ± 0.2	0.150 ± 0.050	35 ± 1	25 ± 4