TABLE 2.

Inhibition of MAb HAS binding to purified pili of N. meningitidis C311 in ELISAs in the presence of ChoP and analogs

Competitor concn	% Inhibition of MAb binding bya:
	ChoP	C	PE	E
100 mM	100	99	0	0
10 mM	100	75	0	0
1 mM	100	29	0	0
100 μM	100	20	0	0
10 μM	99	15	0	0
1 μM	65	9	0	0
100 nM	16	2	0	0

^aC, choline; PE, phosphorylethanolamine; E, ethanolamine.