Table 2.

Levels of complement components in sera from wild-type (WT) and complement-deficient mice.

Complement components†
Mice	C1q	C3	C4	Factor B	Factor D
WT	0.80 ± 0.06	1.63 ± 0.10	0.37 ± 0.06	0.91 ± 0.05	1.85 ± 0.02
Df−/−	0.90 ± 0.11	2.11 ± 0.09*	0.26 ± 0.08	1.20 ± 0.07**	< 0.10
MBL−/−/Df−/−	0.86 ± 0.09	1.65 ± 0.04	0.19 ± 0.05	1.05 ± 0.05	< 0.10
C1q−/−/Df−/−	< 0.15	2.27 ± 0.07***	< 0.10****	0.97 ± 0.04	< 0.10

^*P < 0·004,

^**P < 0·005,

^***P < 0·0003,

^****P < 0·0001, each in comparison to WT.

^†The data are expressed as optical density units with mean ± standard error of the mean based on n = 6.