C3 and complement 3 glomerulopathy: The C3 fragment deposition in C3KI.C5KO mice did not appear to lead to morphological features of C3 glomerulopathy, as glomeruli appeared normal in the Martius scarlet blue– (MSB-) and PAS-stained sections (Figure 8, E and F, and Supplemental Figure 10, F–I).