Focal membranoproliferative glomerulonephritis and binding of IgM and B1C by electron and immunofluorescence microscopy.FSGS with focal glomerular deposition of IgM and β1C/β1A globulin.Membranous glomerulonephritisAcute tubular necrosis. Glomerulonephritis without glomerulosclerosis.NASclerosing glomerulonephritisMembranoproliferative glomerulonephritis with IgM and C3 deposition.Minimal change disease with IgA deposition.AA amyloidosisNADiffuse acute tubular injury with intratubular crystals- finely granular to fluffy deeply basophilic appearance.NA The gene discussed is C3; the disease is glomerulonephritis.