Fig. 1

Linear deposition of IgG and IgG1 in diabetic nephropathy. A Glomerular linear IgG expression (Green), collagen IV α5 expression (Red), and colocalization of IgG and collagen IV α5 in glomeruli (IF, × 200); B negative C3, C4, and C1q in the same biopsy of figure A (IF, × 200); C glomerular linear IgG1 expression (Green), collagen IV α5 expression (Red), and colocalization of IgG1 and collagen IV α5 in glomeruli (IF, × 200)