5 proteins (C1QC, C4B, FGB, FGG, and SERPINA1) were highly increased in the MN subgroup, while 13 proteins (C1QB, C3, C4A, C4B, C6, C8B, C8G, C9, F9, FGB, FGG, KNG1, and SERPINA1) were markedly increased in the LN subgroup. Here, KNG1 is linked to lobular neoplasia.