title: Homozygous C2 deficiency with fulminant lupus erythematosus: severe nephritis via the alternative complement pathway.
mesh_terms: D000293:Adolescent; D003175:Complement C2 / Q000172:deficiency*; D003165:Complement System Proteins / Q000378:metabolism; D006680:HLA Antigens; D006461:Hemolysis; D006462:Hemolytic Plaque Technique; D006720:Homozygote; D006801:Humans; D008180:Lupus Erythematosus, Systemic / Q000150:complications / Q000235:genetics / Q000276:immunology*; D008297:Male; D009393:Nephritis / Q000150:complications / Q000276:immunology*; D009394:Nephritis, Hereditary; D011414:Properdin / Q000276:immunology
chemical_list: D003175:Complement C2; D006680:HLA Antigens; D011414:Properdin; D003165:Complement System Proteins