title: Immunochemical studies on blood group A substance from human hair.
abstract: Blood group A-active substance was extracted from urea-treated human hair uith methanol-ethyl ether 1:1, v/v) or chloroform-methanol (1:1, v/v). The serological activity of blood group A substance in the hair was destroyed by A-decomposing enzyme from Clostridium tertium with concomitant development of blood group H activity. It is concluded therefore that the extract from the hair of group A contained blood group A-active glycolipid with N-acetylgalactosamine as the non-reducing sugar.
mesh_terms: D000818:Animals; D001789:Blood Group Antigens; D002645:Chickens; D004524:Eels; D006017:Glycolipids / Q000378:metabolism; D006197:Hair / Q000276:immunology* / Q000378:metabolism; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D007106:Immune Sera
chemical_list: D001789:Blood Group Antigens; D006017:Glycolipids; D007106:Immune Sera