title: An anti-A agglutinin active only in the presence of borate.
mesh_terms: D000017:ABO Blood-Group System / Q000276:immunology*; D000293:Adolescent; D000918:Antibody Specificity; D001323:Autoantibodies / Q000145:classification / Q000302:isolation & purification*; D001881:Borates / Q000494:pharmacology*; D003298:Coombs Test; D006801:Humans; D007074:Immunoglobulin G / Q000145:classification; D008297:Male
chemical_list: D000017:ABO Blood-Group System; D001323:Autoantibodies; D001881:Borates; D007074:Immunoglobulin G