title: Recognition of a polymorphic monocyte antigen in HLA.
abstract: The serological recognition of 'new' gene products of the HLA system can be accomplished by selecting sera with strong leucocyte antibodies and testing these against a panel of cells obtained from donors which are compatible for the known HLA antigens with the antibody producer. This approach, which we termed the HLA-CAP approach (compatible with antibody producer), was essential in the recognition of what is now called the HLA-DR locus and of non HLA-linked T-cell subgroups. Using the same technique, we have defined here several sera recognizing a structure on monocytes similar to one of the alleles of the HLA-linked PL3 or secondary B-cell (SB) system, so far only recognized by cellular techniques.
mesh_terms: D000328:Adult; D001402:B-Lymphocytes / Q000276:immunology; D003602:Cytotoxicity, Immunologic; D005260:Female; D005796:Genes; D006680:HLA Antigens / Q000235:genetics / Q000276:immunology*; D006684:HLA-DR Antigens; D000949:Histocompatibility Antigens Class II / Q000235:genetics*; D006801:Humans; D008297:Male; D009000:Monocytes / Q000276:immunology*; D013601:T-Lymphocytes / Q000276:immunology
chemical_list: D006680:HLA Antigens; D006684:HLA-DR Antigens; D000949:Histocompatibility Antigens Class II