POLYPEPTIDE AND PROTEIN PRODUCTS PRODUCED BY GENETICALLY ENGINEERED ORGANISMS; MONOCLONAL ANTIBODIES; MONOCLONAL ANTIBODY-BASED REAGENTS FOR USE IN IMMUNOPURIFICATION; MONOCLONAL ANTIBODY-BASED KITS AND REAGENTS FOR USE IN IMMUNOASSAY [ ; OLIGONUCLEOTIDES AND POLYNUCLEOTIDES FOR USE IN RECOMBINANT DNA TECHNOLOGY AND IN DIAGNOSIS ]