Abstract
A murine monoclonal antibody HAb27 specific for human hepatocarcinoma has been developed for radio-immunolocalization in animal models. The isotype of this antibody was IgG1, κ. In the present study, we used a set of oligonucleotide primers to amplify the cDNA of mouse immunoglobulin heavy and light chain variable region genes by the polymerase chain reaction. Sequence analysis of the heavy variable region indicated that the VH region was highly homologous to the plasmacytoma cell line MOPC21 gene, and closely related to germline genes of the VHIII family. The JH region was encoded by the JH3 gene. For the light chain, the Vκ segment of the antibody showed the highest homology to the germline VκOx1 gene, and the Jκ region was Jκ5.
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