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. 1982 Dec;79(24):7832–7836. doi: 10.1073/pnas.79.24.7832

HLA antigen structural gene mutants selected with an allospecific monoclonal antibody.

D Pious, M S Krangel, L L Dixon, P Parham, J L Strominger
PMCID: PMC347443  PMID: 6961455

Abstract

The HLA-A2 antigen-specific monoclonal antibody BB7.2 and complement were used to immunoselect mutants from an ethyl methanesulfonate-mutagenized human B lymphoid cell line, T5-1. Surviving colonies were screened by radioimmune binding with BB7.2 and with a monospecific HLA-A2 alloantiserum, Stewart, and HLA antigens of selected clones were immunoprecipitated and studied by isoelectric focusing. Several classes of mutants could be distinguished: mutants that expressed no HLA-A2 heavy chain; mutants that expressed an HLA-A2 heavy chain that was unable to associate with beta 2-microglobulin (beta 2m) and was not expressed at the cell surface; mutants with reduced HLA-A2 heavy chain-beta 2m association and cell surface expression of HLA-A2 dimer with or without heavy chain charge alterations; mutants with normal HLA-A2 heavy chain-beta 2m association and normal quantitative cell surface HLA-A2 expression but with HLA-A2 heavy chain charge alterations; and mutants with as yet incompletely defined lesions. Mutants with altered cell surface HLA antigens were not found in previous selections with alloantisera and should be useful for epitope mapping and structure-function studies of HLA molecules.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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