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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Margulies, D. H. Lechler, R. I. Suzuki, G. Tou, J. Y. Ashwell, J. D. Nickerson, K. M. Germain, R. N. |
| Abstract | To investigate the role of the highly polymorphic amino-terminal (beta 1) domain of the class II major histocompatibility polypeptide A beta during recognition by T cells and antibodies, 'exon-shuffling' was carried out between genomic recombinant DNA clones of Ak beta and Ad beta to generate a hybrid gene containing Ak beta exons for the amino-terminal domain followed by the Ad beta exons for the remainder of the molecule. L-cell gene transfectants expressing this hybrid A beta gene in combination with Ak alpha were compared to L cells expressing wild-type Ak beta Ak alpha dimers in tests of antigen-presentation to T-cell clones and hybridomas and for staining by a panel of anti-I-Ak-specific monoclonal antibodies. These antibodies were also tested for their reactivity with a B-lymphoma transfectant expressing Ak beta in the absence of Ak alpha. The results showed no qualitative differences in either T-cell or antibody-mediated recognition of I-Ak molecules containing either the exon-shuffled or wildtype Ak beta. Together with the data involving the B cell transfectant expressing only Ak beta, these results map control of the A beta contribution to the immunologically relevant determinants of I-Ak to the highly polymorphic amino-terminal domain and indicate little, if any, contribution to allele-specific recognition by amino acid sequence variations in the remaining portions of the A beta polypeptide. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 9 |
| Volume Number | 82 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 1985-06-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Histocompatibility Antigens Class II Genetics Isoantibodies Immunology T-Lymphocytes Alleles Animals Binding Sites DNA, Recombinant Genes, MHC Class II L Cells (Cell Line) Mice Research Support, U.S. Gov't, P.H.S. Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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