Presentation of viral antigen controlled by a gene in the major histocompatibility complex
- 31 May 1990
- journal article
- letter
- Published by Springer Nature in Nature
- Vol. 345 (6274) , 449-452
Abstract
WE describe a mutant human cell line (LBL 721.174)1,2 that has lost a function required for presentation of intracellular viral antigens with class I molecules of the major histocompatibility complex (MHC), but retains the capacity to present defined epitopes as extracellular peptides. The cell also has a defect in the assembly and expression of class I MHC molecules2,3,4, which we show can be restored by exposure of the cells to a peptide epitope. This phenotype suggests a defect in the association of intracellular antigen with class I molecules similar to that described for the murine mutant RMA-S (ref. 5), but in the present case the genetic defect can be mapped within the MHC locus on human chromosome 6.Keywords
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