Restricted assembly of MHC class II molecules in transgenic mice
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Restricted assembly of MHC class II molecules in transgenic mice
J Immunol.
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Abstract
Studies on cell lines transfected with MHC class II genes have revealed important limitations on the assembly of haplotype-mismatched A alpha:A beta complexes. These findings led to the speculation that pairing restrictions, if applied in a cell type-specific fashion, might be involved in various autoimmune phenomena. We have investigated pairing restrictions in vivo by analyzing transgenic mice that carry an Ak alpha chain, an Ak beta chain, or the Ak alpha:Ak beta complex on an H-2b or H-2s background. Our conclusion is that the assembly of haplotype-mismatched A alpha:A beta complexes is limited in vivo, and that this is equally true for all cell types examined, regardless of their role in the immune response.
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