Biochemical analysis of related, independently arising histocompatibility mutants: bm17 and KB-98 enlarge the "bg series" of H-2K super(b) mutants

The "bg" series of MHC mutations is the most prevalent type of mutations of K super(b) in C57BL/6 mice screened by reciprocal tail skin grafting. The basis for identification of this series of mutations is the incompatibility of grafts between the parental B6 and the mutant. This series ta...

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Bibliographic Details
Published in:Biochemical genetics 1990-01, Vol.28 (7-8), p.433-442
Main Authors: Pfaffenbach, G M, Melvold, R W, Nathenson, S G
Format: Article
Language:English
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Summary:The "bg" series of MHC mutations is the most prevalent type of mutations of K super(b) in C57BL/6 mice screened by reciprocal tail skin grafting. The basis for identification of this series of mutations is the incompatibility of grafts between the parental B6 and the mutant. This series takes the longest to reciprocally reject the skin grafts. The series can be subdivided into "bg 1" and "bg 2" groups based on K super(b)-restricted recognition of virus-infected mutant target cells. The biochemical basis for these mutations are amino acid substitutions at residues 116 and 121 of the K super(b) transplantation antigen. These substitutions do not alter monoclonal antibody binding sites. The structural basis of MAb binding and the genetic basis of the mutation are discussed.
ISSN:0006-2928