ALLELES OF THE RAT T-CELL RECEPTOR BETA-CHAIN GENE-COMPLEX

被引:0
作者
BLANKENHORN, EP [1 ]
SMITH, PD [1 ]
WILLIAMS, CB [1 ]
GUTMAN, GA [1 ]
机构
[1] UNIV CALIF IRVINE,CALIF COLL MED,DEPT MICROBIOL & MOLEC GENET,IRVINE,CA 92717
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中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
Inbred rat strains provide a rich source of genetic diversity in immunologically relevant genes. We have characterized the alleles of one of these genes, encoding the rat T-cell receptor C-beta-1 chain, by Southern blots and nucleic acid sequencing. The Cb1 gene segments from DA and LEW rats display complex allotypic variation: both coding and noncoding regions contain multiple nucleotide substitutions. In addition, there is a polymorphic insertion of a rat repetitive LINE element 3' to the coding region. The Cb1 alleles are one part of larger Tcrb haplotypes, containing V-beta, D-beta, and J-beta elements; complete Cb1 genomic nucleotide sequences, and a partial list of the strain distribution of the two alleles, are described in this report.
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页码:324 / 331
页数:8
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