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| Content Provider | Springer Nature Link |
|---|---|
| Author | Ettinger, Ruth A. Moustakas, Antonis K. Lobaton, Suzanne D. |
| Copyright Year | 2004 |
| Abstract | MHC class II genes are major genetic components in rats developing autoimmunity. The majority of rat MHC class II sequencing has focused on exon 2, which forms the first external domain. Sequence of the complete open reading frame for rat MHC class II haplotypes and structure-based alignment is lacking. Herein, the complete open reading frame for RT1-Bβ, RT1-Bα, RT1-Dβ, and RT1-Dα was sequenced from ten different rat strains, covering eight serological haplotypes, namely a, b, c, d, k, l, n, and u. Each serological haplotype was unique at the nucleotide level of the sequenced RT1-B/D region. Within individual genes, the number of alleles identified was seven, seven, six, and three and the degree of amino-acid polymorphism between allotypes for each gene was 22%, 16%, 19%, and 0.4% for RT1-Bβ, RT1-Bα, RT1-Dβ, and RT1-Dα, respectively. The extent and distribution of amino-acid polymorphism was comparable with mouse and human MHC class II. Structure-based alignment identified the β65–66 deletion, the β84a insertion, the α9a insertion, and the α1a–1c insertion in RT1-B previously described for H2-A. Rat allele-specific deletions were found at RT1-Bα76 and RT1-Dβ90–92. The mature RT1-Dβ polypeptide was one amino acid longer than HLA-DRB1 due to the position of the predicted signal peptide cleavage site. These data are important to a comprehensive understanding of MHC class II structure-function and for mechanistic studies of rat models of autoimmunity. |
| Starting Page | 585 |
| Ending Page | 596 |
| Page Count | 12 |
| File Format | |
| ISSN | 00937711 |
| Journal | Immunogenetics |
| Volume Number | 56 |
| Issue Number | 8 |
| e-ISSN | 14321211 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2004-10-23 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Rat MHC class II genes DNA sequences Polymorphism Autoimmunity |
| Content Type | Text |
| Resource Type | Article |
| Subject | Genetics Immunology |
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