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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
1993-3-23
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pubmed:databankReference | |
pubmed:abstractText |
Atlantic salmon (Salmo salar) cDNAs encoding the major histocompatibility complex (Mhc-Sasa) class II beta chain were isolated from a leucocyte library by a polymerase chain reaction (PCR) approach. Three different cDNAs (c144, c22, and c157) encoding the entire mature beta chain have been analyzed. Clone c144 differs from clone c157 in 12.6% of the nucleotides in the beta 1-encoding region. The corresponding differences between clones c144 and c22, and clones c22 and c157, are 10.3% and 5.2%, respectively. This variation is, at least in part, most likely attributable to allelism. The similarity indices between the highly conserved beta 2 domains from Atlantic salmon and corresponding sequences from humans (DQ beta), chicken (BL beta), carp (TLAII beta-1), and rainbow trout (O.M. No. 55) are 45%, 40%, 66%, and 97%, respectively. Variable residues in the beta 1 domains from Atlantic salmon correspond with polymorphic sites of beta 1 domains from higher vertebrates. The frequency of substitutions in the beta 1-encoding region exceeds that in the 3'-untranslated (UT) region with several folds, indicating extensive beta 1 polymorphism in Atlantic salmon.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
0093-7711
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
37
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
437-41
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:8436418-Amino Acid Sequence,
pubmed-meshheading:8436418-Animals,
pubmed-meshheading:8436418-Base Sequence,
pubmed-meshheading:8436418-Cloning, Molecular,
pubmed-meshheading:8436418-DNA,
pubmed-meshheading:8436418-Genes, MHC Class II,
pubmed-meshheading:8436418-Histocompatibility Antigens Class II,
pubmed-meshheading:8436418-Molecular Sequence Data,
pubmed-meshheading:8436418-Polymorphism, Genetic,
pubmed-meshheading:8436418-Salmon,
pubmed-meshheading:8436418-Sequence Alignment
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pubmed:year |
1993
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pubmed:articleTitle |
Cloning and sequence analysis of cDNAs encoding the MHC class II beta chain in Atlantic salmon (Salmo salar).
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pubmed:affiliation |
Center of Biotechnology, University of Bergen, Norway.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, Non-U.S. Gov't
|