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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
|
pubmed:dateCreated |
1993-7-30
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pubmed:databankReference | |
pubmed:abstractText |
Two genes encoding HLA-B60 or HLA-B61 were cloned from Japanese and the exons of their genes were sequenced. One silent mutation was observed at the exon 1 between HLA-B60 (B*40012) and B*40011. Seven nucleotide substitutions were seen at the exon 3 between HLA-B61 (B*4006) and B*4002. Three substitutions at codon 95, CTC in B*4002 to TGG in B*4006, changed Leu in B*4002 to Trp in B*4006, while two substitutions at codon 97, AGC in B*4002 and ACG in B*4006, changed Ser in B*4002 to Thr in B*4006. Since B*4002 shares the epitope of alloantibodies specific for HLA-B61, two HLA-B61 subtypes are discriminated by two amino acid substitutions at residues 95 and 97. B*40012 and B*4006 differ by four amino acid substitutions on the beta sheet and five amino acid substitutions on the alpha 2 helix. Since the residues at the beta sheet seem hardly to affect the binding of alloantibody, it is suspected that the residues on the alpha 2 helix provide epitopes for alloantibodies that discriminate allospecificity between HLA-B60 and HLA-B61.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Mar
|
pubmed:issn |
0198-8859
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
36
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pubmed:geneSymbol |
HLA-B,
HLA-B*40012,
HLA-B*4006
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pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
193-8
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pubmed:dateRevised |
2011-11-17
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pubmed:meshHeading |
pubmed-meshheading:7686546-Amino Acid Sequence,
pubmed-meshheading:7686546-Base Sequence,
pubmed-meshheading:7686546-Cloning, Molecular,
pubmed-meshheading:7686546-Cytotoxicity Tests, Immunologic,
pubmed-meshheading:7686546-DNA Mutational Analysis,
pubmed-meshheading:7686546-Epitopes,
pubmed-meshheading:7686546-Genes, MHC Class II,
pubmed-meshheading:7686546-HLA-B Antigens,
pubmed-meshheading:7686546-HLA-B40 Antigen,
pubmed-meshheading:7686546-Humans,
pubmed-meshheading:7686546-Models, Molecular,
pubmed-meshheading:7686546-Molecular Sequence Data,
pubmed-meshheading:7686546-Protein Conformation,
pubmed-meshheading:7686546-Sequence Homology
|
pubmed:year |
1993
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pubmed:articleTitle |
Structural analysis of HLA-B40 epitopes.
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pubmed:affiliation |
Department of Tumor Biology and Immunology, University of Tokyo, Japan.
|
pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, Non-U.S. Gov't
|