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Title: Importance of HLA-DRB1 and DQA1 genes and of the amino acid polymorphisms in the functional domain of DR beta 1 chain in multiple sclerosis
Authors: Ghabanbasani, M Z ×
Gu, X X
Spaepen, Marijke
Vandevyver, Caroline
Raus, J
Marynen, Peter
Carton, Herwig
Cassiman, Jean-Jacques #
Issue Date: Aug-1995
Series Title: Journal of neuroimmunology. vol:59 issue:1-2 pages:77-82
Abstract: The association of some HLA class II alleles with multiple sclerosis (MS) has been amply documented. In the present study the role of HLA class II haplotypes and genotypes and of polymorphic amino acids at the DR beta 1 locus, located in the antigen binding groove and the CD4 binding domain of the DR beta 1 chain, were studied in 78 unrelated Caucasian chronic progressive MS (CP MS) patients and 204 controls. The results confirmed the positive association of the DRB1*1501 allele and through linkage also of the DRB1*1501-DQA1*0102 haplotype with MS. In addition, the results showed that the DRB1*1501/DRB1*0400 or DR beta 1Ala71+ His13+ genotype conferred the highest relative risk for MS (RR = 9.14). Alleles encoding for DR beta 1Phe47+, DR beta 1Asp70+ and DR beta 1Thr140+, DQ alpha 1Phe25+, DQ alpha 1Leu69+ residues were protective and the highest protection (RR = 0.24) was provided by the DR beta 1(Phe47+)-DQ alpha 1Phe25+ and DR beta 1(Ser13+)-DQ alpha 1Phe25+ haplotypes. Our results suggest that both DQ and DR alpha beta heterodimers might contribute to the increased or decreased risk to develop MS by the shape of their antigen-binding groove.
ISSN: 0165-5728
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Genetics Section (-)
Faculty of Medicine - miscellaneous
Human Mutations and Polymorphisms Section (-)
Forensic Biomedical Sciences
Department of Human Genetics - miscellaneous
× corresponding author
# (joint) last author

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