2000
DOI: 10.4049/jimmunol.164.8.4408
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Fine Mapping ofIGAD1in IgA Deficiency and Common Variable Immunodeficiency: Identification and Characterization of Haplotypes Shared by Affected Members of 101 Multiple-Case Families

Abstract: To limit the region containing a mutation predisposing to selective IgA deficiency (IgAD) and common variable immunodeficiency (CVID), 554 informative members of 101 multiple-case families were haplotyped at the IGAD1 candidate locus in the MHC. Microsatellite markers were placed onto the physical map of IGAD1 to establish their order and permit rapid haplotype analyses. Linkage analysis of this extended family set provided additional support for a strong susceptibility locus at IGAD1 with a maximum multipoint… Show more

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Cited by 115 publications
(71 citation statements)
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“…It has been estimated that ϳ70% of the human haplotypes are conserved, extended haplotypes or recombinants of no more than two of them (17,32,33). It is generally accepted that a small number of these MHC conserved haplotypes are found in the majority of IgAD patients (5,7,8,10,11,13,19) and that these haplotypes share a susceptibility locus designated IGAD1. To track down this MHC susceptibility locus, most studies have either focused on the B8-DR3 haplotype (13,14) or looked for a shared feature between different haplotypes associated with the disease (8, 10 -12, 15, 18, 19).…”
Section: Discussionmentioning
confidence: 99%
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“…It has been estimated that ϳ70% of the human haplotypes are conserved, extended haplotypes or recombinants of no more than two of them (17,32,33). It is generally accepted that a small number of these MHC conserved haplotypes are found in the majority of IgAD patients (5,7,8,10,11,13,19) and that these haplotypes share a susceptibility locus designated IGAD1. To track down this MHC susceptibility locus, most studies have either focused on the B8-DR3 haplotype (13,14) or looked for a shared feature between different haplotypes associated with the disease (8, 10 -12, 15, 18, 19).…”
Section: Discussionmentioning
confidence: 99%
“…To track down this MHC susceptibility locus, most studies have either focused on the B8-DR3 haplotype (13,14) or looked for a shared feature between different haplotypes associated with the disease (8, 10 -12, 15, 18, 19). Conclusions from different groups map the susceptibility locus either to the telomeric class III region (8,(11)(12)(13)15) or to the telomeric class II region (10,18,19).…”
Section: Discussionmentioning
confidence: 99%
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“…3,6,7 The family material consisted of both single-(n=110) and multiple-case (n=101) pedigrees. Multiple-case families are shown at the Karolinska Institute's web page at http://www.cbt.ki.se/fam/set3-7/scan_set.html.…”
Section: Methodsmentioning
confidence: 99%