Linkage disequilibrium between HLA-DPB1 alleles and retinoid X receptor β haplotypes

Ricardo Rajsbaum, Dolores Fici, Deborah A. Boggs, Patricia A. Fraser, Pedro O. Flores-Villanueva, Zuheir L. Awdeh

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


The human retinoid X receptor β (RXRB) gene maps to the major histocompatibility complex (MHC) region, between KE4 and COL11A2, approximately 130-kb centromeric to HLA-DPB1. We have recently reported a new polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method to detect the G to T single nucleotide polymorphism (SNP) located seven nucleotides after the tenth exon of the RXRB gene, or 3′end+7 position according to existing nomenclature. We also reported strong linkage disequilibrium between the HLA-DPB1*0401 and RXRB+7*T alleles. In the present study, we describe two PCR-RFLP methods to detect additional SNPs in the RXRB gene, T to A, at exon10+378 and A to T at 3′end+140. This new methodology permitted the unambiguous assignment of three distinct SNPs at RXRB exon10+378, 3′end+7 and 3′end+140 to form an "RXRB haplotype." The data generated from this study were used to determine linkage disequilibrium between several MHC markers and the RXRB alleles and haplotypes. Family studies revealed significant linkage disequilibrium between the RXRB alleles and a number of HLA-DPB1 alleles.

Original languageEnglish (US)
Pages (from-to)771-778
Number of pages8
JournalHuman Immunology
Issue number9
StatePublished - Sep 2002
Externally publishedYes


  • HLA-DPB1
  • Linkage disequilibrium
  • Polymorphism
  • Retinoid X receptor
  • SNP

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology


Dive into the research topics of 'Linkage disequilibrium between HLA-DPB1 alleles and retinoid X receptor β haplotypes'. Together they form a unique fingerprint.

Cite this