High frequency of MIC null haplotype (HLA-B48-MICA-del-MICB*0107 N) in the Angaite Amerindian community in Paraguay

Immunogenetics. 2002 Sep;54(6):439-41. doi: 10.1007/s00251-002-0485-1. Epub 2002 Jul 16.

Abstract

We describe a high frequency of the MIC null haplotype, HLA-B48-MICA-del-MICB*0107 N, in the Angaite Amerindian community in Paraguay. Of the 16 unrelated subjects, 9 (56.5%) had this haplotype. The structural analyses revealed this haplotype was similar to the previously reported Asian haplotype in that they had a large-scale deletion including the entire MICA gene and linked to MICB*0107 N and HLA-B*48. The novel recombination haplotype between this MIC null haplotype and HLA-B15, HLA-B15-MICA-del-MICB*0107 N, was also found in this community.

MeSH terms

  • Base Sequence
  • DNA / genetics
  • Female
  • Gene Frequency
  • Genetic Linkage
  • HLA-B Antigens / genetics*
  • HLA-B15 Antigen
  • Haplotypes
  • Histocompatibility Antigens Class I / genetics*
  • Homozygote
  • Humans
  • Indians, South American / genetics*
  • Male
  • Paraguay
  • Pedigree
  • Recombination, Genetic
  • Sequence Deletion

Substances

  • HLA-B Antigens
  • HLA-B15 Antigen
  • Histocompatibility Antigens Class I
  • MHC class I-related chain A
  • MICB antigen
  • DNA