Variation within the human killer cell immunoglobulin-like receptor (KIR) gene family

Makoto Yawata, Nobuyo Yawata, Laurent Abi-Rached, Peter Parham

Research output: Contribution to journalReview article

122 Citations (Scopus)

Abstract

The killer cell immunoglobulin-like receptors (KIR) form a family of highly homologous immune receptors that regulate the response of natural killer (NK) cells and some T cells. The genetics of the human KIR family is reviewed in this article. In human populations, diversity in KIR genotype arises from variations in gene content and allelic polymorphism. Comparisons of 81 human KIR sequences reveal past events of gene duplication and recombination, and indicate that individual KIR genes have diversified from the influence of natural selection. Comparison and compilation of population studies reveal extensive KIR genotype variability within human populations and among them. Genomic analysis shows the KIR genes to be close to each other and separated by homologous sequences that promote haplotype diversification through assymetric recombination. In contrast, homologous recombination appears favored at a unique sequence in the center of the KIR locus, and much haplotypic diversity can be explained by recombination between a limited number of gene-content motifs in the centromeric and telomeric halves of the locus. The importance of NK cells for early defenses against infection suggests that human KIR genotype diversity is the accumulated consequence of a history of numerous and successive selective episodes by different pathogens on human NK-cell responses.

Original languageEnglish
Pages (from-to)463-482
Number of pages20
JournalCritical Reviews in Immunology
Volume22
Issue number5-6
Publication statusPublished - Dec 1 2002
Externally publishedYes

Fingerprint

KIR Receptors
Genes
Natural Killer Cells
Genetic Recombination
Genotype
Population
Gene Duplication
Genetic Selection
Homologous Recombination
Medical Genetics
Sequence Homology
Haplotypes
T-Lymphocytes

All Science Journal Classification (ASJC) codes

  • Immunology
  • Medicine(all)

Cite this

Variation within the human killer cell immunoglobulin-like receptor (KIR) gene family. / Yawata, Makoto; Yawata, Nobuyo; Abi-Rached, Laurent; Parham, Peter.

In: Critical Reviews in Immunology, Vol. 22, No. 5-6, 01.12.2002, p. 463-482.

Research output: Contribution to journalReview article

Yawata, Makoto ; Yawata, Nobuyo ; Abi-Rached, Laurent ; Parham, Peter. / Variation within the human killer cell immunoglobulin-like receptor (KIR) gene family. In: Critical Reviews in Immunology. 2002 ; Vol. 22, No. 5-6. pp. 463-482.
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