Discovery of two novel variants of KIR2DS5 reveals this gene to be a common component of human KIR 'B' haplotypes

C. Vilches, M. J. Pando, R. Rajalingam, C. M. Gardiner, P. Parham

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

The gene encoding the non-inhibitory receptor KIR2DS5 has so far been represented by a single cDNA sequence, NKAT9. A previous study by polymerase chain reaction using sequence-specific primers (PCR-SSP) failed to detect NKAT9 in genomic DNA of 52 donors, which suggested that KIR2DS5 could be a rare gene. Here, we have characterized two novel variants of KIR2DS5 that differ from NKAT9 by 8 and 10 nucleotide substitutions. The frequency of KIR2DS5 was then re-assessed by PCR-SSP using primers specific for conserved sequences of all three known KIR2DS5 variants. We found KIR2DS5 is not a rare gene, but one present in 26% of 34 donors representing the major ethnic groups. Like other non-inhibitory KIR, the distribution of KIR2DS5 is restricted to the 'B' subset of KIR-gene haplotypes. Transcription of the KIR2DS5 gene was studied by reverse transcriptase (RT)-PCR in natural killer (NK) cells from one donor and shown to follow the clonal distribution seen for most other KIR genes.

Original languageEnglish (US)
Pages (from-to)453-456
Number of pages4
JournalTissue Antigens
Volume56
Issue number5
DOIs
StatePublished - 2000
Externally publishedYes

Fingerprint

Haplotypes
Genes
Tissue Donors
Polymerase Chain Reaction
Conserved Sequence
Reverse Transcriptase Polymerase Chain Reaction
Ethnic Groups
Natural Killer Cells
Nucleotides
Complementary DNA
DNA

Keywords

  • Cell surface molecules
  • Human
  • KIR
  • NK cells

ASJC Scopus subject areas

  • Immunology
  • Cell Biology

Cite this

Discovery of two novel variants of KIR2DS5 reveals this gene to be a common component of human KIR 'B' haplotypes. / Vilches, C.; Pando, M. J.; Rajalingam, R.; Gardiner, C. M.; Parham, P.

In: Tissue Antigens, Vol. 56, No. 5, 2000, p. 453-456.

Research output: Contribution to journalArticle

Vilches, C. ; Pando, M. J. ; Rajalingam, R. ; Gardiner, C. M. ; Parham, P. / Discovery of two novel variants of KIR2DS5 reveals this gene to be a common component of human KIR 'B' haplotypes. In: Tissue Antigens. 2000 ; Vol. 56, No. 5. pp. 453-456.
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