KIR2DL5, a novel killer-cell receptor with a D0-D2 configuration of Ig-like domains

C Vilches, R Rajalingam, M Uhrberg, C M Gardiner, Neil Thomas Young, P Parham

Research output: Contribution to journalArticle

88 Citations (Scopus)

Abstract

Four novel killer-cell Ig-like receptor (KIR) genes were discovered by analysis of genomic DNA from a human donor. One gene, KIR2DL5, is expressed by subpopulations of NK cells and T cells, whereas expression of the other three genes could not be detected. KIR2DL5 has two extracellular Ig-like domains of the D0 and D2 type, a structural configuration that was previously unique to KIR2DL4. Although having a similar structure overall, the KIR2DL4 and KIR2DL5 receptors have distinctive amino acid sequences in the ligand-binding extracellular domains and differ in the transmembrane and cytoplasmic motifs that determine signal transduction. Whereas the KIR2DL4 gene is present on all KIR haplotypes and is expressed by all human NK cells, the KIR2DL5 gene is restricted to the "B" subset of KIR haplotypes and is clonally expressed by NK cells within an individual. Chimpanzee genes for KIR2DL4 and KIR2DL5 have been defined and are very similar in sequence to their human orthologs. The donor in whom KIR2DL5 was first detected bears two variants of it that differ by five nucleotide substitutions in the coding region. Although the substitutions are not predicted to affect gene expression, transcription of only one of the two KIR2DL5 variants could be detected.
Original languageEnglish
Pages (from-to)5797-5804
Number of pages8
JournalThe Journal of Immunology
Volume164
Issue number11
Publication statusPublished - 1 Jun 2000

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Natural Killer Cells
Genes
KIR2DL5 Receptor
KIR2DL4 Receptor
Haplotypes
B-Lymphocyte Subsets
Pan troglodytes
Immunoglobulin Domains
Amino Acid Sequence
Signal Transduction
Nucleotides
Ligands
T-Lymphocytes
Gene Expression
DNA

Keywords

  • Adult
  • Alternative Splicing
  • Amino Acid Sequence
  • Animals
  • Base Sequence
  • Cell Line, Transformed
  • Clone Cells
  • DNA, Complementary
  • Exons
  • Gene Expression Regulation
  • Haplotypes
  • Humans
  • Immunoglobulins
  • Killer Cells, Natural
  • Leukocytes, Mononuclear
  • Molecular Sequence Data
  • Pan troglodytes
  • Phylogeny
  • Protein Structure, Tertiary
  • RNA, Messenger
  • Receptors, Immunologic
  • Receptors, KIR
  • Receptors, KIR2DL4
  • Sequence Homology, Amino Acid
  • Sequence Homology, Nucleic Acid
  • T-Lymphocytes

Cite this

Vilches, C., Rajalingam, R., Uhrberg, M., Gardiner, C. M., Young, N. T., & Parham, P. (2000). KIR2DL5, a novel killer-cell receptor with a D0-D2 configuration of Ig-like domains. The Journal of Immunology, 164(11), 5797-5804.

KIR2DL5, a novel killer-cell receptor with a D0-D2 configuration of Ig-like domains. / Vilches, C; Rajalingam, R; Uhrberg, M; Gardiner, C M; Young, Neil Thomas; Parham, P.

In: The Journal of Immunology, Vol. 164, No. 11, 01.06.2000, p. 5797-5804.

Research output: Contribution to journalArticle

Vilches, C, Rajalingam, R, Uhrberg, M, Gardiner, CM, Young, NT & Parham, P 2000, 'KIR2DL5, a novel killer-cell receptor with a D0-D2 configuration of Ig-like domains', The Journal of Immunology, vol. 164, no. 11, pp. 5797-5804.
Vilches C, Rajalingam R, Uhrberg M, Gardiner CM, Young NT, Parham P. KIR2DL5, a novel killer-cell receptor with a D0-D2 configuration of Ig-like domains. The Journal of Immunology. 2000 Jun 1;164(11):5797-5804.
Vilches, C ; Rajalingam, R ; Uhrberg, M ; Gardiner, C M ; Young, Neil Thomas ; Parham, P. / KIR2DL5, a novel killer-cell receptor with a D0-D2 configuration of Ig-like domains. In: The Journal of Immunology. 2000 ; Vol. 164, No. 11. pp. 5797-5804.
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AB - Four novel killer-cell Ig-like receptor (KIR) genes were discovered by analysis of genomic DNA from a human donor. One gene, KIR2DL5, is expressed by subpopulations of NK cells and T cells, whereas expression of the other three genes could not be detected. KIR2DL5 has two extracellular Ig-like domains of the D0 and D2 type, a structural configuration that was previously unique to KIR2DL4. Although having a similar structure overall, the KIR2DL4 and KIR2DL5 receptors have distinctive amino acid sequences in the ligand-binding extracellular domains and differ in the transmembrane and cytoplasmic motifs that determine signal transduction. Whereas the KIR2DL4 gene is present on all KIR haplotypes and is expressed by all human NK cells, the KIR2DL5 gene is restricted to the "B" subset of KIR haplotypes and is clonally expressed by NK cells within an individual. Chimpanzee genes for KIR2DL4 and KIR2DL5 have been defined and are very similar in sequence to their human orthologs. The donor in whom KIR2DL5 was first detected bears two variants of it that differ by five nucleotide substitutions in the coding region. Although the substitutions are not predicted to affect gene expression, transcription of only one of the two KIR2DL5 variants could be detected.

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KW - Exons

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