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Genes Immun. 2000;1(4):280-7.

The centromeric part of the human NK gene complex: linkage of LOX-1 and LY49L with the CD94/NKG2 region.

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  • 1Max-Planck-Institute for Molecular Genetics, Ihnestrasse 73, D-14195 Berlin, Germany.


The natural killer (NK) gene complex is a genomic region containing lectin-type receptor genes. We have established a contig of PAC and BAC clones comprising about 1 Mb of the centromeric part of the NK gene complex. This region extends from the LOX-1 gene, which encodes a receptor for oxidized LDL and was found within 100 kb telomeric of the STS marker D12S77, contains the CD94 and NKG2 NK receptor genes and reaches beyond D12S852 on the proximal side. In this part we have mapped the human LY49L gene, a homologue of the rodent Ly49 genes, which encode important MHC class I receptors for the regulation of NK cell activity in rodents. The LY49L gene is localized 100 to 200 kb centromeric of the NKG2 gene cluster and 300 to 400 kb telomeric of the STS marker D12S841. Genomic sequencing of the complete gene including promoter and intron sequences confirmed that the structure is similar to the mouse Ly49 genes. Screening of several cDNA libraries did not detect any transcripts of putative additional human LY49 genes. In addition, in the course of these studies several EST sequences were localized in the region, one immediately upstream of the LY49L gene.

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