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Iris A Halfpenny

Publications and source records attributed to Iris A Halfpenny.

3 recordsLinked to original sources

KIR genes.

This review updates the on-going investigations into KIR genes and their alleles with the main emphasis on what has taken place in this laboratory over the last 3 years.

Alleles↗

Investigation of killer cell immunoglobulin-like receptor gene diversity: IV. KIR3DL1/S1.

The polymorphic nature of the KIR3DL1/S1 gene complex has been investigated through the development of a polymerase chain reaction-sequence-specific oligonucleotide probes (PCR-SSOP) allele typing system. The KIR3DL1/S1 system was applied to a healthy group of Northern Irish individuals to establish allele frequencies within this Caucasian population. Additionally, cell line DNA and CEPH families, both from the 13th International Histocompatibility Workshop, and local families have been investigated. The generated data emphasize the complexity and highly polymorphic nature of this KIR gene complex; 11 allelic variations were identified, 2 of which are novel to this study. Use of the PCR-SSOP system has confirmed the presence of multiple copies of KIR3DL1/S1 alleles in a number of individuals.

Alleles↗

Multiple copies of KIR 3DL/S1 and KIR 2DL4 genes identified in a number of individuals.

Multiple copies of the killer immunoglobulin-like receptor gene, 3DL/S1, have been identified in certain individuals. Additionally, allele determination of the killer immunoglobulin-like receptor gene (KIR), 2DL4, has identified three alleles of this gene present in these same individuals. This event has been confirmed by isolating three distinct KIR2DL4 allele clones in each individual, which sequenced as the alleles identified by the allele identification technique. It is our assumption that an unequal crossover event has occurred between differing KIR haplotypes resulting in the duplication of the 2DL4, 3DS1/3DL1 genes on the newly formed haplotype(s).

Alleles↗