Thirty allele-level haplotypes centered around KIR2DL5 define the diversity in an African American population.
KIR2DL5 alleles were physically linked to alleles at adjacent KIR loci to define this region of KIR haplotypes in 55 gene-positive random African Americans. The majority carried KIR2DL5B. Three KIR2DL5A and six KIR2DL5B alleles that have been previously described and 11 novel KIR2DL5 alleles were identified by DNA sequencing. Novel alleles included variation that may impact promoter activity; two alleles carried nonsynonymous coding region variation. Based on linkage with KIR2DS1, KIR2DS3, KIR2DS5, KIR2DL2, KIR2DL3, and KIR3DS1 alleles, seven haplotypes of KIR2DL5A and 23 haplotypes of KIR2DL5B were observed. The phylogenetic relationships among the KIR2DL5 alleles predicted their association with either KIR2DS3 (six alleles) or KIR2DS5 (seven alleles). All of the KIR2DL5A alleles were linked either to KIR3DS1*01301 or KIR3DS1*049N. The majority of the KIR2DL5B alleles were linked to seven KIR2DL2 alleles; two were linked to a novel allele of KIR2DL3. These findings underscore the diversity of KIR haplotypes present in this population.
Hou
Lihua
L
Department of Pediatrics, Georgetown University Medical Center, Washington, DC 20057, USA.
Chen
Minghua
M
Jiang
Bo
B
Wu
DongYing
D
Ng
Jennifer
J
Hurley
Carolyn Katovich
CK
D001741:Black or African American / Q000235:genetics*; D000483:Alleles; D001483:Base Sequence; D017931:DNA Primers / Q000235:genetics; D008040:Genetic Linkage; D014644:Genetic Variation; D006239:Haplotypes; D006801:Humans; D010802:Phylogeny; D054340:Receptors, KIR / Q000235:genetics; D054343:Receptors, KIR2DL2 / Q000235:genetics; D054344:Receptors, KIR2DL3 / Q000235:genetics; D054346:Receptors, KIR2DL5 / Q000235:genetics*; D012689:Sequence Homology, Nucleic Acid
D017931:DNA Primers; C515077:KIR2DL2 protein, human; C515078:KIR2DL3 protein, human; C515080:KIR2DL5A protein, human; C515081:KIR2DL5B protein, human; D054340:Receptors, KIR; D054343:Receptors, KIR2DL2; D054344:Receptors, KIR2DL3; D054346:Receptors, KIR2DL5