In contrast to other stimulatory natural killer cell immunoglobulin-like receptor loci, several KIR2DS5 alleles predominate in African Americans.

In contrast to other stimulatory natural killer cell immunoglobulin-like receptor loci, several KIR2DS5 alleles predominate in African Americans.
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DOI:
10.1016/j.humimm.2009.04.028
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发表时间:
2009-09
期刊:
影响因子:
2.7
通讯作者:
Hurley, Carolyn Katovich
Hurley, Carolyn Katovich
中科院分区:
医学4区
文献类型:
--
作者:
Hou, LiHua;Chen, Minghua;Jiang, Bo;Kariyawasam, Kanthi;Ng, Jennifer;Hurley, Carolyn Katovich

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通过对覆盖大部分编码外显子的基因组DNA进行DNA测序,对100名随机非裔美国人携带的5个两结构域刺激KIR基因进行了表征。个体基因座的频率与在欧洲裔美国人中发现的频率相似,除了在非洲裔美国人中KIR2DS1的频率降低。在KIR2DS1(* 008)、KIR2DS2(* 006)、KIR2DS3(* 008)、KIR2DS4(* 006)、KIR2DS5(* 008)、KIR2DS6(* 006)、KIR2DS7(* 008)、KIR2DS7(* 006)、KIR2DS7(* 008)、KIR2DS7(* 006)、KIR2DS7(* 006)、KIR2DS7(* 006)、KIR2DS7(* 008)、KIR2DS7(* 006)、KIR2DS7(* 006)、KIR2DS7(* 008)、KIR2DS7(* 006)、KIR2DS7(* 008)、KIR2DS7(* 006)、KIR2DS7(* 008)、KIR2DS7(* 00(* 00104,* 00105,* 00106,* 004),KIR2DS4(* 00103,* 00104,* 009,* 011,* 012,* 013)和KIR2DS5(* 006,* 007,* 00801,* 00802,* 009)基因座。在每个位点的等位基因的分布是相似的,发现在欧洲裔美国人的人口,除了KIR2DS5。KIR2DS5在欧洲裔美国人中表现出单一等位基因;在非裔美国人中发现相同等位基因的频率降低(基因阳性个体的41%),伴有KIR2DS5 * 006(18%),KIR2DS5 * 007(26%)和其他6个等位基因(25%)。
The five two domain stimulatory KIR genes carried by 100 random African Americans were characterized by DNA sequencing of genomic DNA covering the majority of coding exons. The frequency of individual loci was similar to that found in European Americans with the exception of a reduced frequency for KIR2DS1 in African Americans. New alleles were identified at the KIR2DS1 (*008), KIR2DS2 (*006), KIR2DS3 (*00104, *00105, *00106, *004), KIR2DS4 (*00103, *00104, *009, *011, *012, *013), and KIR2DS5 (*006, *007, *00801, *00802, *009) loci. The distribution of alleles at each locus was similar to that found in a European American population except for KIR2DS5. KIR2DS5 exhibits a single allele in European Americans; the same allele is found at reduced frequency (41% of gene positive individuals) accompanied by KIR2DS5*006 (18%), KIR2DS5*007 (26%), and six other alleles (25%) in African Americans.
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