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三、人类白细胞抗原(HLA)系统 HLA是迄今发现的最复杂的一个人类遗传多态性系统,具有种族的差异。例如HLA-AW36、AW43、BW42等几乎只见于黑人,又称“黑人抗原”:BW46、BW54称“黄种人抗原”;BW41、BW21几乎仅为白种人所具有等。HLA频率还有地理分布差异,可提供人类迁移与混杂信息。如欧洲白种人中,A1-B8与A3-B7单倍型频率从北欧向中
Third, the human leukocyte antigen (HLA) system HLA is by far the most complex discovery of a human genetic polymorphism system, with ethnic differences. For example, HLA-AW36, AW43, BW42, etc. are only found in blacks, also known as “black antigens”: BW46, BW54 called “yellow human antigen”; BW41, BW21 Almost only for Caucasians have. There are also geographical differences in HLA frequencies that provide information on human migration and confusion. As in European Caucasians, A1-B8 and A3-B7 haplotype frequencies range from Northern Europe to Middle