新型变异 c.122delG 在与 B3 现型相关的 ABO*B3.0x 基上
Yu Zhang1,2, Yating Ling1,2, Meng Li3
1Blood Group Reference Laboratory, Nanjing Red Cross Blood Center, Nanjing, China.
概括
研究人员发现了一种新的ABO亚群等位基,c.122delG,导致B3表型. 这种遗传变异导致中国人的B抗原混合场聚合.
科学领域:
- 遗传学 遗传学 是一个
- 免疫学 免疫学 免疫学
- 血型遗传学 血型遗传学
背景情况:
- B3亚型是一种罕见的 ABO 血型,其特点是混合场凝结.
- 在中国汉族人群中,B3和AB3亚型的患病率分别约为1/900和1/800.
研究的目的:
- 为了确定负责B3表型的新型遗传变异.
- 描述一个新发现的 ABO 亚基组等位体的分子基础.
主要方法:
- 使用传统的试管法进行血清学类型化.
- 通过SMRT测序对ABO基因进行基因定型.
主要成果:
- 在具有B3表型的个体的ABO基因中发现了一种新的c.122delG变异.
- 这种变异引入了一个过早的停止子,导致B抗原表达变化和混合场聚合.
结论:
- 在ABO*B3.0x等位基因中的c.122delG变异是中国人B3表型的新奇原因.
- 这一发现有助于了解 ABO 血型亚型及其血清学特征的遗传多样性.
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