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HLA-DM基因研究进展 被引量:2

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摘要 HLA DM基因是 1 991年发现的人MHC Ⅱ类基因区的新成员 ,分为HLA DMA和HLA DMB两个区 ,分别编码HLA DMA分子和HLA DMB分子 ,共同组成HLA DM异二聚体分子。DM基因存在基因多态性 ,DMA和DMB等位基因分别有 4个和 5个 ,即DMA 0 1 0 1 0 1 0 4和DMB 0 1 0 1 0 1 0 5。绝大多数DM分子位于APC细胞的内体和溶酶体中 ,有少数DM分子位于朗罕氏细胞、B细胞及不成熟的树突状细胞等细胞的表面。DM分子可以促进占据抗原结合沟的稳定链 (invariantchain ,Iichain)的释放 ,使抗原肽能够与MHC Ⅱ类分子结合。
出处 《国外医学(免疫学分册)》 2004年第2期101-105,共5页 Foreign Medical Sciences(Section of Immunology Foreign Medical Sciences)
基金 安徽省教育厅重点科研项目 ( 2 0 0 2kj175ZD)
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同被引文献19

  • 1闵伟琪,王翠茹.北方汉族人群HLA-DM基因多态性的研究[J].中华内科杂志,2001,40(3):172-172. 被引量:1
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