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主要组织相容性抗原是一种分布在细胞表面,并具有种系特异性的抗原蛋白,用以将细胞内加工过的肽段提呈到细胞表面,以激活免疫细胞,在移植器官的排斥反应、抗感染和抗肿瘤当中起重要作用。
The major histocompatibility antigen is a germline-specific antigenic protein distributed on the cell surface to present intracellularly processed peptides to the cell surface to activate immune cells that are rejected in transplanted organs Response, anti-infective and anti-tumor play an important role.