Department of Immunology, Center of Immunomolecular Engineering, Innovation & Practice Base for Graduate Students Education, Zunyi Medical University, Zunyi, China.
Front Immunol. 2021 Sep 30;12:741408. doi: 10.3389/fimmu.2021.741408. eCollection 2021.
T-cell antigen receptors (TRs) in vertebrates can be divided into αβ or γδ, encoded by TRA/D, TRG, or TRB loci. TRs play a central role in mammal cellular immunity, which occurs by rearrangement of V, D, J, and C genes in the loci. The bat is the only mammal with flying ability and is considered the main host of zoonotic viruses, an important public health concern. However, at present, little is known about the composition of bat TR genes. Based on the whole genome sequence of the greater horseshoe bat () and referring to the TR/IG annotation rules formulated by the international ImMunoGeneTics information system (IMGT), we present a complete annotation of TRA/D, TRG, and TRB loci of . A total of 128 V segments, three D segments, 85 J segments, and 6 C segments were annotated and compared with other known mammalian data. The characteristics of the TR locus and germline genes of are analyzed.
脊椎动物的 T 细胞抗原受体 (TR) 可分为 αβ 或 γδ,由 TRA/D、TRG 或 TRB 基因座编码。TR 在哺乳动物细胞免疫中发挥核心作用,该免疫通过基因座中 V、D、J 和 C 基因的重排发生。蝙蝠是唯一具有飞行能力的哺乳动物,被认为是人畜共患病病毒的主要宿主,这是一个重要的公共卫生关注点。然而,目前对蝙蝠 TR 基因的组成知之甚少。基于大足蝠的全基因组序列,并参考国际免疫遗传学信息系统 (IMGT) 制定的 TR/IG 注释规则,我们对的 TRA/D、TRG 和 TRB 基因座进行了完整注释。共注释了 128 个 V 片段、3 个 D 片段、85 个 J 片段和 6 个 C 片段,并与其他已知的哺乳动物数据进行了比较。分析了的 TR 基因座和种系基因的特征。