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首页> 外文期刊>Trends in immunology >Evolutionary constraints on CD1 structure: insights from comparative genomic analysis.
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Evolutionary constraints on CD1 structure: insights from comparative genomic analysis.

机译:CD1结构的进化限制:比较基因组分析的见解。

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摘要

It is well established that the CD1 family of proteins present lipid antigens to T cells. However, in vivo studies of CD1 function have been carried out almost exclusively using mouse models, despite the fact that mice lack most of the CD1 genes that are found in humans and other mammals. To understand why there is a difference in the number of CD1 genes observed between humans and mice, we used comparative genomic analysis to examine differences at the CD1 locus. This analysis reveals a significant genomic deletion in mice that provides a probable explanation for the disparity. Furthermore, we propose a hypothesis in which functionally convergent evolution could have a role in at least partially compensating for the loss of certain CD1 isoforms during the course of mammalian evolution.
机译:众所周知,CD1蛋白家族将脂质抗原呈递给T细胞。然而,尽管小鼠缺乏在人类和其他哺乳动物中发现的大多数CD1基因,但几乎仅使用小鼠模型进行了CD1功能的体内研究。为了了解为什么人类和小鼠之间观察到的CD1基因数量上存在差异,我们使用比较基因组分析来检查CD1基因座上的差异。该分析揭示了小鼠中显着的基因组缺失,这为差异提供了可能的解释。此外,我们提出了一个假设,其中功能趋同进化可能在哺乳动物进化过程中至少部分补偿某些CD1亚型的丧失中发挥作用。

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