NF-κB转录因子:它们的分布,家族扩张,结构保护和动物进化
Siphesihle Msweli1, Suresh B Pakala1,2, Khajamohiddin Syed1
1Department of Biochemistry and Microbiology, Faculty of Science, Agriculture and Engineering, University of Zululand, KwaDlangezwa 3886, South Africa.
International journal of molecular sciences
|September 28, 2024
概括
核因子卡帕B (NF-κB) 家族表现出多样化的动物分布和进化模式. 这项研究揭示了新的NF-κB结构,并追踪了从鱼类到哺乳动物的先天免疫的演变.
科学领域:
- 分子生物学分子生物学
- 进化生物学 进化生物学
- 基因组学就是基因组学.
背景情况:
- 核因子卡帕B (NF-κB) 转录因子家族调节关键的生物过程,如炎症和免疫力.
- NF-κB蛋白与DNA结合 (RHD-DBD) 和二元化 (RHD-DD) 子域共享一个保存的Rel同质域 (RHD).
- 关于NF-κB在动物物种中的分布,进化和结构性保护的信息有限.
研究的目的:
- 在动物中全面分析NF-κB家族蛋白质的分布,进化和结构保护.
- 为了确定新的NF-κB蛋白质结构和子域变异.
- 阐明NF-κB蛋白的进化起源和多样化及其在天生的免疫力中的作用.
主要方法:
- 在各种动物类型中对NF-κB家族蛋白质的生物信息分析.
- 对蛋白质大小,保存域 (RHD) 和子域 (RHD-DBD,RHD-DD) 的比较分析.
- 遗传学分析以推断进化关系和分歧时间.
主要成果:
- NF-κB蛋白在动物之间表现出明显的分布模式和尺寸和域/子域组成的变化.
- 发现了具有多个RHD-DBD和RHD-DD的新型NF-κB蛋白,其中一些是由子域重复引起的.
- 在脊椎动物中RelA/p65的独家存在表明,先天免疫源于鱼类,并通过脊椎动物类共同进化.
- NF-κB蛋白质的遗传学分类反映了动物分类学,证实了物种化后的结构性保护.
- 进化分析表明p50/p105和c-Rel在关节动物祖先中最早出现,其次是RelB,RelA和p52/p100.
结论:
- NF-κB家族蛋白质在动物王国的结构和分布上表现出显著的进化多样化.
- 这项研究为NF-κB信号传递的演变及其在脊椎动物天生的免疫力中的基本作用提供了新的见解.
- NF-κB蛋白质的结构性保存与动物的基因相对应,突出显示了在整个进化过程中保存的功能.
关键词:
在 NF-κBB 中.这是一个RHD RHD RHD.在RelA/p65中使用.在RelB上,RelB就是RelB.c- 轨道上的杆.进化 演化 演化 演化 演化 演化 演化 演化p50/p1055.p50/p1055.p50/p1055.p105.p105.p105.p105.p105.p105.p105.p105.p105.p105.p105.p105.p105.p105.p105.p105.p105.p105.p105.p105.p105.p105.p105.p105.p105.p105.p106.p107.p105.p107.p105.p105.p105.p105.p105.p106.p107.p107.p107.p107.p107.p107.p107.p107.p107.p107.p107.p107.p107.p107.p107.p107.p107.p107.p107.p107.p107.p107.p107.p107.p107.p107.p107.p107.p107.p107.p107.p107.p107.p107.p107.p107.p107.p107.p107.p107.p52/p100 其他相关概念视频
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