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哺乳动物中伪基因相关 lncRNA 基因的增强功能潜力
Ze-Hao Zhang1, Bo-Han Li1, Yin-Wei Wang1
1Hubei Hongshan Laboratory, Hubei Key Laboratory of Metabolic Abnormalities and Vascular Aging, Hubei Key Laboratory of Agricultural Bioinformatics, College of Life Science and Technology, College of Biomedicine and Health, Interdisciplinary Sciences Institute, Huazhong Agricultural University, Wuhan 430070, China.
Genomics, proteomics & bioinformatics
|November 24, 2025
概括
伪基因曾经被认为是非功能性基因,可产生功能性的长非编码RNA (lncRNA) 基因. 这些伪基因相关的lncRNAs显示了增强的蛋白质结合,并与衰老有关.
科学领域:
- 基因组学就是基因组学.
- 分子生物学分子生物学
- 生物信息学是一种生物信息学.
背景情况:
- 长非编码RNAs (lncRNAs) 由于验证挑战,其功能意义不明.
- 伪基因,以前被认为是基因组遗留物,现在越来越多地被认为是新型功能基因的潜在来源.
研究的目的:
- 在多种物种中系统地识别和表征伪基因相关的lncRNA基因.
- 研究这些伪基衍生 lncRNAs 的功能属性和进化保存.
- 探索伪基因相关 lncRNAs 在基因调节和衰老中的作用.
主要方法:
- 利用PacBio长读测序和公开的RNA-seq数据对八种物种进行识别.
- 进行了伪基相关和非伪基相关 lncRNAs 之间的功能属性的比较分析.
- 在人类和小鼠组织中进行了跨物种表达特征分析,以评估衰老中的作用.
主要成果:
- 与非伪基相关的 lncRNA 相比,鉴定了伪基相关的 lncRNA 基因,具有明显增强的功能属性.
- 在伪基因相关 lncRNAs,特别是感觉 lncRNAs 中表现出蛋白质结合能力,可调节基因表达.
- 揭示了基因表达调节和DNA修复中的保留作用,以及对与衰老相关的转录组变化的突出贡献.
结论:
- 伪基因相关的lncRNA基因具有增强的功能能力,而不仅仅是基因组遗迹.
- 这些lncRNAs在必要的细胞过程中起着保留的作用,并且与衰老的转录组密切相关.
- 这项研究强调伪基因是功能性lncRNAs进化的重要来源.
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