在人类中,功能性新基因的起源来自"有希望的怪物"
Xiaoge Liu1, Chunfu Xiao1, Xinwei Xu1
1State Key Laboratory of Protein and Plant Gene Research, Laboratory of Bioinformatics and Genomic Medicine, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, China.
Wiley interdisciplinary reviews. RNA
|April 12, 2024
概括
新的蛋白质编码基因,称为de novo基因,起源于非编码DNA. 在人类中,这些基因来自具有先前存在的基因特征的区域,而不是完全新的基因位点,影响大脑发育和癌症.
科学领域:
- 基因组学就是基因组学.
- 分子生物学分子生物学
- 进化生物学 进化生物学
背景情况:
- 传统上,人们认为新基因仅从现有基因的修改中产生.
- 从非编码DNA中发现新的蛋白质编码基因挑战了这一点,暗示了一种新的蛋白质编码基因.
- 没有母亲的孤儿.
- 原产地过程.原产地过程.
- 然而,人类de novo基因表现出比纯粹复杂的起源更复杂的特征.
- 没有母亲的孤儿.
- 一个过程,一个过程.
研究的目的:
- 定义和描述人类的新基因.
- 阐明来自祖先非编码基因组区域的新基因的起源过程.
- 为了识别受欢迎的前体,或
- 有希望的怪物.
- ,用于新的基因起源.
- 讨论年轻的de novo基因在人类大脑发育和瘤发生中的功能意义.
主要方法:
- 对新基因起源的现有文献的审查.
- 对人类de novo基因的特征,基因组分布和表达特征的分析.
- 祖先非编码区域及其基因类前体的识别和表征.
主要成果:
- 人类de novo基因首选来自编码具有基因样特征的先行体的基因组区域.
- 新基因的基因组位置通常不是完全新的,而是来自具有祖先基因特性的区域.
- 新的基因在人类大脑发育中起着重要作用,并与瘤发生有关.
结论:
- 人类de novo基因的起源不是一个纯粹的遗传.
- 没有母亲的孤儿.
- 该过程涉及前体,但涉及具有先前存在的基因状特征的前体.
- 了解新的基因进化提供了对基因组可塑性和新功能出现的见解.
- 新的基因代表了基因创新的动态来源,对人类健康和疾病有影响.
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