在一只老鼠物种中的中体创新.
Craig W Gambogi1,2,3,4, Nootan Pandey1,2,3, Jennine M Dawicki-McKenna1,2,3
1Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, PA 19104.
bioRxiv : the preprint server for biology
|June 19, 2023
概括
小鼠物种Mus pahari表现出独特的中间体结构,其中一个染色体具有一个大,同质化的重复 (π-satB),它招募了丰富的CENP-B. 这种新型的中间体组合确保了细胞分裂期间的染色体分离.
科学领域:
- 遗传学 遗传学 是一个
- 分子生物学分子生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- 哺乳动物的中间体对细胞分裂期间忠实染色体分离至关重要.
- 中介质通常由快速演变的重复性DNA序列组成.
- 中心分子特异性基因素H3变体,CENP-A,核化了中心分子的身份.
结论:
- 马斯帕哈里独特的中间体结构,特别是 π-satB 变体,证明了中间体形成和功能的替代机制.
- 同一个基因组内的中间体的不同分子组成允许稳定的共存和高保真性分离.
- 这项研究提供了对中间体的进化可塑性及其在遗传遗传中的作用的见解.
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