索洛林是WAPL的一个进化保守的对手
Ignacio Prusén Mota1,2,3, Marta Galova4, Alexander Schleiffer4
1Max Perutz Labs, Vienna Biocenter Campus (VBC), Vienna, Austria.
Nature communications
|June 3, 2024
概括
索洛林对抗WAPL以保护凝聚素,这对染色体分离和DNA修复至关重要. 这项研究在酵母和植物中发现SORORIN,揭示了它在体内保存和组织特异性的作用.
科学领域:
- 细胞生物学 细胞生物学
- 遗传学 遗传学 是一个
- 植物生物学 植物生物学
背景情况:
- 凝聚素对于染色体分离和DNA修复至关重要.
- WAPL (分开翅膀的类似蛋白质) 将染色体中的凝聚素去除.
- 索洛林曾被提议用于保护凝聚素免受WAPL的侵害,但缺乏体内证据,并且仅在动物中已知.
研究的目的:
- 为了研究SORORIN的体内功能和进化保存.
- 为SORORIN和WAPL之间的对抗关系提供证据.
- 探索SORORIN在非动物生物中的作用.
主要方法:
- 在酵母 (Schizosaccharomyces pombe) 和植物 (Arabidopsis thaliana) 中识别SORORIN的正方体.
- 对sor1Δ和Atsororin突变菌株的凝聚力缺陷的分析.
- 对具有wpl1Δ.的双重突变的遗传分析.
主要成果:
- 确定了SORORIN的正方体 (酵母中的Sor1,植物中的AtSORIN).
- 酵母突变 (sor1Δ) 显示了凝聚力缺陷,部分由wpl1Δ.
- 阿拉比多普西斯突变体 (Atsororin) 呈现化,组织特异性凝聚力缺陷,染色体错误分离,不育性,以及在介质变异I过程中过早分离姐妹染色体.
结论:
- 提供了体内证据表明SORORIN对抗WAPL,证实了它在保护凝聚力的作用.
- 证明SORORIN在动物王国之外得到保护.
- 揭示了SORORIN在植物中获得了组织特异性功能,影响了体和介质过程.
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