Component analysis of nucleolar protein compartments using Xenopus laevis oocytes.

Component analysis of nucleolar protein compartments using Xenopus laevis oocytes.
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DOI:
10.1111/dgd.12794
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发表时间:
2022-08
期刊:
Development, growth & differentiation
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其他
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核仁是细胞核内的多室、非膜结合的细胞器。蛋白质的相分离能力会影响核仁的组装。非洲爪蟾卵母细胞含有数百个大的核仁,为其他系统中无法获得的核仁提供了实验途径。在这里,我们详细的方法来简化在体内分析的核仁蛋白质,被怀疑相分离的区室化。核仁是核糖体生物发生的主要枢纽,在这里,我们提出的数据支持蛋白质划分为核仁结构域的基础上,它们在核糖体生物发生的功能。我们还描述了使用活体染料,如Hoechst 33342和硫黄素T的核仁染色。此外,我们量化的核仁形态变化引起的热休克和放线菌素D治疗。我们建议这些方法将是有价值的各种研究,寻求更好地了解核仁,特别是那些关于相分离。这些方法也可能对其他相分离的研究,特别是在核中的相分离的指导。
The nucleolus is a multi‐compartment, non‐membrane‐bound organelle within the nucleus. Nucleolar assembly is influenced by proteins capable of phase separation. Xenopus laevis oocytes contain hundreds of large nucleoli that provide experimental access for nucleoli that is unavailable in other systems. Here we detail methods to streamline the in vivo analysis of the compartmentalization of nucleolar proteins that are suspected of phase separation. The nucleolus is the main hub of ribosome biogenesis and here we present data supporting the division of proteins into nucleolar domains based on their function in ribosome biogenesis. We also describe the use of vital dyes such as Hoechst 33342 and Thioflavin T in nucleolar staining. Additionally, we quantify nucleolar morphology changes induced by heat shock and actinomycin D treatments. We suggest these approaches will be valuable in a variety of studies that seek to better understand the nucleolus, particularly those regarding phase separation. These approaches may also be instructive for other studies on phase separation, especially in the nucleus.
核分离过程中的蛋白质损失。
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