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Protein Dynamics in Living Cells01:19

Protein Dynamics in Living Cells

Different fluorescence-based techniques are used to study the protein dynamics in living cells. These techniques include FRAP, FRET, and PET.
Fluorescent recovery after photobleaching (FRAP) is a fluorescent-protein-based detection technique used to quantify protein movement rates within the cell. This method exposes a small portion of the cell to an intense laser beam. The laser beam causes permanent photobleaching of the fluorophore-tagged proteins in the exposed region. As the bleached...

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相关实验视频

Updated: Jul 8, 2026

Quantitative Live Cell Fluorescence-microscopy Analysis of Fission Yeast
06:52

Quantitative Live Cell Fluorescence-microscopy Analysis of Fission Yeast

Published on: January 23, 2012

分子定位和细胞内光度分析.

A W POLLISTER, H H SWIFT

    Science (New York, N.Y.)
    |January 20, 1950
    PubMed
    概括

    提供了对Dowex 50阴离子交换树脂来源的澄清. 结果因供应商而异,微化学特种公司的早期样本比后来的道化工公司批量产生更好的结果.

    科学领域:

    • 生物化学 生物化学
    • 分析化学 分析化学

    背景情况:

    • 之前的一项研究使用了阴离子交换树脂Dowex 50进行蛋白质混合物分析.
    • 树脂的来源在原始出版物的脚注中被含糊地报告.

    研究的目的:

    • 为了澄清先前染色学分析中使用的Dowex 50阴离子交换树脂的确切来源.
    • 报告来自不同供应商的树脂样本之间的性能差异.

    主要方法:

    • 调查Dowex 50树脂的采购细节.
    • 对比使用微化学特种公司的树脂获得的实验结果与道化工公司.

    主要成果:

    • 杜威克斯50树脂是在1949年2月从微化学特种公司 (作为Ion-X) 采购的.
    • 1949年8月从道化工公司获得的多韦克斯50 (批量24427) 随后的样本没有产生令人满意的结果.

    结论:

    • 特定的阴离子交换树脂供应商可以显著影响实验结果.
    • 准确的采购信息对于科学研究中的可重复性至关重要.
    关键词:
    这些分子是分子.

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