Displacement statistics of unhindered single molecules show no enhanced diffusion in enzymatic reactions
Displacement statistics of unhindered single molecules show no enhanced diffusion in enzymatic reactions
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不受阻碍的单分子的位移统计显示酶反应中的扩散没有增强
DOI:
10.1101/2021.07.20.452795
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Ke Xu
中科院分区:
文献类型:
--
作者:
Alexander A Choi;Ha H. Park;Kun Chen;Rui Yan;Wan Li;Ke Xu
Recent studies have sparked heated debate over whether catalytical reactions would enhance the diffusion coefficients D of enzymes. Through high statistics of the transient (600 μs) displacements of unhindered single molecules freely diffusing in common buffers, we here quantify D for four highly contested enzymes under catalytic turnovers. We thus formulate how precisions of better than ±1% may be achieved for D at the 95% confidence level, and show no changes in diffusivity for catalase, urease, aldolase, and alkaline phosphatase under the application of wide concentration ranges of substrates. Our single-molecule approach thus overcomes potential limitations and artifacts underscored by recent studies to show no enhanced diffusion in enzymatic reactions. Table of Contents artwork
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影响因子:
3.4
作者:
Moerner WE;Shechtman Y;Wang Q
通讯作者:
Wang Q
DOI:
10.1101/645986
发表时间:
2019-05
期刊:
bioRxiv
影响因子:
--
作者:
Subhadip Ghosh;Farzad Mohajerani;S. Son;D. Velegol;P. Butler;Ayusman Sen
通讯作者:
Subhadip Ghosh;Farzad Mohajerani;S. Son;D. Velegol;P. Butler;Ayusman Sen
影响因子:
15
作者:
Muddana, Hari S.;Sengupta, Samudra;Mallouk, Thomas E.;Sen, Ayusman;Butler, Peter J.
通讯作者:
Butler, Peter J.
DOI:
--
发表时间:
2020
期刊:
ArXivorg
影响因子:
--
作者:
Xu, Mengqi;Rogers, W. Benjamin;Ahmed, Wylie W.;Ross, Jennifer L.
通讯作者:
Ross, Jennifer L.