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pH 值和表面活性剂对蛋白质的影响:理论和实验的视角。

Effect of pH and surfactant on the protein: A perspective from theory and experiments.

机构信息

Polymer Science &Technology, Council of Scientific and Industrial Research (CSIR) - Central Leather Research Institute (CLRI), Chennai 600020, India.

Polymer Science &Technology, Council of Scientific and Industrial Research (CSIR) - Central Leather Research Institute (CLRI), Chennai 600020, India; Chemical Science, Academy of Scientific and Innovative Research (AcSIR), New Delhi, 110001, India.

出版信息

Int J Biol Macromol. 2018 Feb;107(Pt B):1519-1527. doi: 10.1016/j.ijbiomac.2017.10.019. Epub 2017 Oct 10.

Abstract

In the present study, we are aimed to explore the bovine serum albumin (BSA) and sodium dodecyl sulfate (SDS) the interaction that can readily show the consequence of the change in concentration of protein with surfactants' various concentration and the different pH's, 4.0, 4.7, 7.0 of the medium through the many spectroscopic techniques. The BSA and SDS denaturation fully influenced by the pH. The results interpreted in terms of electrostatic and hydrophobic contributions to the stability of different phases formed in the system. Critical Micelle Concentration (CMC) of surfactant is influenced the protein folding and unfolding. The molecular docking supports the experiment data. This study demonstrates that the above and below the CMC of surfactant can significantly alter the binding interaction with the protein.

摘要

在本研究中,我们旨在通过多种光谱技术研究牛血清白蛋白(BSA)和十二烷基硫酸钠(SDS)之间的相互作用,该相互作用可以很好地显示蛋白质浓度随表面活性剂浓度和不同 pH 值(4.0、4.7、7.0)变化的结果。BSA 和 SDS 的变性完全受 pH 值的影响。结果根据静电和疏水作用解释了在该体系中形成的不同相的稳定性。表面活性剂的临界胶束浓度(CMC)影响蛋白质的折叠和展开。分子对接支持实验数据。本研究表明,表面活性剂的 CMC 上下可以显著改变与蛋白质的结合相互作用。

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