Anion-Dependent Modulation of Cytochrome c Structural Dynamics in Bmim-Based Ionic Liquid-Water Systems.
Shalini Yadav1, Arnab Sil1, Renu Bhati1
1Department of Chemistry, School of Natural Sciences, Shiv Nadar Institution of Eminence, Delhi NCR, Gautam Buddha Nagar, Greater Noida, Uttar Pradesh 201314, India.
Ionic liquids impact protein stability. [BmimAcO-water] best preserved cytochrome c structure, while [BmimPF6-water] caused the most destabilization, highlighting ionic liquid composition
Area of Science:
- Biochemistry
- Materials Science
- Computational Chemistry
Background:
- Ionic liquids (ILs) offer unique solvent properties for biomolecules.
- Understanding IL effects on protein stability is crucial for applications like biocatalysis and protein preservation.
Purpose of the Study:
- To investigate the impact of three Bmim-based ionic liquid-water systems ([BmimAcO-water], [BmimDCA-water], [BmimPF6-water]) on cytochrome c (Cyt-C) stability.
- To determine the most suitable IL-water system for preserving Cyt-C structure.
Main Methods:
- Utilized molecular simulation tools to systematically analyze Cyt-C stability.
- Compared structural stability metrics across different IL-water compositions.
Main Results:
- [BmimAcO-water] demonstrated the highest structural preservation of Cyt-C.
- [BmimPF6-water] induced the most significant destabilization, especially near the heme cofactor.
- [BmimDCA-water] exhibited intermediate stability effects.
Conclusions:
- The composition of ionic liquids significantly influences protein structure and dynamics.
- [BmimAcO-water] is a promising solvent for maintaining cytochrome c stability.
- Ionic liquid choice is critical for effective protein preservation and biocatalysis.
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