Effects of lyotropic anions on thermodynamic stability and dynamics of horse cytochrome c
Biophysical Chemistry, ISSN: 0301-4622, Vol: 240, Page: 88-97
2018
- 3Citations
- 4Captures
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Metrics Details
- Citations3
- Citation Indexes3
- CrossRef2
- Captures4
- Readers4
Article Description
This paper evaluates the effect of various lyotropic anions (chloride, sulfate, perchlorate, iodide, nitrate, bromide) on the thermodynamic stability and dynamics of native cytochrome c (Cyt c ) at pH 7.0. The results of equilibrium and kinetic studies revealed that: (i) at low to intermediate concentrations (≤ 0.5 M), both chaotropic and kosmotropic anions restrict the dynamics of native protein, (ii) at relatively higher concentrations (≥ 1.0 M), the denaturing effect of chaotropic anions dominates, which increases the level of structural-fluctuations responsible to unfold the protein according to Hofmeister series (perchlorate > iodide > nitrate > bromide), and (iii) the lyotropic anions affect the thermal and global stability of Cyt c according to Hofmeister series. The m -value was determined from ΔΔ G vs [Cosolute] plot and was found to be positive for sulfate and negative for other anions consistent with effect of lyotopic anions on protein stability according to Hofmeister series.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0301462218300875; http://dx.doi.org/10.1016/j.bpc.2018.06.003; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85048878197&origin=inward; http://www.ncbi.nlm.nih.gov/pubmed/29957358; https://linkinghub.elsevier.com/retrieve/pii/S0301462218300875; https://dx.doi.org/10.1016/j.bpc.2018.06.003
Elsevier BV
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