The Protein Journal

, Volume 36, Issue 2, pp 138–146 | Cite as

Trehalose and Magnesium Chloride Exert a Common Anti-amyloidogenic Effect Towards Hen Egg White Lysozyme

  • Rupsa Chatterjee
  • Vidyalatha Kolli
  • Nandini Sarkar


Many degenerative disorder such as Parkinsons, Alzheimers, Huntingtons disease, etc are caused due to the deposition of amyloid fibrils, formed due to the ordered aggregation of misfolded/unfolded proteins. Misfolded or unfolded proteins aggregate mostly through hydrophobic interactions which are unexposed in native state, but become exposed upon unfolding. To counteract amyloid related diseases, inhibition of the protein self assembly into fibril is a potential therapeutic strategy. The study aims at investigating the effect of selected compounds, namely trehalose and magnesium chloride hexahydrate towards inhibition and disaggregation of amyloid fibrils using Hen Egg White Lysozyme as a model. We further attempted to understand the mechanism of action with the help of various biophysical, microscopic as well as computational studies. A common mechanism of action was identified where the selected compounds exert their anti-amyloidogenic effects by altering HEWL conformations characterized by reduction in the beta sheet content and decrease in exposed hydrophobic surfaces. The altered conformation seems to have lesser amyloidogenic propensity leading to inhibition as well as disaggregation of amyloids.


Amyloidogenesis Hen egg white lysozyme Hydrophobic Circular dichroism Thioflavin T 



1-Anilinonaphthalene-8-sulphonic acid


Bovine serum albumin


Circular dichroism


Distilled deionised


Hen egg white lysozyme


Protein data bank


Phosphotungstic acid


Transmission electron microscope


Thioflavin T



The authors acknowledge the infrastructural facilities at NIT Rourkela. The fellowship provided to VK from DBT is also acknowledged.

Compliance with Ethical Standards

Conflict of interest

The authors declare that they have no conflicts of interest.

Ethical Approval

This article does not contain any studies with human participants or animals performed by any of the authors.


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Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  • Rupsa Chatterjee
    • 1
  • Vidyalatha Kolli
    • 1
  • Nandini Sarkar
    • 1
  1. 1.Department of Biotechnology and Medical EngineeringNational Institute of Technology RourkelaRourkelaIndia

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