Amyloid fibrillation of hen egg-white lysozyme is inhibited by TCEP

Biochem Biophys Res Commun. 2009 Apr 17;381(4):639-42. doi: 10.1016/j.bbrc.2009.02.103. Epub 2009 Feb 25.

Abstract

This work examines the inhibitory effect of TCEP on the in vitro fibrillation of hen lysozyme at pH 2. We demonstrate that the inhibition of hen lysozyme fibrillation by TCEP follows a dose-dependent manner. Our data show that the addition of TCEP prevents alpha-to-beta transition and promoted unfolding of lysozyme. Moreover, our findings suggested that the TCEP-induced attenuated fibrillation is associated with disulfide disruption and structural unfolding of HEWL.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amyloid / antagonists & inhibitors*
  • Amyloid / chemistry
  • Amyloid / metabolism
  • Animals
  • Hydrogen-Ion Concentration
  • Microscopy, Electron
  • Muramidase / chemistry
  • Muramidase / metabolism*
  • Phosphines / chemistry
  • Phosphines / pharmacology*
  • Protein Structure, Secondary / drug effects

Substances

  • Amyloid
  • Phosphines
  • tris(2-carboxyethyl)phosphine
  • hen egg lysozyme
  • Muramidase