Structure, orientation and stability of lysozyme confined in layered materials

Sébastien Balme*, Régis Guégan, Jean Marc Janot, Maguy Jaber, Mathilde Lepoitevin, Philippe Dejardin, Xavier Bourrat, Mikael Motelica-Heino

*この研究の対応する著者

研究成果: Article査読

40 被引用数 (Scopus)

抄録

The confinement of lysozyme in 3 layered materials based on montmorillonite and lamellar double hydroxides exhibiting different surface charges was studied. The protein structure and orientation in these materials were determined by X-ray diffraction, time resolved fluorescence and fluorescence anisotropy. For montmorillonite exchanged with sodium and modified with a non-ionic surfactant (tri-ethylene glycol mono n-decyl ether), the lysozyme was found to be located in the interlayer space with the "end-on" and "side-on" orientations, respectively. Conversely, no lysozyme intercalation was observed with a lamellar double hydroxide modified with an anionic surfactant (sodium octylsulfate), since the protein was adsorbed on the surface of the particles. Fourier transformed infrared spectroscopy analysis shows that lysozyme confinement in the interlayer space preserves its structure after dehydration, whereas some structural changes were observed for lysozyme adsorbed on the particle surface.

本文言語English
ページ(範囲)3188-3196
ページ数9
ジャーナルSoft Matter
9
11
DOI
出版ステータスPublished - 2013 3 21
外部発表はい

ASJC Scopus subject areas

  • 化学 (全般)
  • 凝縮系物理学

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