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  Quantification of thermal motions in the purple membrane

Lehnert, U., Reat, V., Kessler, B., Oesterhelt, D., & Zaccai, G. (2002). Quantification of thermal motions in the purple membrane. Applied Physics A-Materials Science & Processing, 74(Suppl. S), S1287-S1289.

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Genre: Journal Article
Alternative Title : Appl. Phys. A-Mater. Sci. Process.

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 Creators:
Lehnert, U.1, Author           
Reat, V., Author
Kessler, B.1, Author           
Oesterhelt, D.2, Author           
Zaccai, G., Author
Affiliations:
1External Organizations, ou_persistent22              
2Oesterhelt, Dieter / Membrane Biochemistry, Max Planck Institute of Biochemistry, Max Planck Society, ou_1565164              

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 Abstract: Local atomic motions in bacteriorhodopsin (BR), the membrane protein in purple membranes (PMs) of Halobacterium salinarum, were studied by incoherent neutron scattering. The analysed sample consisted of fully deuterated purple membranes with BR- containing H-retinal, H-tryptophan, and H-methionine. These labelled groups are present in the retinal binding pocket and the extracellular part of BR. By using incoherent neutron scattering on two different backscattering instruments at the Institut Laue-Langevin, we. determined the mean-square displacements of small- and large-amplitude motions as a function of temperature for labelled as well as completely hydrogenated PM samples at different hydration states. We showed that the dynamics of the labelled part is more rigid, and influenced by temperature and hydration in a different way, than the membrane globally.

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Language(s): eng - English
 Dates: 2002-12
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 41757
ISI: 000181219600118
 Degree: -

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Title: Applied Physics A-Materials Science & Processing
  Alternative Title : Appl. Phys. A-Mater. Sci. Process.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 74 (Suppl. S) Sequence Number: - Start / End Page: S1287 - S1289 Identifier: ISSN: 0947-8396