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Do Proteins at Low Temperature Behave as Glasses? : A Single-Molecule Study

Title data

Baier, Jürgen ; Richter, Martin F. ; Cogdell, Richard J. ; Oellerich, Silke ; Köhler, Jürgen:
Do Proteins at Low Temperature Behave as Glasses? : A Single-Molecule Study.
In: The Journal of Physical Chemistry B. Vol. 111 (2007) Issue 5 . - pp. 1135-1138.
ISSN 1520-5207
DOI: https://doi.org/10.1021/jp0674569

Abstract in another language

We have recorded long spectral diffusion trajectories from individual LH2 pigment-protein complexes from the purple bacterium Rhodobacter sphaeroides at 1.4 K. From these data, the spectral cumulants of the absorption lines of individual, protein-embedded BChl a pigments have been evaluated. It appears that the first and second cumulants cannot be described by the predictions of the well tested standard two-level system (TLS) model for spectral diffusion in glasses. The results of the present study clearly show that there is a fundamental difference between the relaxation behavior of our test protein and that of glasses.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Lehrstuhl Experimentalphysik IX - Spektroskopie weicher Materie > Lehrstuhl Experimentalphysik IX - Spektroskopie weicher Materie - Univ.-Prof. Dr. Jürgen Köhler
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Lehrstuhl Experimentalphysik IX - Spektroskopie weicher Materie
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 10 Apr 2018 11:11
Last Modified: 10 Apr 2018 11:11
URI: https://eref.uni-bayreuth.de/id/eprint/43269