Molecular dynamics simulations of the tetracycline-repressor protein: The mechanism of induction

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autor(en): Lanig H, Othersen O, Beierlein F, Seidel U, Clark T
Zeitschrift: Journal of Molecular Biology
Verlag: Elsevier
Jahr der Veröffentlichung: 2006
Band: 359
Heftnummer: 4
Seitenbereich: 1125-1136
ISSN: 0022-2836


Abstract


Molecular dynamics simulations on the tetracycline-repressor (TetR) protein, both in the absence of an inducer and complexed with the inducers tetracycline and 5a,6-anhydrotetracycline, show significant differences in the structures and dynamics of the induced and non-induced forms of the protein. C-alpha-density-difference plots, low-frequency normal vibrations and inter-residue interaction energies all point to a common mechanism of induction. The inducer displaces Asp156 from the magnesium ion in the binding pocket, leading to a short cascade of rearrangements of salt bridges that results in the allosteric change. The increased flexibility of the induced form of the protein is suggested to contribute to the decrease in binding affinity to DNA on induction. (c) 2006 Elsevier Ltd. All rights reserved.



FAU-Autoren / FAU-Herausgeber

Beierlein, Frank Dr.
Computer-Chemie-Centrum
Clark, Timothy apl. Prof. Dr.
Computer-Chemie-Centrum
Lanig, Harald PD Dr.
Exzellenz-Cluster Engineering of Advanced Materials


Zitierweisen

APA:
Lanig, H., Othersen, O., Beierlein, F., Seidel, U., & Clark, T. (2006). Molecular dynamics simulations of the tetracycline-repressor protein: The mechanism of induction. Journal of Molecular Biology, 359(4), 1125-1136. https://dx.doi.org/10.1016/j.jmb.2006.04.014

MLA:
Lanig, Harald, et al. "Molecular dynamics simulations of the tetracycline-repressor protein: The mechanism of induction." Journal of Molecular Biology 359.4 (2006): 1125-1136.

BibTeX: 

Zuletzt aktualisiert 2018-10-08 um 05:57