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A remote prolyl isomerization controls domain assembly via a hydrogen bonding network.

Title data

Weininger, Ulrich ; Jakob, Roman P. ; Eckert, Barbara ; Schweimer, Kristian ; Schmid, Franz X. ; Balbach, Jochen:
A remote prolyl isomerization controls domain assembly via a hydrogen bonding network.
In: Proceedings of the National Academy of Sciences of the United States of America. Vol. 106 (28 July 2009) Issue 30 . - pp. 12335-12340.
ISSN 1091-6490
DOI: https://doi.org/10.1073/pnas.0902102106

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Abstract in another language

Prolyl cis/trans isomerizations determine the rates of protein folding reactions and can serve as molecular switches and timers. In the gene-3-protein of filamentous phage, Pro-213 trans --> cis isomerization in a hinge region controls the assembly of the 2 domains N1 and N2 and, in reverse, the activation of the phage for infection. We elucidated the structural and energetic basis of this proline-limited domain assembly at the level of individual residues by real-time 2D NMR. A local cluster of inter-domain hydrogen bonds, remote from Pro-213, is stabilized up to 3,000-fold by trans --> cis isomerization. This network of hydrogen bonds mediates domain assembly and is connected with Pro-213 by rigid backbone segments. Thus, proline cis/trans switching is propagated in a specific and directional fashion to change the protein structure and stability at a distant position.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: PubMed-ID: 12402030
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Former Professors > Professorship Biochemistry - Univ.-Prof. Dr. Franz Xaver Schmid
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Professorship Biochemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Former Professors
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 23 Apr 2015 08:21
Last Modified: 08 May 2015 11:25
URI: https://eref.uni-bayreuth.de/id/eprint/10561