FMP Publications

Our publications are recorded in a searchable database since 2010, updates will be added regularly.

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What's in a name? Why these proteins are intrinsically disordered: Why these proteins are intrinsically disordered
Dunker(*), A. K., Babu(*), M. M., Barbar(*), E., Blackledge(*), M., Bondos(*), S. E., Dosztanyi(*), Z., Dyson(*), H. J., Forman-Kay(*), J., Fuxreiter(*), M., Gsponer(*), J., Han(*), K. H., Jones(*), D. T., Longhi(*), S., Metallo(*), S. J., Nishikawa(*), K., Nussinov(*), R., Obradovic(*), Z., Pappu(*), R. V., Rost(*), B., Selenko, P., Subramaniam(*), V., Sussman(*), J. L., Tompa(*), P.; Uversky(*), V. N.
Intrinsically disordered proteins, 1:e24157
(2013)

Tags: In-Cell NMR (Selenko)

Abstract: "What's in a name? That which we call a rose By any other name would smell as sweet." From "Romeo and Juliet", William Shakespeare (1594) This article opens a series of publications on disambiguation of the basic terms used in the field of intrinsically disordered proteins. We start from the beginning, namely from the explanation of what the expression "intrinsically disordered protein" actually means and why this particular term has been chosen as the common denominator for this class of proteins characterized by broad structural, dynamic and functional characteristics.

The Bacterial Translocon SecYEG Opens upon Ribosome Binding
Knyazev(*), D. G., Lents(*), A., Krause, E., Ollinger(*), N., Siligan(*), C., Papinski(*), D., Winter(*), L., Horner(*), A.; Pohl(*), P.
Journal of Biological Chemistry, 288:17941-17946
(2013)

Tags: Mass Spectrometry (Krause, E.)

Abstract: In co-translational translocation, the ribosome funnel and the channel of the protein translocation complex SecYEG are aligned. For the nascent chain to enter the channel immediately after synthesis, a yet unidentified signal triggers displacement of the SecYEG sealing plug from the pore. Here, we show that ribosome binding to the resting SecYEG channel triggers this conformational transition. The purified and reconstituted SecYEG channel opens to form a large ion-conducting channel, which has the conductivity of the plug deletion mutant. The number of ion-conducting channels inserted into the planar bilayer per fusion event roughly equals the number of SecYEG channels counted by fluorescence correlation spectroscopy in a single proteoliposome. Thus, the open probability of the channel must be close to unity. To prevent the otherwise lethal proton leak, a closed post-translational conformation of the SecYEG complex bound to a ribosome must exist.

Functional properties of cell-free expressed human endothelin A and endothelin B receptors in artificial membrane environments
Proverbio(*), D., Roos(*), C., Beyermann, M., Orban(*), E., Dötsch(*), V.; Bernhard(*), F.
Bba-Biomembranes, 1828:2182-2192
(2013)

Tags: Peptide Chemistry (Beyermann)

Abstract: The human endothelin receptors are members of the rhodopsin class A of G-protein coupled receptors and key modulators of blood pressure regulation. Their functional in vitro characterization has widely been limited by the availability of high quality samples. We have optimized cell-free expression protocols for the human endothelin A and endothelin B receptors by implementing co-translational association approaches of the synthesized proteins with supplied liposomes or nanodiscs. Efficiency of membrane association and ligand binding properties of the receptors have systematically been studied in correlation to different membrane environments and lipid types. Ligand binding was analyzed by a number of complementary assays including radioassays, surface plasmon resonance and fluorescence measurements. High affinity binding of the peptide ligand ET-I to both endothelin receptors could be obtained with several conditions and the highest Bmax values were measured In association with nanodiscs. We could further obtain the characteristic differential binding pattern of the two endothelin receptors with a panel of selected agonists and antagonists. Two intrinsic properties of the functionally folded endothelin B receptor, the proteolytic processing based on conformational recognition as well as the formation of SDS-resistant complexes with the peptide ligand ET-1, were observed with samples obtained from several cell-free expression conditions. High affinity and specific binding of ligands could furthermore be obtained with non-purified receptor samples in crude cell-free reaction mixtures, thus providing new perspectives for fast in vitro screening applications. (C) 2013 Elsevier B.V. All rights reserved.

Highly functionalized terpyridines as competitive inhibitors of AKAP-PKA interactions
Schäfer(*), G., Milic(*), J., Eldahshan, A., Götz(*), F., Zühlke(*), K., Schillinger, C., Kreuchwig, A., Elkins(*), J. M., Abdul Azeez(*), K. R., Oder(*), A., Moutty(*), M. C., Masada(*), N., Beerbaum, M., Schlegel, B., Niquet(*), S., Schmieder, P., Krause, G., von Kries, J. P., Cooper(*), D. M., Knapp(*), S., Rademann, J., Rosenthal(*), W.; Klussmann(*), E.
Angew Chem Int Ed Engl, 52:12187-12191
(2013)

Tags: Medicinal Chemistry (Rademann), Screening Unit (von Kries), Solution NMR (Schmieder)

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Leibniz-Forschungsinstitut für Molekulare Pharmakologie im Forschungsverbund Berlin e.V. (FMP)
Campus Berlin-Buch
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13125 Berlin, Germany
+4930 94793 - 100 
+4930 94793 - 109 (Fax)
info(at)fmp-berlin.de

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