FMP Publications

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

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Small-molecule inhibitors of AF6 PDZ-mediated protein-protein interactions
Vargas, C., Radziwill(*), G., Krause, G., Diehl, A., Keller, S., Kamdem, N., Czekelius(*), C., Kreuchwig, A., Schmieder, P., Doyle(*), D., Moelling(*), K., Hagen, V., Schade(*), M.; Oschkinat, H.
Chemmedchem, 9:1458-1462

Tags: NMR-Supported Structural Biology (Oschkinat), Solution NMR (Schmieder), Synthetic Organic Biochemistry (Hagen), Structural Bioinformatics and Protein Design (Krause, G.), Biophysics of Membrane Proteins (Keller), Synthetic Organic Biochemistry (Hagen)

Abstract: PDZ (PSD-95, Dlg, ZO-1) domains are ubiquitous interaction modules that are involved in many cellular signal transduction pathways. Interference with PDZ-mediated protein-protein interactions has important implications in disease-related signaling processes. For this reason, PDZ domains have gained attention as potential targets for inhibitor design and, in the long run, drug development. Herein we report the development of small molecules to probe the function of the PDZ domain from human AF6 (ALL1-fused gene from chromosome 6), which is an essential component of cell-cell junctions. These compounds bind to AF6 PDZ with substantially higher affinity than the peptide (Ile-Gln-Ser-Val-Glu-Val) derived from its natural ligand, EphB2. In intact cells, the compounds inhibit the AF6-Bcr interaction and interfere with epidermal growth factor (EGF)-dependent signaling.

AhR sensing of bacterial pigments regulates antibacterial defence
Moura-Alves(*), P., Fae(*), K., Houthuys(*), E., Dorhoi(*), A., Kreuchwig, A., Furkert, J., Barison(*), N., Diehl, A., Munder(*), A., Constant, P., Skrahina(*), T., Guhlich-Bornhof(*), U., Klemm(*), M., Koehler(*), A. B., Bandermann(*), S., Goosmann(*), C., Mollenkopf(*), H. J., Hurwitz(*), R., Brinkmann(*), V., Fillatreau(*), S., Daffe(*), M., Tummler, B., Kolbe(*), M., Oschkinat, H., Krause, G.; Kaufmann(*), S. H.
Nature, 512:387-392

Tags: Structural Bioinformatics and Protein Design (Krause, G.), NMR-Supported Structural Biology (Oschkinat), Protein Trafficking (Schülein)

Abstract: The aryl hydrocarbon receptor (AhR) is a highly conserved ligand-dependent transcription factor that senses environmental toxins and endogenous ligands, thereby inducing detoxifying enzymes and modulating immune cell differentiation and responses. We hypothesized that AhR evolved to sense not only environmental pollutants but also microbial insults. We characterized bacterial pigmented virulence factors, namely the phenazines from Pseudomonas aeruginosa and the naphthoquinone phthiocol from Mycobacterium tuberculosis, as ligands of AhR. Upon ligand binding, AhR activation leads to virulence factor degradation and regulated cytokine and chemokine production. The relevance of AhR to host defence is underlined by heightened susceptibility of AhR-deficient mice to both P. aeruginosa and M. tuberculosis. Thus, we demonstrate that AhR senses distinct bacterial virulence factors and controls antibacterial responses, supporting a previously unidentified role for AhR as an intracellular pattern recognition receptor, and identify bacterial pigments as a new class of pathogen-associated molecular patterns.

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Leibniz-Forschungsinstitut für Molekulare Pharmakologie im Forschungsverbund Berlin e.V. (FMP)
Campus Berlin-Buch
Robert-Roessle-Str. 10
13125 Berlin, Germany
+4930 94793 - 100 
+4930 94793 - 109 (Fax)

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