Project Details
SFB 746: Functional Specificity by Coupling and Modification of Proteins
Subject Area
Biology
Medicine
Medicine
Term
from 2007 to 2018
Project identifier
Deutsche Forschungsgemeinschaft (DFG) - Project number 26068018
Function and integrity of cells within any organ or organism is guaranteed by the concerted action of many cellular processes that are realized by a large number of closely interconnected functional units. In fact, proteomic research identified numerous of these units as protein assemblies of distinct complexity. As yet, however, only a limited number of such assemblies from various cellular compartments have been successfully investigated, most of them await characterization of their architecture and functional significance. The central challenge of current and future protein and cellular research is, therefore, to elucidate composition, function and dynamics of these complex protein assemblies and to understand how they generate, on the basis of protein-protein interactions, the functional diversity and specificity required for the exquisitely precise working of cells and biological systems. Work of the Collaborative Research Center in the last two funding periods that led to a series of publications in the international top journals showed that protein complexes exhibit distinct levels of complexity: individual protein complexes with defined output, protein super-complexes that cooperate for a common task and finally protein networks, larger entities using broader signal integration to convey their highly specific output. These protein complexes operate as ¿nano-machineries¿ and comprise a number of as yet unknown protein constituents. Such nano-machineries are crucial for the control of gene expression, the sorting of proteins and rapid signal transduction processes across membranes.In the third funding period the research on "protein-encoded mechanisms of functional specificity" with emphasis on protein coupling and modification will be continued using the multidisciplinary approach that integrates analyses of different cellular systems and processes. The SFB is a consortium of groups and institutions of the Medical Faculty (basic research institutes and research groups of the University Hospital), the Faculty of Biology, and the Max Planck Institute of Immunobiology and Epigenetics that are closely connected in their research activities; these close connections together with strong support of young researchers are fundamental for the success of the SFB that represents a center piece of the Life Sciences at the University of Freiburg.
DFG Programme
Collaborative Research Centres
International Connection
Poland
Completed projects
- P01 - Functional characterization of linker histone modifications and variants (Project Head Schneider, Robert )
- P02 - Assembly and signal-mediated regulation of the androgen receptor/LSD1 histone demethylation complex (Project Head Schüle, Roland )
- P03 - Control of functionality in the NF-êB system through association with cell-type specific co-factor complexes (Project Head Saccani, Simona )
- P04 - Role of SUMOylation of Satb2 in the regulation of ES cell differentiation, gene expression and higher-order chromatin structure (Project Head Grosschedl, Rudolf )
- P05 - Protein modifications and interactions of the FOXO/DAF-16 and mTORC mediated stress response (Project Head Baumeister, Ralf )
- P06 - Analysis of pre-B cell receptor assembly and its SLP-65 dependent signalling function (Project Head Jumaa, Hassan )
- P07 - Modification and adaptor function of the B cell signaling proteins Syk and SHP-1 (Project Head Reth, Michael )
- P08 - Functional specificity of phytochrome complexes (Project Head Schäfer, Eberhard )
- P09 - Protein interactions and modifications as specificity determinants in UV-B signalling in Arabidopsis (Project Head Ulm, Roman )
- P10 - Function of the Hsp70 homolog Ssb in the maintenance of cellular energy homeostasis (Project Head Rospert, Sabine Karola )
- P11 - Coupling of presequence translocase and supercomplexes of the inner mitochondrial membrane (Project Head van der Laan, Martin )
- P12 - Reaction chains directing import and assembly of mitochondrial intermembrane space proteins (Project Heads Chacinska, Agnieszka ; Pfanner, Nikolaus )
- P13 - Signal sequence-dependent assembly of Tat translocon subunits (Project Head Müller, Matthias )
- P14 - Dynamics of the bacterial DNA-uptake and recombination machinery (Project Head Graumann, Peter )
- P15 - Stomatins are palmitoylated and attached to plasma membrane cholesterol to couple associated ion channels into mechanosensitive multi-protein complexes (Project Head Benzing, Thomas )
- P16 - Analysis of protein nano-environments of the voltage-gated P/Q-type Ca2+ channels Cav2.1 in the CN (Project Head Fakler, Bernd )
- P17 - Modification of GTP-binding proteins by deamidating and glycosylating toxins (Project Heads Aktories, Klaus ; Jank, Thomas ; Orth, Joachim )
- P18 - The role of formins as down-stream effector molecules of nephrocystins (Project Head Walz, Gerd )
- P19 - Functional specificity of protein interaction networks in plant hormone dependent regulation of cell fate determination (Project Head Palme, Klaus )
- P20 - The molecular basis of the diversity and functional specificity of neuronal metabotropic glutamate receptor-mediated signaling (Project Head Schulte, Uwe )
- P21 - Modulation of sodium/proton exchanger activity by covalent modification and protein interaction (Project Head Hunte, Carola )
- P22 - The protein sorting and assembly maschineries of the mitochondrial outer membrane (Project Heads Becker, Thomas ; Pfanner, Nikolaus )
- P23 - Studying the molecular mechanisms underlying transcription regulation by the NSL complex. (Project Head Akhtar, Ph.D., Asifa )
- P24 - Effect of phosphorylation on the archaellum regulatory protein network (Project Head Albers, Sonja Verena )
- P25 - Role of membrane contact sites in preprotein translocation into mitochondria (Project Head Pfanner, Nikolaus )
- P26 - Mitochondrial morphology regulation by dynamic Bcl-2 protein complexes (Project Head Edlich, Frank )
- P27 - Molecular basis of antigen recognition by variable lymphocyte receptors (VLRs) (Project Head Boehm, Thomas )
- Z01 - Central tasks of the Collaborative Research Centre (Project Head Fakler, Bernd )
Applicant Institution
Albert-Ludwigs-Universität Freiburg
Participating Institution
Max-Planck-Institut für Immunbiologie und Epigenetik
Spokesperson
Professor Dr. Bernd Fakler