Stefan Raunser

Structural Biochemistry

Phone:+49 (231) 133-2300
       www.raunser-lab.de

Assistance

Meike Schulte
Phone: +49 (231) - 133 2301
Fax: +49 (231) - 133 2399

Research interests

Structural Biochemistry >



Our research concentrates on the molecular understanding of fundamental cellular processes. Firstly, we are interested in membrane homeostasis in eukaryotic cells and secondly we want to understand the molecular details of muscle contraction. Another focus is on the molecular understanding of the mechanism of action of bacterial toxin complexes.
Our overarching goal is to understand the mechanisms underlying these processes in the healthy and diseased organism in molecular detail. To achieve this, it is essential to elucidate the structure and thus the function of the involved proteins and protein complexes.
We perform structural analyses by single particle cryo-EM and X-ray crystallography, fluorescence-based assays and site-directed mutagenesis to determine the structures and functions of these complexes. For their biophysical characterization we employ isothermal titration calorimetry, ESI-MS, bio-layer interferometry, thermophoresis and CD spectroscopy.


Selected publications

PubMed List>



Gatsogiannis C, Lang A, Meusch D, Pfaumann V, Hofnagel O, Benz R, Aktories K, Raunser S (2013). A syringe-like injection mechanism in Photorhabdus luminescens toxins. Nature. 495(7442):520-23
doi: 10.1038/nature11987
freely available!

Meusch D, Gatsogiannis C, Efremov R, Lang A, Hofnagel O, Vetter I, Aktories K, Raunser S (2014). Mechanism of Tc toxin action revealed in molecular detail. Nature 508(7494):61-5.
doi: 10.1038/nature13015
freely available!

Gatsogiannis C, Hofnagel O, Markl J, Raunser S (2015). Structure of Mega-Hemocyanin reveals protein origami in snails. Structure 23(1):93-103.
doi: 10.1016/j.str.2014.10.013

Efremov R, Hofnagel O, Raunser S (2015). Architecture and Conformational Switch Mechanism of the Ryanodine Receptor. Nature 517(7532):39-43.
doi: 10.1038/nature13916
freely available!

Whitney JC, Quentin D, Sawai S, LeRoux M, Harding BN, Ledvina HE, Tran BQ, Robinson H, Goo YA, Goodlett DR, Raunser S, Mougous JD (2015). An Interbacterial NAD(P)(+) Glycohydrolase Toxin Requires Elongation Factor Tu for Delivery to Target Cells. Cell 163(3):607-19.
doi: 10.1016/j.cell.2015.09.027

von der Ecken J, Müller M, Lehman W, Manstein DJ, Penczek PA, Raunser S (2015). Structure of the F-actin-tropomyosin complex. Nature 519(7541):114-7.
doi: 10.1038/nature14033
freely available!

von der Ecken J, Heissler SM, Pathan-Chhatbar S, Manstein DJ & Raunser S (2016).Cryo-EM structure of a human cytoplasmic actomyosin complex at near-atomic resolution. Nature 534(7609):724-28.
doi: 10.1038/nature18295
freely available!

Gatsogiannis C, Merino F, Serdiuk T, Prumbaum D, Roderer D, Leidreiter F, Meusch D, Müller DJ, and Raunser S (2016). Membrane insertion of a Tc toxin in atomic detail. Nature Structural and Molecular Biology 23(10):884-890.
doi: 10.1038/nsmb.3281
freely available!

 
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