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Chapter category: Cell Metabolism

Cell-Free Expression Approaches for the Production and Characterization of Membrane Proteins

This chapter appears in the following book:

Cell-Free Protein Expression

Edited by: Wieslaw Kudlicki, Federico Katzen and Robert Bennett
ISBN: 978-1-58706-123-3
» Get more information about this book at landesbioscience.com «

Chapter authors:
Daniel Schwarz, Christian Klammt, Alexander Koglin, Florian Durst, Frank Löhr, Volker Dötsch and Frank Bernhard


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Membrane proteins still represent one of the major challenges of structural biology. The preparation of high quality samples of functionally folded protein is usually the major bottleneck that restricts further approaches. Cell-free expression has emerged in recent times as a promising tool for the fast production of membrane proteins at high levels and data from a variety of different systems are rapidly accumulating. In this chapter we review the current knowledge on the cell-free expression of membrane proteins in preparative scales. We summarize data on the functional and structural evaluation of cell-free produced membrane proteins as well as on the improvement of sample quality. Already established techniques like the cell-free expression of membrane proteins into detergent micelles will be presented in detail. In addition, we will comment on current developments like the involvement of liposomes and throughput applications. Potential synergies of cell-free expression and structural techniques will further be discussed with focus on structural approaches of cell-free produced transporters by NMR spectroscopy.

Daniel Schwarz
Centre for Biomolecular Magnetic Resonance, University of Frankfurt/Main, Institute for Biophysical Chemistry

Christian Klammt
Centre for Biomolecular Magnetic Resonance, University of Frankfurt/Main, Institute for Biophysical Chemistry

Alexander Koglin
Centre for Biomolecular Magnetic Resonance, University of Frankfurt/Main, Institute for Biophysical Chemistry

Florian Durst
Centre for Biomolecular Magnetic Resonance, University of Frankfurt/Main, Institute for Biophysical Chemistry

Frank Löhr
Centre for Biomolecular Magnetic Resonance, University of Frankfurt/Main, Institute for Biophysical Chemistry

Volker Dötsch
Centre for Biomolecular Magnetic Resonance, University of Frankfurt/Main, Institute for Biophysical Chemistry

Frank Bernhard
Centre for Biomolecular Magnetic Resonance, University of Frankfurt/Main, Institute for Biophysical Chemistry

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