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Membrane protein synthesis in cell-free systems: From bio-mimetic systems to bio-membranes

: Sachse, Rita; Dondapati, Srujan K.; Fenz, Susanne F.; Schmidt, Thorsten; Kubick, Stefan


FEBS Letters 588 (2014), No.17, pp.2774-2781
ISSN: 0014-5793
ISSN: 1873-3468
Journal Article
Fraunhofer IZI ()
membrane proteins; cell-free systems; biological membranes; biomimetics; microsomes

When taking up the gauntlet of studying membrane protein functionality, scientists are provided with a plethora of advantages, which can be exploited for the synthesis of these difficult-to-express proteins by utilizing cell-free protein synthesis systems. Due to their hydrophobicity, membrane proteins have exceptional demands regarding their environment to ensure correct functionality. Thus, the challenge is to find the appropriate hydrophobic support that facilitates proper membrane protein folding. So far, various modes of membrane protein synthesis have been presented. Here, we summarize current state-of-the-art methodologies of membrane protein synthesis in biomimetic-supported systems. The correct folding and functionality of membrane proteins depend in many cases on their integration into a lipid bilayer and subsequent posttranslational modification. We highlight cell-free systems utilizing the advantages of biological membranes.