Exploiting hydrophobicity for efficient production of transmembrane helices for structure determination by NMR spectroscopy.
Related Articles Exploiting hydrophobicity for efficient production of transmembrane helices for structure determination by NMR spectroscopy.
Anal Chem. 2015 Aug 26;
Authors: Bugge K, Steinocher H, Brooks AJ, Lindorff-Larsen K, Kragelund BB
Abstract
Despite the biological and pharmaceutical significance of membrane proteins, their tertiary structures constitute less than 3% of known structures. One of the major obstacles for initiating structural studies of membrane proteins by NMR spectroscopy is the generation of high amounts of isotope-labeled protein. In this work we have exploited the hydrophobic nature of membrane proteins to develop a simple and efficient production scheme for isotope-labeled single-pass transmembrane domains (TMDs) with or without intrinsically disordered regions. We have evaluated the applicability and limitations of the strategy using seven membrane protein variants that differ in their overall hydrophobicity and length, and show a recovery for suitable variants of >70%. The developed production scheme is cost-efficient and easy to implement, and has the potential to facilitate an increase in the number of structures of single-pass TMDs, which are difficult to solve by other means.
PMID: 26309151 [PubMed - as supplied by publisher]
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