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Biosynthesis of isotopically labeled gramicidins and tyrocidins by Bacillus brevis

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http://pubman.mpdl.mpg.de/cone/persons/resource/persons78838

Vogt,  T. C. B.
Former Research Groups, Max Planck Institute of Biochemistry, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons78636

Schinzel,  S.
Former Research Groups, Max Planck Institute of Biochemistry, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons77723

Bechinger,  B.
Former Research Groups, Max Planck Institute of Biochemistry, Max Planck Society;

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Citation

Vogt, T. C. B., Schinzel, S., & Bechinger, B. (2003). Biosynthesis of isotopically labeled gramicidins and tyrocidins by Bacillus brevis. Journal of Biomolecular NMR, 26(1), 1-11.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0010-6C07-1
Abstract
The three-dimensional structure of bilayer-associated gramicidin A is available from a structural data base. This and related peptides are, therefore, ideal model compounds to use during the implementation and development of new NMR techniques for the structural investigations of membrane proteins. As these methods rely on the isotopic labelling of single, selected or all sites, we have, investigated and optimised biochemical protocols using different strains of the Gram- positive bacterium Bacillus brevis. With newly developed schemes for isotopic labelling large amounts of gramicidin and tyrocidin enriched with stable isotopes such as N-15 or N-15/C- 13 have been obtained at low cost. A variety of analytical and spectroscopic techniques, including HPLC, mass spectrometry and NMR spectroscopy are used to characterise the resulting products.