The features of the spatial structure of the gramicidine A‐cesium complex
- 28 August 1995
- journal article
- Published by Wiley in FEBS Letters
- Vol. 371 (1) , 35-38
- https://doi.org/10.1016/0014-5793(95)00800-o
Abstract
Earlier obtained two-dimensional 1H-NMR spectroscopy data were used to analyze the spatial structure and conformational mobility of the double right ↑↓ ππLD7.2 helix of the complex formed by gramicidine A and Cs+ ions in an organic solvent (a chloroform-methanol mixture). Analysis of the experimental data permitted the determination of a set of conformations for each of the high-mobility residue side chains in the solution. The energy refinement of the most probable conformation of the double right ↑↓ ππLD7.2 helix was made and conformational rearrangements of the tryptophan residue side chain were studied in detailKeywords
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