Characterization of the mobility of various chemical groups in the purple membrane of Halobacterium halobium by 13C, 31P and 2H solid state NMR.

Clicks: 331
ID: 730
1983
Lyophilized purple membrane sheets have been investigated by C-13- and P-31-cross polarization/magic angle spinning NMR spectroscopy. The high-resolution C-13 spectrum and its non-quaternary suppression version indicate fast protein side-chain motions but a rigid backbone structure on a time scale of roughly less than 0.001 to 0.01 s. Three components of exchangeable hydrogen have been detected by deuterium NMR. The mean exchange time of the peptide hydrogens must be longer than 1 microsecond. The medium component is attributed to mobile side-chains. In addition a narrow line has been observed which is assigned to the residual hydration water.
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Authors Spohn, K H;Kimmich, R;
Journal Biochemical and biophysical research communications
Year 1983
DOI DOI not found
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