Double-Quantum 13C Nuclear Magnetic Resonance of Bathorhodopsin, the First Photointermediate in Mammalian Vision
Maria Concistrè, Axel Gansmüller, Neville McLean, Ole G. Johannessen, Ildefonso Marín Montesinos, Petra H. M. Bovee-Geurts, Peter Verdegem, Johan Lugtenburg, Richard C. D. Brown, Willem J. DeGrip, and Malcolm H. Levitt
Abstract:
The 13C chemical shifts of the primary visual photointermediate bathorhodopsin have been observed by performing double-quantum magic-angle-spinning NMR at low temperature in the presence of illumination. Strong isomerization shifts have been observed upon the conversion of rhodopsin into bathorhodopsin.
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