Tuesday, August 19, 2008

J. Am. Chem. Soc., 130 (32), 10490–10491, 2008.

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

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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