TCB Publications - Abstract

Michael F. Grossjean, Paul Tavan, and Klaus Schulten. Can normal mode analysis reveal the geometry of the L550 chromophore of bacteriorhodopsin? European Biophysics Journal, 16:341-349, 1989.

GROS89 We discuss to what extent recent vibrational spectra of $14-^{2}H$, $15-^{2}H$ and 14, $15-^{2}$H isotopically labelled $L_{550}$ provide evidence for the occurrence of 13-cis, 14-s-trans or 13-cis, 14-s-cis chromophore structures in bacteriorhodopsin's photocycle. The discussion is based on a quantum chemical (MNDO) vibrational analysis of four molecular fragments as models for the retinal chromophore in bacteriorhodopsin.

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