Evidence for a 13,14-cis cycle in bacteriorhodopsin

Journal Article · Tue Jul 01 00:00:00 EDT 1986 · Biophys. J.; (United States)

DOI:https://doi.org/10.1016/S0006-3495(86)83441-5· OSTI ID:7119753

Tavan, P; Schulten, K

The authors discuss to what extent the vibrational spectra of bacteriorhodopsin are in agreement with a photo-cycle of bacteriorhodopsin that involves the sequence BR, IO(all-trans) ..-->.. K(13,14-cis) ..-->.. L(13,14-cis) ..-->.. M(13-cis) ..-->.. N(13-cis) ..-->.. O(all-trans). The discussion is based on a quantumchemical modified neglect of diatomic overlap (MNDO) calculation of the vibrational spectra of the relevant isomers of the protonated retinal Schiff base. In particular, they investigated in these calculations the effects of different charge environments on the frequencies of the relevant C-C single bond stretching vibrations of these isomers.

• Research Organization: Technische Universitaet Muenchen, Garching, West Germany
• OSTI ID: 7119753
• Journal Information: Biophys. J.; (United States), Journal Name: Biophys. J.; (United States) Vol. 50:1; ISSN BIOJA
• Country of Publication: United States
• Language: English

Related Subjects

550201* -- Biochemistry-- Tracer Techniques
59 BASIC BIOLOGICAL SCIENCES
BACTERIA
CARBON 13
CARBON ISOTOPES
CELL CONSTITUENTS
CELL MEMBRANES
CHEMICAL BONDS
ENERGY LEVELS
EVEN-ODD NUCLEI
EXCITED STATES
ISOMERS
ISOTOPES
LIGHT NUCLEI
MEMBRANES
MICROORGANISMS
NUCLEI
ORGANIC COMPOUNDS
PIGMENTS
PROTEINS
RHODOPSIN
STABLE ISOTOPES
STEREOCHEMISTRY
VIBRATIONAL STATES