The phenomena of excited-state intramolecular proton transfer (phototautomerization) are
distinguished in molecular mechanism according to four classes. Intrinsic intramolecular …

Biochemical Applications of Raman and Resonance Raman Spectroscopies focuses on the
application of Raman and resonance Raman spectroscopies to biochemical problems. The …

The effects of solvation and charge-charge interactions on the pK a of ionizable groups in
bacteriorhodopsin have been studied using a macroscopic dielectric model with atom-level …

Visual pigments are composed of a small chromophore (absorption center) called retinal
(the aldehyde of vitamin A) covalently linked to surrounding protein, called opsin. The …

The proton transfer activity of the light-driven proton pump, bacteriorhodopsin (bR) in the
photochemical cycle might imply internal water molecules. The free energy of inserting water …

Gerard S. Harbison, Judith Herzfeld,* and Robert G. Griffin abstract: Solid-state 15N NMR
has been employed to ex-amine protonation of the Schiff base linkage in e-[15N] …

Membrane proteins facilitate some of the most important cellular processes including energy
conversion, ion transport and signal transduction. While conventional infrared absorption …

Rotational diffusion of bacteriorhodopsin in dimyristoyl phosphatidylcholine vesicles has
been measured at different temperatures and lipid; protein ratios by the technique of flash …

Bacteriorhodopsin (bR) in the purple membrane (PM) of Halobacterium halobium acts as a
light-driven proton pump and contains retinal in a stoichiometry of 1: 1. Resonance Raman …

The factors that influence the C== C and C= N stretching frequencies in protonated Schiff
bases, visual pigments, and bacteriorhodopsin (bR) are considered. For the C= C frequency …