title: N-like intermediate in the photocycle of the acid purple form of bacteriorhodopsin.
abstract: The photocycle of the acid-purple form of bacteriorhodopsin (BR) was studied by multiwavelength absorption kinetic measurements. The data were evaluated using a new method based on the differences in the kinetics of the absorption changes at different wavelengths [Tokaji, Zs. (1995) FEBS Lett. 357, 156-160]. The evaluation indicates that, in contrast to the previous suggestion, the photocycle of the acid purple BR contains an intermediate that, in its spectral and kinetic properties, resembles the N intermediate of the alkaline BR photocycle.
authors.affiliation: Institute of Biophysics, Biological Research Center, Szeged, Hungary.
authors.forename: Z
authors.initials: Z
authors.lastname: Tokaji
authors.forename: A
authors.initials: A
authors.lastname: Dér
authors.forename: L
authors.initials: L
authors.lastname: Keszthelyi
mesh_terms: D001436:Bacteriorhodopsins / Q000737:chemistry* / Q000378:metabolism; D006217:Halobacterium / Q000378:metabolism*; D007700:Kinetics; D010777:Photochemistry; D018717:Purple Membrane / Q000378:metabolism*; D013057:Spectrum Analysis
chemical_list: D001436:Bacteriorhodopsins