title: Orientation of carotenoids in the outer membrane of Synechocystis PCC 6714 (cyanobacteria).
abstract: The orientation of outer membrane carotenoids from Synechocystis PCC 6714 and Synechococcus PCC 6307 was studied by linear dichroism spectrophotometry. Uniaxially oriented, tilted outer membrane films revealed a significant linear dichroism after rotating the polarization vector of the incident light beam, indicating a predominant orientation of the carotenoid transition moments perpendicular to the outer membrane plane. Values for the reduced dichroism at the absorbance maxima presented a linear correlation to a function of the tilt angle (sin2 alpha).
authors.affiliation: Institut für Biologie II, Mikrobiologie, Albert-Ludwigs-Universität, Freiburg, F.R.G.
authors.forename: U J
authors.initials: UJ
authors.lastname: Jürgens
authors.forename: W
authors.initials: W
authors.lastname: Mäntele
mesh_terms: D002338:Carotenoids / Q000737:chemistry*; D002462:Cell Membrane / Q000737:chemistry; D000458:Cyanobacteria / Q000378:metabolism*; D013056:Spectrophotometry, Ultraviolet
chemical_list: D002338:Carotenoids