Results 201 to 210 of about 90,603 (246)
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Fluorescence studies on R-phycoerythrin and C-phycoerythrin
Journal of Fluorescence, 1991Biliproteins are photosynthetic light-harvesting proteins, which transfer excitons with high efficiencies over relatively long distances until they arrive at a photosynthetic reaction center. Purified R-phycoerythrin (isolated from a red alga) and C-phycoerythrin (isolated from a cyanobacterium), each of which contains several chromophores, were ...
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Phycoerythrin 566 — a fluorescence study
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1989The cryptomonad biliprotein, phycoerythrin 566 from Cryptomonas ovata , has been studied by a variety of spectroscopic technics, including absorption, fluorescence, fluorescence polarization, and ultrafast fluorescence kinetics. The data were analyzed to obtain information about the transfer of excitons among the various chromophores (bilins) on the ...
Deborah Guard-Friar +2 more
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Phosphorescence spectra of R-phycoerythrin
Journal of Photochemistry and Photobiology B: Biology, 1993Abstract The phosphorescence of R-phycoerythrin from the red alga Callithamnion corymbosum was detected. The phosphorescence spectrum of R-phycoerythrin has two main components with maxima at 720 nm and 820 nm and lifetimes of 2.5 ms and 6.0 ms respectively.
Igor N. Stadnichuk +2 more
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Isolation, properties and spatial site analysis of γ subunits of B-phycoerythrin and R-phycoerythrin
Science in China Series C: Life Sciences, 1998Polysiphonia urceolata R-phycoerythrin and Porphyridium cruentum B-phycoerythrin were degraded with proteinaseK, and then the nearly native gamma subunits were isolated from the reaction mixture. The process of degradation of phycoerythrin with proteinaseK showed that the gamma subunit is located in the central cavity of (alphabeta)(6) hexamer of ...
G, Wang, B, Zhou, C, Zeng
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Phycoerythrins from some Acrochaetium Species
Nature, 1968THE possibility that the water soluble phycobilin pigments of red algae show physical properties of taxonomic significance at the generic level has been frequently explored. The three main phycoerythrin “types” described are C, B and R-phycoerythrin, based on their plant sources (from the Cyanophyceae, and from the sub-classes Bangiophycidae and ...
A. D. BONEY, E. B. WHITE
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An Unusual Phycoerythrin from a Marine Cyanobacterium
Science, 1984Phycoerythrin conjugates are reagents for cell sorting and analyses in which the argon-ion laser line at 488 nanometers is used for excitation. Many marine Synechococcus strains contain phycoerythrins with absorption maxima at approximately 490 and 550 nanometers; these maxima indicate the presence of phycourobilin ...
L J, Ong, A N, Glazer, J B, Waterbury
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B-Phycoerythrin from Rhodella violacea
Archives of Microbiology, 1975Two isoproteins of the "native" B-phycoerythrin of the red alga, Rhodella violacea, were purified from crude extracts by preparative polyacrylamide gel electrophoresis and subsequently characterized. The slower moving pigment in gel electrophoresis was designated B-PE I, the faster as B-PE II. Both were found to occur in about equal amounts. B-PE I has
K P, Koller, W, Wehrmeyer
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Biotechnology and Bioengineering, 2003
AbstractThe goal of this work was to measure and model the effect of thermal exposure on the fluorescence emission of R‐phycoerythrin (R‐PE). The long‐term objective of our work is to assess the feasibility of encapsulating R‐PE for use as the critical component of a time‐temperature integrator (TTI) for ascertaining the degree of inactivation of food ...
S, Vaidya +3 more
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AbstractThe goal of this work was to measure and model the effect of thermal exposure on the fluorescence emission of R‐phycoerythrin (R‐PE). The long‐term objective of our work is to assess the feasibility of encapsulating R‐PE for use as the critical component of a time‐temperature integrator (TTI) for ascertaining the degree of inactivation of food ...
S, Vaidya +3 more
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Multiple forms of phycoerythrin-545 from Cryptomonas maculata
Archives of Microbiology, 1977Three multiple phycoerythrin-545 forms were purified from crude extracts of Cryptomonas maculata by preparative isoelectric focusing. The phycoerythrin forms are charge isomers with isoelectric points at 7.83, 5.05 and 4.84. The multiple pigment forms have similar molecular weights of 44500 daltons and are composed of subunits of unequal size in a 1:1 ...
E, Mörschel, W, Wehrmeyer
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Comparative studies of chromatographically separated phycoerythrins and phycocyanins
Archives of Biochemistry and Biophysics, 1955Abstract 1. 1. The chromatographic method of Swingle and Tiselius has been successfully applied to the separation and recovery of the bile pigment chromoproteins of a variety of red and blue-green algae. 2. 2. In addition to the conventional R and C varieties of phycoerythrin and phycocyanin, several other chromoproteins were encountered ...
F, HAXO, C, O'HEOCHA, P, NORRIS
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