Results 191 to 200 of about 17,863 (211)
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Concentration-based self-assembly of phycocyanin
Photosynthesis Research, 2017Cyanobacteria light-harvesting complexes can change their structure to cope with fluctuating environmental conditions. Studying in vivo structural changes is difficult owing to complexities imposed by the cellular environment. Mimicking this system in vitro is challenging, as well.
Ido Eisenberg +10 more
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Potential Therapeutic Applications of C-Phycocyanin
Current Drug Metabolism, 2020Background:Cancer and other disorders such as inflammation, autoimmune diseases and diabetes are the major health problems observed all over the world. Therefore, identifying a therapeutic target molecule for the treatment of these diseases is urgently needed to benefit public health.
Saira M. Bannu +5 more
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Surface properties of phycocyanin
Journal of Colloid and Interface Science, 1983Abstract The change of surface pressure (π) during adsorption and compression of phycocyanin film at the air-water interface indicates that this phycobiliprotein is strongly attracted to the interface. It behaves like a flexible molecule but is not completely unfolded. The steep slope of the curve of π as a function of the bulk concentration ( C b ),
Rami Almog, Donald S Berns
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Cleavage of phycocyanobilin from C-phycocyanin
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1968Abstract The bile pigment chromophore of C-phycocyanin, phycocyanobilin, was cleaved from the protein by several procedures. Comparison of the crystalline phycocyanobilin dimethyl ester by chemical, spectral, and chromatographic properties was made. The pigment was found to be identical by all procedures.
D J, Chapman, W J, Cole, H W, Siegelman
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Effect of salts on C-phycocyanin
Archives of Biochemistry and Biophysics, 1971Abstract The effect of a number of inorganic anions on the quaternary structure of C-phycocyanin has been investigated by fluorescence polarization. Dissociation to monomer occurred in the order: SCN− > ClO4− > NO3− > Br− > Cl−. These results suggest that hydrophobic interactions are important in the hexamer-monomer equilibrium of C-phycocyanin.
R, MacColl, D S, Berns, N L, Koven
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Food Research International
As food safety continues to gain prominence, phycocyanin (PC) is increasingly favored by consumers as a natural blue pigment, which is extracted from microalgae and serves the dual function of promoting health and providing coloration. Spirulina-derived PC demonstrates exceptional stability within temperature ranges below 45 °C and under pH conditions ...
Zengyu Yu +8 more
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As food safety continues to gain prominence, phycocyanin (PC) is increasingly favored by consumers as a natural blue pigment, which is extracted from microalgae and serves the dual function of promoting health and providing coloration. Spirulina-derived PC demonstrates exceptional stability within temperature ranges below 45 °C and under pH conditions ...
Zengyu Yu +8 more
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PHYCOCYANIN‐SENSITIZED PHOTOREDUCTION OF AZO DYES*
Photochemistry and Photobiology, 1969Abstract— Phycocyanin can sensitize the photobleaching of azo dyes in a reaction which is analogous to one sensitized by chlorophyll. The quantum yield of the phycocyanin‐sensitized photobleaching of congo red is low compared to the analogous reaction as sensitized by chlorophyll in aqueous pyridine.
J S, Bellin, C A, Gergel
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Ultracentrifuge study of C-phycocyanin aggregation
Biochemistry, 1981The molecular weight of C-phycocyanin has been determined as a function of protein concentration in a sodium acetate buffer solution of pH 4.8 at 21.2 degrees C by the Yphantis method. The higher aggregate, the dodecamer (19 S), is first removed by dissociation simply by dialysis against pH 3.9 acetate buffer solution.
C, Huang, D S, Berns
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Effect of phycocyanin in zymosan-induced arthritis in mice?phycocyanin as an antiarthritic compound
Drug Development Research, 1999The antiinflammatory effect of a phycocyanin extract was studied in zymosan-induced arthritis model in mice. Four days after the intraarticular injection of zymosan, (15 mg/ml), phycocyanin (25, 50, and 100 mg/kg p.o) was administered to animals for 8 days. The mice were then killed and the synovial fluid measured for β-glucuronidase.
Diadelis Remirez +6 more
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Phycocyanins: Structure and Function
1976The presence of lamellar structures (thylakoids) is a common feature of the ultrastructure of cells performing oxygen evolving photosynthesis. In eukaryotic cells, the photosynthetic lamellae are contained within chloroplasts. In addition to protein-chlorophyll complexes, the thylakoids contain cytochromes, ferredoxin, plastocyanin, carotenoids ...
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