Phycoerythrin: The metal-free red phycobilin pigment in a conjugated chromoprotein of red algae. Phycoerythrin is a red protein from the light-harvesting phycobiliprotein family, present in cyanobacteria, red algae and cryptomonads. Phycoerythrin is a group of red photosynthetic pigments present in red algae and some cyanobacteria.Polysiphonia is a type of red algae. Phycoerythrin imparts red colour. As nouns the difference between phycoerythrin and phycocyanin is that phycoerythrin is (protein) a red, light-harvesting protein found in cyanobacteria, red algae and cryptomonads while phycocyanin is (biochemistry) a pigment from the light-harvesting phycobiliprotein family, along with allophycocyanin and phycoerythrin, an accessory pigment to chlorophyll. Phycoerythrin Streptavidin is a highly fluorescent label which can overcome problems of endogenous fluorescence. phycoerythrin A phycobilin pigment present in cyanobacteria which can be coupled to antibodies for detecting proteins and antigens due to the extremely bright (red) signal immunofluorescence assays. After phycobiliproteins are conjugated to secondary antibodies, there is little fluorescence quenching, which results in conjugates of high specific fluorescence compared with conventional fluorophore-antibody conjugates. Meaning of phycoerythrin. Hypernyms [ edit ] phycoerythrin (plural phycoerythrins) ( biochemistry ) A red, light-harvesting protein found in cyanobacteria , red algae and cryptomonads . NP-PE (Phycoerythrin) is a 4-Hydroxy-3-nitrophenylacetyl hapten conjugated to PE (Phycoerythrin) protein via amide bonds to lysine. Purified R-phycoerythrin (isolated from a red alga) and C-phycoerythrin (isolated from a cyanobacterium), each of which contains several chromophores, were studied by a combination of fluorescence emission, fluorescence excitation polarization, and absorption methods. Phycobiliproteins are stable and water-soluble proteins derived from cyanobacteria and certain algae. It is a stable protein which can be easil (3) carotene- The term carotene is used for several related substances having … (2) Xanthophylls- are yellow pigments from the carotenoid group. Meaning: Red pigment in red algae. -Phycoerythrin is going to have a great advantage over other algae at a depth of 200 meters because Phycoerythrin can absorb blue and green light.-Phycocyanin does not absorb red light, this means this pigment isn't useful near the surface because phycocyanin can only absorb light between 50 and 100 meters, absorbing yellow and green light. 703-0004 is the same as the 3 mg size. The effect of selected edible preservatives like citric acid, sodium chloride, sucrose and calcium chloride on the stability of C-Phycoerythrin at 0±5°C and 35±5°C was studied in aqueous solution. 703-0015 is the same as the 600 µg size. B-PE is composed of at least three subunits and sometimes more. The PE001 antibody reacts with both phycoerythrin (PE) alone and PE conjugated with antibody or streptavidin, as well as PE tandem dyes such as PE/Cy5, PE/Cy5.5 and PE/Cy7. What does phycoerythrin mean? B-phycoerythrin and R-phycoerythrin are derived from natural sources (some bacteria and algae) and have been used as the target for free radical-mediated damage in in vitro assays. It is a phycobiliprotein, in which the pigmented prosthetic group is phycoerythrobilin, which gives phycoerythrin its red colour. If this conjugate is used in tissue staining, VECTASHIELD ® HardSet™ or Vibrance Mounting Medium is recommended for mounting. Other articles where Phycoerythrin is discussed: algae: Photosynthesis and light-absorbing pigments: …blue (phycocyanins) or red (phycoerythrins), are found in red algae and cryptomonads. 703-0030 is the same as the 3 x 10 ug size. Phycoerythrin Assay. Phycoerythrin definition: a type of red pigment or protein which is found in algae | Meaning, pronunciation, translations and examples The broad excitation spectrum provides the advantage for multi-color immunofluorescent staining or cell sorting. R-Phycoerythrin (red algae), 500 mg (formerly ProZyme). This product is manufactured by Expedeon, an Abcam company, and was previously called Lightning-Link ® R-PE Labeling Kit. With an extremely high absorbtivity, a high quantum efficiency, a large Stokes shift and excitation and emission bands at visible wavelengths. From phycobiliprotein family, present in cyanobacteria, red algae and some cyanobacteria.Polysiphonia is stable. 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