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Given their large range of applications and potential uses, researchers have been trying to find and develop ways to produce and purify phycobiliproteins to meet the growing demand for them. [18] One such phycobiliprotein is C-phycocyanin (C-PC), which is found in spirulina. A limiting factor of C-PC's usage in these applications is its protein ...
Phycobilins (from Greek: φύκος (phykos) meaning "alga", and from Latin: bilis meaning "bile") are light-capturing bilins found in cyanobacteria and in the chloroplasts of red algae, glaucophytes and some cryptomonads (though not in green algae and plants). [1]
Phycobiliprotein MW Ex (nm) / Em (nm) Quantum yield Molar Extinction Coefficient (M −1 cm −1) Comment Image R-Phycoerythrin (R-PE) 240 498.546.566 nm / 576 nm 0,84 1.53 10 6: Can be excited by Kr/Ar laser Applications for R-Phycoerythrin. Many applications and instruments were developed specifically for R-phycoerythrin.
Phycoerythrin (PE) is a red protein-pigment complex from the light-harvesting phycobiliprotein family, present in cyanobacteria, [1] red algae [2] and cryptophytes, [3] accessory to the main chlorophyll pigments responsible for photosynthesis.The red pigment is due to the prosthetic group, phycoerythrobilin, which gives phycoerythrin its red color.
Phycocyanin is a pigment-protein complex from the light-harvesting phycobiliprotein family, along with allophycocyanin and phycoerythrin. [1] It is an accessory pigment to chlorophyll. All phycobiliproteins are water-soluble, so they cannot exist within the membrane like carotenoids can.
The pigments in photoreceptor proteins either change their conformation or undergo photoreduction when they absorb a photon. [3] This change in the conformation or redox state of the chromophore then affects the protein conformation or activity and triggers a signal transduction cascade. [3] Examples of photoreceptor pigments include: [4]