phycobiliprotein


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phy·co·bi·li·pro·tein

 (fī′kō-bī′lə-prō′tēn′, -tē-ĭn)
n.
Any of a group of water-soluble fluorescent proteins that are covalently attached to phycobilins in cyanobacteria and red algae. They are widely used for research and industrial purposes, especially as fluorescent tags and as dyes.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
Furthermore, Spirulina contains many functional bioactive ingredients with antioxidant and anti-inflammatory activities, including phenolic phytochemicals [25,26] and the phycobiliprotein C-phycocyanin [27].
In our case, possibly IAA separated pigments by hydrophobic interaction with N-H groups of the proteins and by low relatively density of this solvent compared with water (LIDE, 1998) (Figure 2), especially phycoerythrin, a red protein-pigment complex from the light-harvesting phycobiliprotein family, which is easily extracted from Rhodophyceae, in which it play an important protective role against oxidative damage provoked by excess light exposure, and have several biotechnological applications for various fields, including food, medicine and aquaculture (CARDOZO et al., 2007).
On the other hand, PC is a phycobiliprotein of large dimensions (121,000 Da in its trimeric form, and approximately 40,000 Da in its monomeric form).
It has the solar energy utilization efficiency up to 18% and the photosynthetic efficiency up to 43% (more than 3 times high to those of advanced plants) due to its phycobiliprotein. So this paper intended to extract phycobiliprotein from spirulina and used it as photosensitizer to sensitize nano-Ti[O.sub.2] to equip the dye sensitized solar cell [21].
Several reports have presented data of photosynthetic yield in cyanobacteria by using different excitation light wavelengths as orange (590 nm) for chlorophyll-a fluorescence induction (FI) kinetics using a FL-100 Fluorometer (Photon Systems Instruments, Czech Republic) (Kana et al., 2009) or blue light avoiding the excitation of phycobiliproteins (since the cellular phycobiliprotein content influences the [F.sub.0] level fluorescence, particularly when phycobiliprotein levels are high).
Key Words: Antioxidant activity; Cyanophyceae; N-terminal analysis sequence; Phycobiliprotein Abbreviations: PBP, phycobiliprotein; APC, allophycocyanin; PC, phycocyanin; PE, phycoerythrin; DPPH, 2,2-diphenyl-1- picrylhydrazyl
It also contains a unique blue pigment, phycobiliprotein, which is only found in blue-green algae," said Gerald Cysewski, PhD, founder and chief science officer, Hawaii-based Cyanotech.
complex while still retaining genes encoding the phycobiliprotein PE