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Fluorescence recovery protein is a small protein involved in regulating non-photochemical quenching in cyanobacteria. It prevents accumulation of the red photoactivated form of orange carotenoid protein , thereby reducing the amount of fluorescence quenching that occurs between the OCP and the phycobilisome antenna complexes. It interacts with the C-terminal domain of OCP, which shares homology with the NTF2 superfamily.
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