THE STUDY OF PHYCOBILIPROTEINS IN Porphyra yezoensis——ASSOCIATION AND DISSOCIATION OF R-PHYCOERYTHRIN |
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作者姓名: | 杨紫萱 蒋丽金 曾繁杰 |
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作者单位: | Institute of Photographic Chemistry,Academia Sinica,Beijing,Institute of Photographic Chemistry,Academia Sinica,Beijing,Institute of Photographic Chemistry,Academia Sinica,Beijing |
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基金项目: | The project supported by the National Natural Science Foundation of China. |
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摘 要: | In fresh Porphyra yezoensis, R-phycoerythrin exists mainly as octamer (αβ)_8 with only a small percentage of dimer (αβ)_2.The octamer could be dissociated into dimer in the presence of oxygen and visible light.The dimer was ultracentrifuged in a sucrose linear gradient to obtain the monomer,The monomer could be associated again into dimer.This reversible change between the monomer and dimer of R-phycoerythrin may be attributed to the shift of hydrogen bonds between forms of phycoerythrin molecules.
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