| Relationship among Photosys-tem Ⅱ carbonic anhydrase,extrinsic polypeptides and manganese cluster |
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| 摘 要： | Effects of Photosystem Ⅱ (PS Ⅱ) extrinsic polypeptides of oxygen-evolving complex and manganese clusters on PSⅡ carbonic anhydrase (CA) were studied with spinach PSⅡ membranes. The result supported that membrane-bound CA is located in the donor side of PSⅡ. The extrinsic polypeptides played an important role of maintaining CA activity. After removing manganese clusters, oxygen evolution activity was inhibited, but PSⅡ-CA activity was unchanged. It was concluded that CA activity is independent of the presence of manganese clusters, and was not directly correlated with oxygen evolution activity.
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| 关 键 词： | carbonic anhydrase PSⅡ oxygen evolution complex extrinsic polypeptide manganese cluster |
| 收稿时间： | 2000-06-21 |
Relationship among Photosystem II carbonic anhydrase, extrinsic polypeptides and manganese cluster |
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| Xinbin Dai,Yong Yu,Rongxian Zhang,Xinjian Yu,Peiming He,Chunhe Xu. Relationship among Photosystem II carbonic anhydrase, extrinsic polypeptides and manganese cluster[J]. Chinese science bulletin, 2001, 46(5): 406-409. DOI: 10.1007/BF03183276 |
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| Authors: | Xinbin Dai Yong Yu Rongxian Zhang Xinjian Yu Peiming He Chunhe Xu |
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| Affiliation: | (1)Nanjing Agricultural University, Agronomy Department, Nanjing 210095 ,China;
(2)Shanghai Institute of Plant Physiology, Chinese Academy of Sciences, Shanghai 200032 ,China |
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| Abstract: | Effects of Photosystem II (PS II) extrinsic polypeptides of oxygen-evolving complex and manganese clusters on PS II carbonic anhydrase (CA) were studied with spinach PS II membranes. The result supported that membrane-bound CA is located in the donor side of PS II. The extrinsic polypeptides played an important role of maintaining CA activity. After removing manganese clusters, oxygen evolution activity was inhibited, but PS II-CA activity was unchanged. It was concluded that CA activity is independent of the presence of manganese clusters, and was not directly correlated with oxygen evolution activity. |
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| Keywords: | carbonic anhydrase PSⅡ oxygen evolution complex extrinsic polypeptide manganese cluster |
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