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Molecular property and physiological function of CP12 involved in regulation of the Calvin cycle in cyanobacteria
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- Tamoi Masahiro
- Faculty of Agriculture, Kinki Univ.
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- Morimoto Kentaro
- Faculty of Agriculture, Kinki Univ.
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- Miyazaki Takashi
- Faculty of Agriculture, Kinki Univ.
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- Fukamizo Tamo
- Faculty of Agriculture, Kinki Univ.
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- Shigeoka Shigeru
- Faculty of Agriculture, Kinki Univ.
Bibliographic Information
- Other Title
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- ラン藻カルビン回路調節に関わるCP12の分子特性と生理機能
Description
CP12 in photosynthetic organisms contained four Cys essential for formation of N-terminal and C-terminal peptide loops to interact with PRK and GAPDH proteins. However, CP12 in Synechococcus PCC7942 lacked two Cys to form the N-terminal peptide loop. The mutant CP12 changed Cys-61 and Cys-70 to Ser involved in formation of the C-terminal peptide loop had no effect on CP12/PRK interaction, suggesting that the N-terminal region of CP12 is associated with the interaction with PRK in spite of absence of two Cys. The growth rate of CP12-disrupted mutant (ScΔCP12) was almost the same as that of wild-type under continuous light conditions. However, under 12-h light/12-h dark conditions, ScΔCP12 cells grew significantly slower than wild-type cells. In the dark, RuBP content in the ScΔCP12 cells was significantly larger than that in wild-type cells. These data suggest that the CP12 in cyanobacteria is associated with regulation of the Calvin cycle in the dark.
Journal
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- Plant and Cell Physiology Supplement
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Plant and Cell Physiology Supplement 2004 (0), 652-652, 2004
The Japanese Society of Plant Physiologists
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Details 詳細情報について
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- CRID
- 1390282680604573440
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- NII Article ID
- 130006988173
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- Data Source
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- JaLC
- CiNii Articles
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- Abstract License Flag
- Disallowed