Tetratricopeptide repeat protein Pyg7 is essential for photosystem I assembly by interacting with PsaC in Arabidopsis

doi:10.1073/pnas.1701762114

IB-CAS > 中科院光生物学重点实验室

	Tetratricopeptide repeat protein Pyg7 is essential for photosystem I assembly by interacting with PsaC in Arabidopsis
	Yang, Huixia ; Li, Pin 1; Zhang, Aihong ; Wen, Xiaogang ; Zhang, Lixin; Lu, Congming 1
	2017
发表期刊	PLANT JOURNAL
ISSN	0960-7412
卷号	91 期号:6 页码:950-961
摘要	Although progress has been made in determining the structure and understanding the function of photosystem I (PSI), the PSI assembly process remains poorly understood. PsaC is an essential subunit of PSI and participates in the transfer of electrons to ferredoxin. However, how PsaC is assembled during accumulation of the PSI complex is unknown. In the present study, we showed that Pyg7 localized to the stromal thylakoid and associated with the PSI complex. We also showed that Pyg7 interacted with PsaC. Furthermore, we found that the PSI assembly process was blocked following formation of the PsaAB heterodimer in the pyg7 mutant. In addition, the analyses of PSI stability in Pyg7 RNAi plants showed that Pyg7 is involved in maintaining the assembled PSI complex under excess-light conditions. Moreover, we demonstrated that decreased Pyg7 content resulted in decreased efficiency of PSI assembly in Pyg7 RNAi plants. These findings suggest that the role of Pyg7 in PSI biogenesis has evolved as an essential assembly factor by interacting with PsaC in Arabidopsis, in addition to being a stability factor for PSI as seen in Synechocystis.
关键词	photosystem I assembly photosynthesis PsaC subunit tetratricopeptide repeat protein Arabidopsis
学科领域	Science & Technology - Other Topics
DOI	10.1073/pnas.1701762114
收录类别	SCI
语种	英语
WOS关键词	ALGA CHLAMYDOMONAS-REINHARDTII ; CYCLIC ELECTRON-TRANSPORT ; ENERGY-TRANSFER PATHWAYS ; THYLAKOID PROTEIN ; HIGHER-PLANTS ; GREEN-ALGA ; PHOTOCHEMICAL MACHINE ; CYANOBACTERIAL YCF37 ; LHCI SUPERCOMPLEX ; CHLOROPLAST
WOS记录号	WOS:000408536000041
出版者	WILEY
文献子类	Article
出版地	HOBOKEN
EISSN	1365-313X
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31300994] ; Key Research Plan of Frontier Sciences of the Chinese Academy of Sciences [QYZDJ-SSW-SMC003] ; Chinese Academy of SciencesChinese Academy of Sciences [XDB17030300] ; State Key Basic Research and Development Plan of ChinaNational Basic Research Program of China [2015CB150105] ; National Key Scientific Instrument and Equipment Development Project of China [2013YQ030595]
作者邮箱	lucm@ibcas.ac.cn
作品OA属性	Green Published, Bronze, Green Submitted
引用统计	被引频次：1000[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/22262
专题	中科院光生物学重点实验室
作者单位	1.Chinese Acad Sci, Photosynthes Res Ctr, Key Lab Photobiol, Inst Bot, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Yang, Huixia,Li, Pin,Zhang, Aihong,et al. Tetratricopeptide repeat protein Pyg7 is essential for photosystem I assembly by interacting with PsaC in Arabidopsis[J]. PLANT JOURNAL,2017,91(6):950-961.
APA	Yang, Huixia,Li, Pin,Zhang, Aihong,Wen, Xiaogang,Zhang, Lixin,&Lu, Congming.(2017).Tetratricopeptide repeat protein Pyg7 is essential for photosystem I assembly by interacting with PsaC in Arabidopsis.PLANT JOURNAL,91(6),950-961.
MLA	Yang, Huixia,et al."Tetratricopeptide repeat protein Pyg7 is essential for photosystem I assembly by interacting with PsaC in Arabidopsis".PLANT JOURNAL 91.6(2017):950-961.

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