HCF243 Encodes a Chloroplast-localized Protein Involved in the D1 Protein Dynamics of the Arabidopsis PSII Complex

CORC > 青岛生物能源与过程研究所 > 中国科学院青岛生物能源与过程研究所 > 植物代谢工程团队

	HCF243 Encodes a Chloroplast-localized Protein Involved in the D1 Protein Dynamics of the Arabidopsis PSII Complex
	Dongyuan Zhang ; Gongke Zhou
刊名	Plant Physiology
	2011
卷号	157 期号:2 页码:608-19
中文摘要	Numerous auxiliary nuclear factors have been identified to be involved in the dynamics of the photosystem II (PSII) complex. In this study, we characterized the high chlorophyll fluorescence243(hcf243) mutant of Arabidopsis (Arabidopsis thaliana), which shows higher chlorophyll fluorescence and is severely deficient in the accumulation of PSII supercomplexes compared with the wild type. The amount of core subunits was greatly decreased, while the outer antenna subunits and other subunits were hardly affected in hcf243. In vivo protein-labeling experiments indicated that the synthesis rate of both D1 and D2 proteins decreased severely in hcf243, whereas no change was found in the rate of other plastid-encoded proteins. Furthermore, the degradation rate of the PSII core subunit D1 protein is higher in hcf243 than in the wild type, and the assembly of PSII is retarded significantly in the hcf243 mutant.HCF243, a nuclear gene, encodes a chloroplast protein that interacts with the D1 protein. HCF243homologs were identified in angiosperms with one or two copies but were not found in lower plants and prokaryotes. These results suggest that HCF243, which arose after the origin of the higher plants, may act as a cofactor to maintain the stability of D1 protein and to promote the subsequent assembly of the PSII complex.
学科主题	能源植物资源
收录类别	SCI
语种	英语
公开日期	2012-11-11
内容类型	期刊论文
源URL	[http://ir.qibebt.ac.cn:8080/handle/337004/1263]
专题	青岛生物能源与过程研究所_植物代谢工程团队
推荐引用方式 GB/T 7714	Dongyuan Zhang,Gongke Zhou. HCF243 Encodes a Chloroplast-localized Protein Involved in the D1 Protein Dynamics of the Arabidopsis PSII Complex[J]. Plant Physiology,2011,157(2):608-19.
APA	Dongyuan Zhang,&Gongke Zhou.(2011).HCF243 Encodes a Chloroplast-localized Protein Involved in the D1 Protein Dynamics of the Arabidopsis PSII Complex.Plant Physiology,157(2),608-19.
MLA	Dongyuan Zhang,et al."HCF243 Encodes a Chloroplast-localized Protein Involved in the D1 Protein Dynamics of the Arabidopsis PSII Complex".Plant Physiology 157.2(2011):608-19.