Crossref journal-article
Oxford University Press (OUP)
Plant Physiology (286)
Abstract

Abstract The biogenesis and assembly of photosynthetic multisubunit protein complexes is assisted by a series of nucleus-encoded auxiliary protein factors. In this study, we characterize the dac mutant of Arabidopsis (Arabidopsis thaliana), which shows a severe defect in the accumulation of the cytochrome b  6/f complex, and provide evidence suggesting that the efficiency of cytochrome b  6/f complex assembly is affected in the mutant. DAC is a thylakoid membrane protein with two predicted transmembrane domains that is conserved from cyanobacteria to vascular plants. Yeast (Saccharomyces cerevisiae) two-hybrid and coimmunoprecipitation analyses revealed a specific interaction between DAC and PetD, a subunit of the cytochrome b  6/f complex. However, DAC was found not to be an intrinsic component of the cytochrome b  6/f complex. In vivo chloroplast protein labeling experiments showed that the labeling rates of the PetD and cytochrome f proteins were greatly reduced, whereas that of the cytochrome b  6 protein remained normal in the dac mutant. DAC appears to be a novel factor involved in the assembly/stabilization of the cytochrome b  6/f complex, possibly through interaction with the PetD protein.

Bibliography

Xiao, J., Li, J., Ouyang, M., Yun, T., He, B., Ji, D., Ma, J., Chi, W., Lu, C., & Zhang, L. (2012). DAC Is Involved in the Accumulation of the Cytochrome b  6/f Complex in Arabidopsis    . Plant Physiology, 160(4), 1911–1922.

Authors 10
  1. Jianwei Xiao (first)
  2. Jing Li (additional)
  3. Min Ouyang (additional)
  4. Tao Yun (additional)
  5. Baoye He (additional)
  6. Daili Ji (additional)
  7. Jinfang Ma (additional)
  8. Wei Chi (additional)
  9. Congming Lu (additional)
  10. Lixin Zhang (additional)
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Dates
Type When
Created 12 years, 10 months ago (Oct. 5, 2012, 11:07 p.m.)
Deposited 4 years, 4 months ago (April 19, 2021, 10:18 p.m.)
Indexed 1 month ago (July 19, 2025, 11:24 p.m.)
Issued 12 years, 10 months ago (Oct. 5, 2012)
Published 12 years, 10 months ago (Oct. 5, 2012)
Published Online 12 years, 10 months ago (Oct. 5, 2012)
Published Print 12 years, 8 months ago (Dec. 5, 2012)
Funders 0

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@article{Xiao_2012, title={DAC Is Involved in the Accumulation of the Cytochrome b  6/f Complex in Arabidopsis    }, volume={160}, ISSN={1532-2548}, url={http://dx.doi.org/10.1104/pp.112.204891}, DOI={10.1104/pp.112.204891}, number={4}, journal={Plant Physiology}, publisher={Oxford University Press (OUP)}, author={Xiao, Jianwei and Li, Jing and Ouyang, Min and Yun, Tao and He, Baoye and Ji, Daili and Ma, Jinfang and Chi, Wei and Lu, Congming and Zhang, Lixin}, year={2012}, month=oct, pages={1911–1922} }