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Title: RAF 2 is a RuBis CO assembly factor in Arabidopsis thaliana

Journal Article · · The Plant Journal
DOI:https://doi.org/10.1111/tpj.13849· OSTI ID:1432069
 [1];  [2];  [3];  [2];  [4];  [5];  [6];  [5];  [3];  [3];  [2]
  1. Biophysics of Photosynthesis VU University Amsterdam Amsterdam The Netherlands, Department of Chemistry and Biochemistry and Institute for Genomics and Proteomics UCLA Los Angeles CA USA
  2. Biophysics of Photosynthesis VU University Amsterdam Amsterdam The Netherlands
  3. Department of Chemistry and Biochemistry and Institute for Genomics and Proteomics UCLA Los Angeles CA USA
  4. School of Molecular Sciences and Center for Bioenergy and Photosynthesis Arizona State University Tempe AZ USA
  5. Department of Energy Plant Research Laboratory Department of Biochemistry and Molecular Biology Michigan State University East Lansing USA
  6. Horticulture and Product Physiology Group Wageningen University Wageningen The Netherlands

Summary Ribulose‐1,5‐bisphosphate carboxylase/oxygenase (RuBis CO ) catalyzes the reaction between gaseous carbon dioxide ( CO 2 ) and ribulose‐1,5‐bisphosphate. Although it is one of the most studied enzymes, the assembly mechanisms of the large hexadecameric RuBis CO is still emerging. In bacteria and in the C4 plant Zea mays , a protein with distant homology to p terin‐4α‐ c arbinolamine d ehydratase ( PCD ) has recently been shown to be involved in RuBis CO assembly. However, studies of the homologous PCD ‐like protein ( RAF 2, RuBis CO assembly factor 2) in the C3 plant Arabidopsis thaliana ( A . thaliana ) have so far focused on its role in hormone and stress signaling. We investigated whether A . thaliana RAF 2 is also involved in RuBis CO assembly. We localized RAF 2 to the soluble chloroplast stroma and demonstrated that raf2 A . thaliana mutant plants display a severe pale green phenotype with reduced levels of stromal RuBis CO . We concluded that the RAF 2 protein is probably involved in RuBis CO assembly in the C3 plant A . thaliana .

Sponsoring Organization:
USDOE
Grant/Contract Number:
DE‐FG02‐09‐ER16123
OSTI ID:
1432069
Journal Information:
The Plant Journal, Journal Name: The Plant Journal Vol. 94 Journal Issue: 1; ISSN 0960-7412
Publisher:
Wiley-BlackwellCopyright Statement
Country of Publication:
United Kingdom
Language:
English
Citation Metrics:
Cited by: 10 works
Citation information provided by
Web of Science

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