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Updated: Jul 19, 2026

Assaying Proteasomal Degradation in a Cell-free System in Plants
Published on: March 26, 2014
[The function of F-box protein in plant growth and development]
Cai-Li Bi1, Xu Liu, Xue-Yong Zhang
1Key Laboratory of Crop Germplasm Resources and Biotechnology, MOA, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China. beicaili@eyou.com
Abstract:
Ubiquitin-mediated proteolysis is involved in many biological processes in eukaryotes. SCF complex is a very important ubiquitin E3 ligase which has been exploited very well in plants. F-box protein characterized by an F-box motif is a subunit of SCF complex, which works as determinant in substrate recognition. Currently, many F-box proteins have been identified in plants which are involving in hormone (e.g., ethylene, auxin, gibberellin and jasmonate ) signal transduction and biological processes, such as self-incompatibility and floral development. F-box proteins may also participate stress response in plants. Recent study suggested that the Arabidopsis F-box protein TIR1 is an auxin receptor. Therefore, F-box protein mediated proteolysis may be an important gene expression mechanism in plants.
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