ArticlePlant physiology2007
Glutathione S-transferase interacting with far-red insensitive 219 is involved in phytochrome A-mediated signaling in Arabidopsis.
Article in Plant physiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.
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54 citing papers in PubMed.
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- Comparison of Light Condition-Dependent Differences in the Accumulation and Subcellular Localization of Glutathione inInternational journal of molecular sciences · 2021Article
- Sexual and Apogamous Species of Woodferns Show Different Protein and Phytohormone Profiles.Frontiers in plant science · 2021Article
- Glutathione S-transferase: a versatile protein family.3 Biotech · 2020Review
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- Genetic mapping of green curd gene Gr in cauliflower.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2020Article
- Functional, Structural and Biochemical Features of Plant Serinyl-Glutathione Transferases.Frontiers in plant science · 2019Review
- Proteomic and Biochemical Changes during Senescence ofInternational journal of molecular sciences · 2018Article
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6 authors.
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Abstract
Far-red (FR) insensitive 219 (FIN219) was previously shown to be involved in phytochrome A-mediated FR light signaling. To further understand its function and regulatory relation with other light-signaling components, a yeast two-hybrid approach was used to isolate FIN219-interacting partners. Here, we demonstrate that FIN219-interacting protein 1 (FIP1) interacts with FIN219 in vitro and in vivo and is composed of 217 amino acids that belong to the tau class of the large glutathione S-transferase gene family. FIP1 was further shown to have glutathione S-transferase activity. The gain of function and partial loss of function of FIP1 resulted in a hyposensitive hypocotyl phenotype under continuous FR (cFR) light and a delayed flowering phenotype under long-day conditions, which suggests that FIP1 may exist in a complex to function in the regulation of Arabidopsis (Arabidopsis thaliana) development. In addition, FIP1 mRNA was down-regulated in the suppressor of phytochrome A-105 1 mutant and differentially expressed in constitutive photomorphogenic 1-4 (cop1-4) and cop1-5 mutants under cFR. Intriguingly, FIP1 expression was up-regulated in the fin219 mutant under all light conditions, except cFR. Furthermore, promoter activity assays revealed that FIP1 expression was light dependent, mainly associated with vascular tissues, and developmentally regulated. Subcellular localization studies revealed that the beta-glucuronidase-FIP1 fusion protein was localized in the nucleus and cytoplasm. Taken together, these data indicate that FIP1 may interact with FIN219 to regulate cell elongation and flowering in response to light.
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