Redox-dependent translocation of the heat shock transcription factor AtHSFA8 from the cytosol to the nucleus in Arabidopsis thaliana

Giesguth M, Sahm A, Simon S, Dietz K-J (2015)
FEBS letters 589(6): 718-725.

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Journal Article | Original Article | Published | English

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Fakultät für Biologie > Biochemie und Physiologie der Pflanzen
Abstract
The hypothesis is tested that some heat stress transcription factors (HSFs) are activated after formation of inter- or intramolecular disulfide bonds. Based on in silico analyses we identified conserved cysteinyl residues in AtHSFA8 that might function as redox sensors in plants. AtHSFA8 represents a redox-sensitive transcription factor since upon treatment of protoplasts with H2O2 YFP-labeled HSFA8 was translocated to the nucleus in a time-dependent manner. Site-directed mutagenesis of the conserved residues Cys24 and Cys269 blocked translocation of HSFA8 to the nucleus. The findings concur with a model where HSFA8 functions as redox sensing transcription factor within the stress-responsive transcriptional network.
Publishing Year
2015
ISSN
1873-3468
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Giesguth M, Sahm A, Simon S, Dietz K-J. Redox-dependent translocation of the heat shock transcription factor AtHSFA8 from the cytosol to the nucleus in Arabidopsis thaliana. FEBS letters. 2015;589(6):718-725.
Giesguth, M., Sahm, A., Simon, S., & Dietz, K. - J. (2015). Redox-dependent translocation of the heat shock transcription factor AtHSFA8 from the cytosol to the nucleus in Arabidopsis thaliana. FEBS letters, 589(6), 718-725. doi:10.1016/j.febslet.2015.01.039
Giesguth, M., Sahm, A., Simon, S., and Dietz, K. - J. (2015). Redox-dependent translocation of the heat shock transcription factor AtHSFA8 from the cytosol to the nucleus in Arabidopsis thaliana. FEBS letters 589, 718-725.
Giesguth, M., et al., 2015. Redox-dependent translocation of the heat shock transcription factor AtHSFA8 from the cytosol to the nucleus in Arabidopsis thaliana. FEBS letters, 589(6), p 718-725.
M. Giesguth, et al., “Redox-dependent translocation of the heat shock transcription factor AtHSFA8 from the cytosol to the nucleus in Arabidopsis thaliana”, FEBS letters, vol. 589, 2015, pp. 718-725.
Giesguth, M., Sahm, A., Simon, S., Dietz, K.-J.: Redox-dependent translocation of the heat shock transcription factor AtHSFA8 from the cytosol to the nucleus in Arabidopsis thaliana. FEBS letters. 589, 718-725 (2015).
Giesguth, Miriam, Sahm, Arne, Simon, Swen, and Dietz, Karl-Josef. “Redox-dependent translocation of the heat shock transcription factor AtHSFA8 from the cytosol to the nucleus in Arabidopsis thaliana”. FEBS letters 589.6 (2015): 718-725.
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