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An Arabidopsis transcription factor, AtbZIP60, regulates the endoplasmic reticulum stress response in a manner unique to plants
Open accessAbstract
Analysis of transcripts of 75 genes encoding putative basic leucine zipper (bZIP) transcription factors in the Arabidopsis genome identified AtbZIP60 , which was induced by tunicamycin. AtbZIP60 encodes a predicted protein of 295 aa with a putative transmembrane domain near its C terminus after a bZIP domain. A truncated form of AtbZIP60 without a transmembrane domain (AtbZIP60ΔC) fused with GFP localized to the nucleus, suggesting translocation of native protein to the nucleus by release from the membrane. AtbZIP60 was also induced by DTT and azetidine-2-carboxylate, which induce the endoplasmic reticulum (ER) stress response (also called the unfolded protein response). Expression of AtbZIP60ΔC clearly activated any of three BiP and two calnexin promoters in a dual luciferase assay using protoplasts of cultured cells. The induction was considered to be through cis-elements plant-specific unfolded protein response element and ER stress-response element. Interestingly, AtbZIP60ΔC also appeared to induce the expression of AtbZIP60 through an ER stress-response element-like sequence in the promoter of AtbZIP60 . These characteristics of AtbZIP60 imply a signal transduction pathway of the ER stress response unique to plants.
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Mutation of the mouse klotho gene leads to a syndrome resembling ageing
Kuro-o, M., Matsumura, Y., Aizawa, H., Kawaguchi, H., Suga, T., Utsugi, T., Ohyama, Y., Kurabayashi, M., Kaname, T., Kume, E., et al. (1997) · Nature · doi:10.1038/36285 · Cited by 3,837
ER Stress Induces Cleavage of Membrane-Bound ATF6 by the Same Proteases that Process SREBPs
Ye, J., Rawson, R. B., Komuro, R., Chen, X., Davé, U. P., Prywes, R., Brown, M. S., & Goldstein, J. L. (2000) · Molecular Cell · doi:10.1016/s1097-2765(00)00133-7 · Cited by 1,871
Yoshida, H., Okada, T., Haze, K., Yanagi, H., Yura, T., Negishi, M., & Mori, K. (2000) · Molecular and Cellular Biology · doi:10.1128/mcb.20.18.6755-6767.2000 · Cited by 934
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Polyamines: essential factors for growth and survival
Kusano, T., Berberich, T., Tateda, C., & Takahashi, Y. (2008) · Planta · doi:10.1007/s00425-008-0772-7 · Cited by 892
Endoplasmic Reticulum Stress Responses in Plants
Howell, S. H. (2013) · Annual Review of Plant Biology · doi:10.1146/annurev-arplant-050312-120053 · Cited by 560
In Posidonia oceanica cadmium induces changes in DNA methylation and chromatin patterning
Greco, M., Chiappetta, A., Bruno, L., & Bitonti, M. B. (2012) · Journal of Experimental Botany · doi:10.1093/jxb/err313 · Cited by 538
Deng, Y., Humbert, S., Liu, J.-X., Srivastava, R., Rothstein, S. J., & Howell, S. H. (2011) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1102117108 · Cited by 473
The molecular basis of heat stress responses in plants
Kan, Y., Mu, X.-R., Gao, J., Lin, H.-X., & Lin, Y. (2023) · Molecular Plant · doi:10.1016/j.molp.2023.09.013 · Cited by 355
Metadata
- Authors
- Iwata, Y., & Koizumi, N.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 2005-03-21
- Volume
- 102
- Issue
- 14
- Pages
- 5280-5285
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2006196684
- Cited by
- 352
- References
- 3
- FWCI
- 5.57
- Type
- journal article
- Language
- en
- Open access
- green
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