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ABI2, a second protein phosphatase 2C involved in abscisic acid signal transduction in Arabidopsis
Abstract
The abi2‐1 (abscisic acid insensitive) mutant of Arabidopsis thaliana shows abscisic acid (ABA) insensitivity with respect to seed germination and vegetative ABA responses. We identified the ABI2 gene by a combination of positional mapping and homology to ABI1. The ABI2 protein shows 80% amino acid sequence identity to ABI1, a protein phosphatase 2C (PP2C) involved in ABA signaling. The mutation that confers the abi2‐1 phenotype is equivalent to the mutation previously identified in abi1‐1 and the resulting Gly 168 Asp abi2 protein shows a reduced PP2C activity. Thus, a pair of highly homologous PP2Cs regulate ABA signaling.
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Citations
Cited by
Abscisic Acid Synthesis and Response
Finkelstein, R. (2013) · The Arabidopsis Book · doi:10.1199/tab.0166 · Cited by 1,154
G UARD C ELL S IGNAL T RANSDUCTION
Schroeder, J. I., Allen, G. J., Hugouvieux, V., Kwak, J. M., & Waner, D. (2001) · Annual Review of Plant Physiology and Plant Molecular Biology · doi:10.1146/annurev.arplant.52.1.627 · Cited by 1,153
Molecular Basis of the Core Regulatory Network in ABA Responses: Sensing, Signaling and Transport
Umezawa, T., Nakashima, K., Miyakawa, T., Kuromori, T., Tanokura, M., Shinozaki, K., & Yamaguchi-Shinozaki, K. (2010) · Plant and Cell Physiology · doi:10.1093/pcp/pcq156 · Cited by 929
Hubbard, K. E., Nishimura, N., Hitomi, K., Getzoff, E. D., & Schroeder, J. I. (2010) · Genes & Development · doi:10.1101/gad.1953910 · Cited by 667
Interactions between Abscisic Acid and Ethylene Signaling Cascades
Beaudoin, N., Serizet, C., Gosti, F., & Giraudat, J. (2000) · The Plant Cell · doi:10.1105/tpc.12.7.1103 · Cited by 621
Metadata
- Authors
- Rodriguez, P. L., Benning, G., & Grill, E.
- Venue
- FEBS Letters
- Publisher
- Wiley
- Published
- 1998-01-16
- Volume
- 421
- Issue
- 3
- Pages
- 185-190
- ISSN
- 0014-5793 (ISSN-L)
- 1873-3468
- OpenAlex
- W1993171576
- Cited by
- 249
- References
- 0
- FWCI
- 16.35
- Type
- journal article
- Language
- en
- Open access
- closed
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- Rodriguez, P. L., Benning, G., & Grill, E. (1998). ABI2, a second protein phosphatase 2C involved in abscisic acid signal transduction in Arabidopsis. FEBS Letters. https://doi.org/10.1016/s0014-5793(97)01558-5
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