Analysis of functional domains and binding sequences of Arabidopsis transcription factor ESR1
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- Banno Hiroharu
- Department of Environmental Biology, College of Bioscience and Biotechnology, Chubu University
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- Mase Hiromi
- Department of Environmental Biology, College of Bioscience and Biotechnology, Chubu University
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- Maekawa Koji
- Department of Environmental Biology, College of Bioscience and Biotechnology, Chubu University
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Abstract
The Arabidopsis ESR1 is thought to be a key gene for commitment to in vitro shoot regeneration in tissue culture. The ESR1 gene encodes a putative transcription factor. We examined the DNA-binding potential for specific sequences. Recombinant ESR1 protein specifically bound to the GCC box, known as the ethylene-responsive element. In addition, ESR1 was localized to the nucleus when expressed in onion epidermal cells. Deletion experiments revealed that the DNA-binding domain or the C-terminal region of ESR1 is essential for ESR1 overexpression to enhance shoot regeneration. The C-terminal region may be involved in transcriptional regulation by ESR1. These results suggest that ESR1 functions as a transcription factor and that its transcriptional regulation is important for the initiation of shoot regeneration.
Journal
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- Plant Biotechnology
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Plant Biotechnology 23 (3), 303-308, 2006
Japanese Society for Plant Biotechnology
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Details 詳細情報について
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- CRID
- 1390282679303867520
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- NII Article ID
- 10021908820
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- NII Book ID
- AA11250821
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- COI
- 1:CAS:528:DC%2BD28XntVWhtb0%3D
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- ISSN
- 13476114
- 13424580
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- NDL BIB ID
- 7943931
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed