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A transcriptional activation domain of ATMYB2, a drought‐inducible Arabidopsis Myb‐related protein

A transcriptional activation domain of ATMYB2, a drought‐inducible Arabidopsis Myb‐related protein Trans‐activation activity of ATMYB2, a drought‐inducible Myb‐related protein in Arabidopsis thaliana, was analyzed using a transient assay of Arabidopsis leaf protoplasts. ATMYB2 activated the transcription of a reporter gene from the MYB‐binding site in a sequence‐specific manner. Deletion of the C‐terminal region of ATMYB2 reduced the trans‐activation of the reporter gene, indicating that the acidic region at the C‐terminus of ATMYB2 is required for transcriptional activation. The domain exchange analysis with the yeast GAL4 revealed that the C‐terminal acidic region of ATMYB2 contains a sufficient domain for trans‐activation. These results indicate that ATMYB2 acts as a transcriptional activator and that the C‐terminal acidic region of ATMYB2 can function as a transcriptional activation domain. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The Plant Journal Wiley

A transcriptional activation domain of ATMYB2, a drought‐inducible Arabidopsis Myb‐related protein

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Publisher
Wiley
Copyright
Copyright © 1996 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0960-7412
eISSN
1365-313X
DOI
10.1046/j.1365-313X.1996.10061145.x
Publisher site
See Article on Publisher Site

Abstract

Trans‐activation activity of ATMYB2, a drought‐inducible Myb‐related protein in Arabidopsis thaliana, was analyzed using a transient assay of Arabidopsis leaf protoplasts. ATMYB2 activated the transcription of a reporter gene from the MYB‐binding site in a sequence‐specific manner. Deletion of the C‐terminal region of ATMYB2 reduced the trans‐activation of the reporter gene, indicating that the acidic region at the C‐terminus of ATMYB2 is required for transcriptional activation. The domain exchange analysis with the yeast GAL4 revealed that the C‐terminal acidic region of ATMYB2 contains a sufficient domain for trans‐activation. These results indicate that ATMYB2 acts as a transcriptional activator and that the C‐terminal acidic region of ATMYB2 can function as a transcriptional activation domain.

Journal

The Plant JournalWiley

Published: Dec 1, 1996

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