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Transcriptional activation by Arabidopsis GT‐1 may be through interaction with TFIIA–TBP–TATA complex

Transcriptional activation by Arabidopsis GT‐1 may be through interaction with TFIIA–TBP–TATA... GT‐1 belongs to the class of trihelix DNA‐binding proteins and binds to a promoter sequence found in many different genes. Data presented in this report show that GT‐1 contains a trans‐activation function in yeast and in plant cells. However, in tobacco BY‐2 protoplasts, this activity functions only when an internal region containing the DNA‐binding domain is deleted. Gel‐shift and co‐immunoprecipitation assays have revealed that GT‐1 can interact with and stabilize the TFIIA–TBP–TATA complex. These results suggest that GT‐1 may activate transcription through direct inter‐ action with the transcriptional pre‐initiation complex. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The Plant Journal Wiley

Transcriptional activation by Arabidopsis GT‐1 may be through interaction with TFIIA–TBP–TATA complex

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References (24)

Publisher
Wiley
Copyright
Copyright © 1999 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0960-7412
eISSN
1365-313X
DOI
10.1046/j.1365-313x.1999.00482.x
Publisher site
See Article on Publisher Site

Abstract

GT‐1 belongs to the class of trihelix DNA‐binding proteins and binds to a promoter sequence found in many different genes. Data presented in this report show that GT‐1 contains a trans‐activation function in yeast and in plant cells. However, in tobacco BY‐2 protoplasts, this activity functions only when an internal region containing the DNA‐binding domain is deleted. Gel‐shift and co‐immunoprecipitation assays have revealed that GT‐1 can interact with and stabilize the TFIIA–TBP–TATA complex. These results suggest that GT‐1 may activate transcription through direct inter‐ action with the transcriptional pre‐initiation complex.

Journal

The Plant JournalWiley

Published: Jun 1, 1999

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