期刊
FEBS LETTERS
卷 588, 期 20, 页码 3665-3672出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.febslet.2014.08.010
关键词
VP16; Transcriptional repressor; Dominant activation; Mediator25 (Med25); Arabidopsis; FLOWERING LOCUS C (FLC)
资金
- Next Generation World-Leading Researchers Program [GS030]
Biological functions of only some plant transcriptional repressors are known owing to the lack of knockout lines or unclear phenotypes because of redundancy. Here we show that strong viral activation domain VP16 fusion to the transcriptional repressor FLOWERING LOCUS C reversed its function and caused a stronger phenotype than that of the multiple-knockout line of redundant genes, suggesting the potential of this technique to identify transcription factor function that cannot be detected in a single-knockout line. Loss-of-function of transcriptional coactivator Mediator25 did not affect VP16 activity despite their in vivo interaction, suggesting the existence of other key mechanism(s) in plants. (C) 2014 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
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