doi: 10.1016/j.febslet.2006.01.048.
Epub 2006 Jan 26.
The conserved Ala37 in the ERF/AP2 domain is essential for binding with the DRE element and the GCC box
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- PMID: 16457823
- DOI: 10.1016/j.febslet.2006.01.048
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The conserved Ala37 in the ERF/AP2 domain is essential for binding with the DRE element and the GCC box
FEBS Lett.
.
Free article
Abstract
Four AP2/EREBP genes encoding putative ethylene-responsive element binding factor (ERF)/AP2 domains were cloned from Brassica napus, and these genes could be induced by low temperature, ethylene, drought, high salinity, abscisic acid and jasmonate treatments. These four genes, named BnDREBIII-1 to BnDREBIII-4, were highly homologous and the 37th amino acid was the only difference among their ERF/AP2 domains. BnDREBIII-1 was demonstrated to be able to bind to both dehydration-responsive element and the GCC box and transactivate the expression of downstream genes, while BnDREBIII-4 could bind neither. Further results suggested that Ala37 might play a crucial role in the DNA binding or the stability of the ERF/AP2 domain.
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