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GrainGenes Reference Report: TAG-106-923

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Reference	TAG-106-923
Title	An EREBP/AP2-type protein in Triticum aestivum was a DRE-binding transcription factor induced by cold, dehydration and ABA stress
Journal	Theoretical and Applied Genetics
Year	2003
Volume	106
Pages	923-930
Author	Shen YG [ Show all 6 ]
Abstract	Summary: We characterize one transcription factor of DRE-binding proteins (TaDREB1) that was isolated from a drought-induced cDNA library of wheat (Triticum aestivum L.). TaDREB1 contains one conserved EREBP/AP2 domain, and shows similarity with Arabidopsis thaliana DREB family members in both overall amino-acid sequences and the secondary structure arrangement within the DNA-binding motifs. In yeast one-hybrid system, TaDREB1, can specially activate the genes fused with the promoter containing three tandemly repeated copies of the wild-type DRE sequence: TACCGACAT. In different wheat cultivars, the Ta DREB1 gene is induced by low temperature, salinity and drought; and the expression of Wcs120 that contains DRE motifs in its promoter is closely related to the expression of TaDREB1. These results suggest that TaDREB1 functions as a DRE-binding transcription factor in wheat. We also observed the dwarf phenotype in transgenic rice (T0) overexpressing TaDREB1
External Databases	Pubmed: 12647068
Keyword	[ Hide all but 1 of 44 ] aba abiotic stresses abscisic acid amino acid amino acid sequence ap2 domain arabidopsis cdna cdna library cis-acting element cold dehydration dna dna binding dna binding motifs domain dre-binding protein drought dwarf family freezing tolerance gene gene expression library mar member one-hybrid promoter rice salinity secondary structure sequence signal transduction similarities stress system temperature transcription transcription factor transgenic transgenic rice triticum wild-type yeast

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