The trihelix DNA-binding motif in higher plants is not restricted to the transcription factors GT-1 and GT-2.

Transcriptional Activation Activity and Definition of Nove1 Twin DNA Binding Domains with Reciproca1 Target Sequence Selectivity

GT-2 is a nove1 DNA binding protein that interacts with a triplet of functionally defined, positively acting GT-box motifs (GT1-bx, GT2-bx, and GT3-bx) in the rice phytochrome A gene (PHYA) promoter. Data from a transient transfection assay used here show that recombinant GT-2 enhanced transcription from both homologous and heterologous GT-box-containing promoters, thereby indicating that this ...

Several features of the GT-factor trihelix domain resemble those of the Myb DNA-binding domain.

It is generally believed that GT-factors, DNAbinding proteins with specificity for GT-elements, are present only in plants. However, the current study shows that several features of the GT-factor trihelix domain resemble those of the Myb DNA-binding domain. The GT-element was first identified as a regulatory component of a light up-regulated element (Box II or GT-1 binding site), which is prese...

Arabidopsis thaliana Trihelix Transcription factor AST 1 mediates 1 abiotic stress tolerance by binding to a novel AGAG - box and some 2 GT motifs 3

Identification and in silico characterization of soybean trihelix-GT and bHLH transcription factors involved in stress responses

Environmental stresses caused by either abiotic or biotic factors greatly affect agriculture. As for soybean [Glycine max (L.) Merril], one of the most important crop species in the world, the situation is not different. In order to deal with these stresses, plants have evolved a variety of sophisticated molecular mechanisms, to which the transcriptional regulation of target-genes by transcript...

Soybean Trihelix Transcription Factors GmGT-2A and GmGT-2B Improve Plant Tolerance to Abiotic Stresses in Transgenic Arabidopsis

BACKGROUND Trihelix transcription factors play important roles in light-regulated responses and other developmental processes. However, their functions in abiotic stress response are largely unclear. In this study, we identified two trihelix transcription factor genes GmGT-2A and GmGT-2B from soybean and further characterized their roles in abiotic stress tolerance. FINDINGS Both genes can be...