PlantTFDB
PlantRegMap/PlantTFDB v5.0
Plant Transcription Factor Database
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(e.g., LFY)
Arabidopsis thaliana
Trihelix Family
Species TF ID Description
Arabidopsis thaliana
(34)
AT1G13450.1Trihelix family protein
AT1G13450.2Trihelix family protein
AT1G13450.3Trihelix family protein
AT1G21200.1sequence-specific DNA binding transcription factors
AT1G31310.1Trihelix family protein
AT1G33240.1GT-2-like 1
AT1G54060.16B-interacting protein 1-like 1
AT1G76870.1
AT1G76880.1Trihelix family protein
AT1G76890.2Trihelix family protein
AT2G33550.1Trihelix family protein
AT2G35640.1Trihelix family protein
AT2G38250.1Trihelix family protein
AT2G44730.1Trihelix family protein
AT3G10000.1Trihelix family protein
AT3G10000.2Trihelix family protein
AT3G10030.1Trihelix family protein
AT3G10030.2Trihelix family protein
AT3G10040.1sequence-specific DNA binding transcription factors
AT3G11100.1sequence-specific DNA binding transcription factors
AT3G14180.1sequence-specific DNA binding transcription factors
AT3G24490.1Trihelix family protein
AT3G24860.1Trihelix family protein
AT3G25990.1Trihelix family protein
AT3G54390.1sequence-specific DNA binding transcription factors
AT3G58630.1sequence-specific DNA binding transcription factors
AT4G31270.1sequence-specific DNA binding transcription factors
AT5G01380.1Trihelix family protein
AT5G03680.1Trihelix family protein
AT5G05550.1sequence-specific DNA binding transcription factors
AT5G05550.2sequence-specific DNA binding transcription factors
AT5G28300.1Trihelix family protein
AT5G47660.1Trihelix family protein
AT5G63420.1Trihelix family protein
Trihelix Family Introduction

GT factors constitute a plant-specific transcription factor family with a DNA-binding domain that binds GT elements. The DNA-binding domain of GT factor, rich in basic and acidic amino acids and proline and glutamine residues, features a typical trihelix (helix-loop-helix-loop-helix) structure that determines the specific binding of GT elements; thus GT factors are also called trihelix transcription factors. GT elements are highly degenerate cis-elements with A/T-rich core sequences (Villain et al. 1996; Wang et al. 2004). Interaction between GT factors and GT elements has been implicated in the complex transcriptional regulation of many plant genes (Liu et al. 1999;Zhou 1999).

Fang Y, Xie K, Hou X, Hu H, Xiong L.
Systematic analysis of GT factor family of rice reveals a novel subfamily involved in stress responses.
Mol Genet Genomics, 2010. 283(2): p. 157-69.
PMID: 20039179