PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Fragaria vesca
G2-like Family
Species TF ID Description
mrna00600.1-v1.0-hybridG2-like family protein
mrna02359.1-v1.0-hybridG2-like family protein
mrna03865.1-v1.0-hybridG2-like family protein
mrna04220.1-v1.0-hybridG2-like family protein
mrna05518.1-v1.0-hybridG2-like family protein
mrna08032.1-v1.0-hybridG2-like family protein
mrna08317.1-v1.0-hybridG2-like family protein
mrna09331.1-v1.0-hybridG2-like family protein
mrna09780.1-v1.0-hybridG2-like family protein
mrna10484.1-v1.0-hybridG2-like family protein
mrna13487.1-v1.0-hybridG2-like family protein
mrna13545.1-v1.0-hybridG2-like family protein
mrna13743.1-v1.0-hybridG2-like family protein
mrna15055.1-v1.0-hybridG2-like family protein
mrna15767.1-v1.0-hybridG2-like family protein
mrna16677.1-v1.0-hybridG2-like family protein
mrna16679.1-v1.0-hybridG2-like family protein
mrna17673.1-v1.0-hybridG2-like family protein
mrna17750.1-v1.0-hybridG2-like family protein
mrna18340.1-v1.0-hybridG2-like family protein
mrna19641.1-v1.0-hybridG2-like family protein
mrna19709.1-v1.0-hybridG2-like family protein
mrna19866.1-v1.0-hybridG2-like family protein
mrna19867.1-v1.0-hybridG2-like family protein
mrna21014.1-v1.0-hybridG2-like family protein
mrna21073.1-v1.0-hybridG2-like family protein
mrna22647.1-v1.0-hybridG2-like family protein
mrna24094.1-v1.0-hybridG2-like family protein
mrna24269.1-v1.0-hybridG2-like family protein
mrna26707.1-v1.0-hybridG2-like family protein
mrna26708.1-v1.0-hybridG2-like family protein
mrna26712.1-v1.0-hybridG2-like family protein
mrna27918.1-v1.0-hybridG2-like family protein
mrna29677.1-v1.0-hybridG2-like family protein
mrna30204.1-v1.0-hybridG2-like family protein
mrna30953.1-v1.0-hybridG2-like family protein
mrna31899.1-v1.0-hybridG2-like family protein
G2-like Family Introduction

The GLK proteins are members of the recently categorized GARP superfamily of transcription factors (Riechmann et al., 2000) defined by G2 in maize; the Arabidopsis RESPONSE REGULATOR-B (ARR-B) proteins (Imamura et al., 1999); and the PHOSPHATE STARVATION RESPONSE1 (PSR1) protein of Chlamydomonas (Wykoff et al., 1999). In the case of G2, three of the four defining features of most transcription factors have been verified experimentally in heterologous systems. G2 is nuclearlocalized (Hall et al., 1998), is able to transactivate reporter gene expression, and can both homo-dimerize and heterodimerize with ZmGLK1 (Rossini et al., 2001). DNA-binding activity of GLK proteins has yet to be demonstrated,however, the putative DNA-binding domain is highly conserved with domains in other GARP proteins such as ARR1 and ARR2 (Riechmann et al., 2000). Notably, ARR1 and ARR2 have been shown to bind DNA (Sakai et al.,2000), thus it is likely that GLK proteins act as transcriptional regulators of chloroplast development.

The GLK proteins are members of the GARP superfamily of transcription factors, and phylogenetic analysis demonstrates that the maize, rice and Arabidopsis GLK gene pairs comprise a distinct group within the GARP superfamily. Further phylogenetic analysis suggests that the gene pairs arose through separate duplication events in the monocot and dicot lineages. As in rice, AtGLK1 and AtGLK2 are expressed in partially overlapping domains in photosynthetic tissue. GLK genes therefore regulate chloroplast development in diverse plant species.

Fitter DW, Martin DJ, Copley MJ, Scotland RW, Langdale JA.
GLK gene pairs regulate chloroplast development in diverse plant species.
Plant J. 2002 Sep;31(6):713-27.
PMID: 12220263