Plant Transcription Factor Database
Previous version: v3.0
Genlisea aurea
G2-like Family
Species TF ID Description
EPS58795.1G2-like family protein
EPS59369.1G2-like family protein
EPS59578.1G2-like family protein
EPS59635.1G2-like family protein
EPS59646.1G2-like family protein
EPS59788.1G2-like family protein
EPS60106.1G2-like family protein
EPS61215.1G2-like family protein
EPS61273.1G2-like family protein
EPS61709.1G2-like family protein
EPS62734.1G2-like family protein
EPS63207.1G2-like family protein
EPS64608.1G2-like family protein
EPS64893.1G2-like family protein
EPS65872.1G2-like family protein
EPS68009.1G2-like family protein
EPS68084.1G2-like family protein
EPS69048.1G2-like family protein
EPS69080.1G2-like family protein
EPS69168.1G2-like family protein
EPS70299.1G2-like family protein
EPS70357.1G2-like family protein
EPS71493.1G2-like family protein
EPS72669.1G2-like family protein
EPS72817.1G2-like family protein
EPS73182.1G2-like family protein
EPS73715.1G2-like family protein
EPS73950.1G2-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