PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Brachypodium stacei
G2-like Family
Species TF ID Description
Brast01G007000.1.pG2-like family protein
Brast01G091100.1.pG2-like family protein
Brast01G282100.1.pG2-like family protein
Brast01G323400.1.pG2-like family protein
Brast01G364600.1.pG2-like family protein
Brast02G073400.1.pG2-like family protein
Brast02G165900.1.pG2-like family protein
Brast02G167900.1.pG2-like family protein
Brast02G236000.1.pG2-like family protein
Brast02G236000.2.pG2-like family protein
Brast02G236000.3.pG2-like family protein
Brast02G251300.1.pG2-like family protein
Brast02G318000.1.pG2-like family protein
Brast02G319200.1.pG2-like family protein
Brast03G019600.1.pG2-like family protein
Brast03G100800.1.pG2-like family protein
Brast03G100800.2.pG2-like family protein
Brast03G100800.3.pG2-like family protein
Brast03G100800.4.pG2-like family protein
Brast03G100900.1.pG2-like family protein
Brast03G185500.1.pG2-like family protein
Brast03G232100.1.pG2-like family protein
Brast03G237700.1.pG2-like family protein
Brast04G063500.1.pG2-like family protein
Brast04G094200.1.pG2-like family protein
Brast04G094200.2.pG2-like family protein
Brast04G096100.1.pG2-like family protein
Brast04G108200.1.pG2-like family protein
Brast04G222000.1.pG2-like family protein
Brast04G239100.1.pG2-like family protein
Brast04G283000.1.pG2-like family protein
Brast04G305800.1.pG2-like family protein
Brast04G305800.2.pG2-like family protein
Brast04G340300.1.pG2-like family protein
Brast04G340300.2.pG2-like family protein
Brast05G001100.1.pG2-like family protein
Brast05G092800.1.pG2-like family protein
Brast05G092900.1.pG2-like family protein
Brast05G092900.2.pG2-like family protein
Brast05G092900.3.pG2-like family protein
Brast05G118400.1.pG2-like family protein
Brast05G297400.1.pG2-like family protein
Brast06G008600.1.pG2-like family protein
Brast06G154600.1.pG2-like family protein
Brast06G154600.2.pG2-like family protein
Brast06G154600.3.pG2-like family protein
Brast06G154600.4.pG2-like family protein
Brast06G234000.1.pG2-like family protein
Brast07G100200.1.pG2-like family protein
Brast07G127500.1.pG2-like family protein
Brast07G127500.2.pG2-like family protein
Brast07G166400.1.pG2-like family protein
Brast07G166400.2.pG2-like family protein
Brast07G183800.1.pG2-like family protein
Brast07G188100.1.pG2-like family protein
Brast07G211400.1.pG2-like family protein
Brast07G216700.1.pG2-like family protein
Brast08G077900.1.pG2-like family protein
Brast08G077900.2.pG2-like family protein
Brast08G080400.1.pG2-like family protein
Brast08G121900.1.pG2-like family protein
Brast09G173800.1.pG2-like family protein
Brast09G194400.1.pG2-like family protein
Brast09G247900.1.pG2-like family protein
Brast09G247900.2.pG2-like family protein
Brast09G247900.3.pG2-like family protein
Brast09G247900.4.pG2-like family protein
Brast09G247900.5.pG2-like family protein
Brast10G031800.1.pG2-like family protein
Brast10G031800.2.pG2-like family protein
Brast10G125400.1.pG2-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