PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Oryza meridionalis
G2-like Family
Species TF ID Description
OMERI01G04960.1G2-like family protein
OMERI01G08840.1G2-like family protein
OMERI01G08840.2G2-like family protein
OMERI01G08840.3G2-like family protein
OMERI01G12020.1G2-like family protein
OMERI01G13130.1G2-like family protein
OMERI01G13130.2G2-like family protein
OMERI01G34110.2G2-like family protein
OMERI01G34110.4G2-like family protein
OMERI01G42240.1G2-like family protein
OMERI02G03860.1G2-like family protein
OMERI02G06020.1G2-like family protein
OMERI02G06400.1G2-like family protein
OMERI02G14870.1G2-like family protein
OMERI02G14870.2G2-like family protein
OMERI02G26760.1G2-like family protein
OMERI02G27920.1G2-like family protein
OMERI02G34900.1G2-like family protein
OMERI02G34900.2G2-like family protein
OMERI02G34900.3G2-like family protein
OMERI02G34900.4G2-like family protein
OMERI03G02220.1G2-like family protein
OMERI03G09340.1G2-like family protein
OMERI03G14370.1G2-like family protein
OMERI03G23850.1G2-like family protein
OMERI03G32430.1G2-like family protein
OMERI03G32430.2G2-like family protein
OMERI03G32640.1G2-like family protein
OMERI04G18450.1G2-like family protein
OMERI04G24260.1G2-like family protein
OMERI05G06680.1G2-like family protein
OMERI05G18910.1G2-like family protein
OMERI05G19140.1G2-like family protein
OMERI06G00680.1G2-like family protein
OMERI06G15340.1G2-like family protein
OMERI06G21260.1G2-like family protein
OMERI06G21260.2G2-like family protein
OMERI06G23830.1G2-like family protein
OMERI06G24530.1G2-like family protein
OMERI07G00590.1G2-like family protein
OMERI07G09960.1G2-like family protein
OMERI07G23330.1G2-like family protein
OMERI08G03690.1G2-like family protein
OMERI08G03690.2G2-like family protein
OMERI08G03690.3G2-like family protein
OMERI08G13070.1G2-like family protein
OMERI09G03700.1G2-like family protein
OMERI09G03700.2G2-like family protein
OMERI09G03700.3G2-like family protein
OMERI09G03700.4G2-like family protein
OMERI09G07260.1G2-like family protein
OMERI10G09420.1G2-like family protein
OMERI10G13750.1G2-like family protein
OMERI11G00630.1G2-like family protein
OMERI11G00820.1G2-like family protein
OMERI12G12170.1G2-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