PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Oryza brachyantha
G2-like Family
Species TF ID Description
OB01G14760.1G2-like family protein
OB01G18980.1G2-like family protein
OB01G23170.1G2-like family protein
OB01G45780.1G2-like family protein
OB01G54640.1G2-like family protein
OB02G12880.1G2-like family protein
OB02G14830.1G2-like family protein
OB02G19030.1G2-like family protein
OB02G22950.1G2-like family protein
OB02G34860.1G2-like family protein
OB02G36030.1G2-like family protein
OB02G36270.1G2-like family protein
OB02G43730.1G2-like family protein
OB03G12320.1G2-like family protein
OB03G25560.1G2-like family protein
OB03G25800.1G2-like family protein
OB03G34420.1G2-like family protein
OB03G35630.1G2-like family protein
OB03G42230.1G2-like family protein
OB03G42360.1G2-like family protein
OB04G28940.1G2-like family protein
OB04G30960.1G2-like family protein
OB04G35670.1G2-like family protein
OB05G28330.1G2-like family protein
OB05G28670.1G2-like family protein
OB06G10790.1G2-like family protein
OB06G22250.1G2-like family protein
OB06G25370.1G2-like family protein
OB06G28540.1G2-like family protein
OB06G31630.1G2-like family protein
OB06G32040.1G2-like family protein
OB06G34350.1G2-like family protein
OB07G11040.1G2-like family protein
OB07G18720.1G2-like family protein
OB07G28430.1G2-like family protein
OB07G32210.1G2-like family protein
OB08G13890.1G2-like family protein
OB08G20210.1G2-like family protein
OB08G20220.1G2-like family protein
OB08G20230.1G2-like family protein
OB08G23260.1G2-like family protein
OB08G24440.1G2-like family protein
OB09G12860.1G2-like family protein
OB09G12870.1G2-like family protein
OB09G16020.1G2-like family protein
OB10G19740.1G2-like family protein
OB10G24340.1G2-like family protein
OB11G10130.1G2-like family protein
OB12G10410.1G2-like family protein
OB12G24150.1G2-like family protein
OB12G24300.1G2-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