PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Oryza sativa subsp. japonica
G2-like Family
Species TF ID Description
LOC_Os01g08160.1G2-like family protein
LOC_Os01g13740.1G2-like family protein
LOC_Os01g13740.2G2-like family protein
LOC_Os01g20700.1G2-like family protein
LOC_Os01g62660.1G2-like family protein
LOC_Os01g74020.1G2-like family protein
LOC_Os02g04640.1G2-like family protein
LOC_Os02g07170.1G2-like family protein
LOC_Os02g07770.1G2-like family protein
LOC_Os02g14490.1G2-like family protein
LOC_Os02g22020.1G2-like family protein
LOC_Os02g45080.1G2-like family protein
LOC_Os02g46940.1G2-like family protein
LOC_Os02g47190.1G2-like family protein
LOC_Os03g03760.1G2-like family protein
LOC_Os03g20900.1G2-like family protein
LOC_Os03g21240.1G2-like family protein
LOC_Os03g45194.1G2-like family protein
LOC_Os03g55590.1G2-like family protein
LOC_Os03g55590.3G2-like family protein
LOC_Os03g55590.4G2-like family protein
LOC_Os03g55760.1G2-like family protein
LOC_Os04g47890.1G2-like family protein
LOC_Os04g56990.1G2-like family protein
LOC_Os04g56990.2G2-like family protein
LOC_Os04g56990.3G2-like family protein
LOC_Os05g32880.1G2-like family protein
LOC_Os05g34110.1G2-like family protein
LOC_Os05g40960.1G2-like family protein
LOC_Os05g41240.1G2-like family protein
LOC_Os05g41240.2G2-like family protein
LOC_Os05g41240.3G2-like family protein
LOC_Os06g24070.1G2-like family protein
LOC_Os06g35140.1G2-like family protein
LOC_Os06g40710.1G2-like family protein
LOC_Os06g45410.1G2-like family protein
LOC_Os06g45890.1G2-like family protein
LOC_Os06g49040.1G2-like family protein
LOC_Os07g02800.2G2-like family protein
LOC_Os07g02800.3G2-like family protein
LOC_Os07g02800.4G2-like family protein
LOC_Os07g25710.1G2-like family protein
LOC_Os07g25710.2G2-like family protein
LOC_Os07g25710.3G2-like family protein
LOC_Os07g25710.4G2-like family protein
LOC_Os07g48596.1G2-like family protein
LOC_Os08g06370.1G2-like family protein
LOC_Os08g25799.1G2-like family protein
LOC_Os08g25820.1G2-like family protein
LOC_Os08g25820.2G2-like family protein
LOC_Os08g33050.1G2-like family protein
LOC_Os08g33750.1G2-like family protein
LOC_Os08g33750.2G2-like family protein
LOC_Os09g12750.1G2-like family protein
LOC_Os09g12770.1G2-like family protein
LOC_Os09g12770.2G2-like family protein
LOC_Os09g23200.1G2-like family protein
LOC_Os10g32600.1G2-like family protein
LOC_Os10g39550.1G2-like family protein
LOC_Os11g01480.1G2-like family protein
LOC_Os12g01490.1G2-like family protein
LOC_Os12g39640.1G2-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