PlantRegMap/PlantTFDB v5.0
Plant Transcription Factor Database
Previous version: v3.0 v4.0
Arabidopsis thaliana
G2-like Family
Species TF ID Description
AT1G13300.1G2-like family protein
AT1G14600.1G2-like family protein
AT1G25550.1G2-like family protein
AT1G32240.1G2-like family protein
AT1G49560.1G2-like family protein
AT1G68670.1G2-like family protein
AT1G69580.1G2-like family protein
AT1G69580.2G2-like family protein
AT1G79430.1G2-like family protein
AT1G79430.2G2-like family protein
AT2G01060.1G2-like family protein
AT2G01060.2G2-like family protein
AT2G02060.1G2-like family protein
AT2G03500.1G2-like family protein
AT2G06020.1G2-like family protein
AT2G20400.1G2-like family protein
AT2G20570.1GBF's pro-rich region-interacting factor 1
AT2G20570.2GBF's pro-rich region-interacting factor 1
AT2G38300.1G2-like family protein
AT2G40260.1G2-like family protein
AT2G40970.1G2-like family protein
AT2G42660.1G2-like family protein
AT3G04030.1G2-like family protein
AT3G04030.2G2-like family protein
AT3G04030.3G2-like family protein
AT3G04450.1G2-like family protein
AT3G04450.2G2-like family protein
AT3G10760.1G2-like family protein
AT3G12730.1G2-like family protein
AT3G13040.1G2-like family protein
AT3G13040.2G2-like family protein
AT3G19070.1G2-like family protein
AT3G24120.1G2-like family protein
AT3G24120.2G2-like family protein
AT3G25790.1G2-like family protein
AT3G46640.1G2-like family protein
AT3G46640.2G2-like family protein
AT3G46640.3G2-like family protein
AT4G04580.1G2-like family protein
AT4G13640.1G2-like family protein
AT4G13640.2G2-like family protein
AT4G17695.1G2-like family protein
AT4G28610.1phosphate starvation response 1
AT4G37180.1G2-like family protein
AT4G37180.2G2-like family protein
AT5G05090.1G2-like family protein
AT5G06800.1G2-like family protein
AT5G06800.2G2-like family protein
AT5G16560.1G2-like family protein
AT5G18240.1myb-related protein 1
AT5G18240.2myb-related protein 1
AT5G18240.3myb-related protein 1
AT5G18240.4myb-related protein 1
AT5G18240.5myb-related protein 1
AT5G29000.1G2-like family protein
AT5G29000.2G2-like family protein
AT5G29000.3G2-like family protein
AT5G29000.4G2-like family protein
AT5G42630.1G2-like family protein
AT5G42630.2G2-like family protein
AT5G44190.1GOLDEN2-like 2
AT5G45580.1G2-like family protein
AT5G59570.1G2-like family protein
AT5G62110.1G2-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