PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Zea mays
G2-like Family
Species TF ID Description
AC155434.2_FGP005G2-like family protein
AC219020.4_FGP002G2-like family protein
AC233960.1_FGP003G2-like family protein
AC234155.1_FGP002G2-like family protein
AC234520.1_FGP003G2-like family protein
GRMZM2G006477_P01G2-like family protein
GRMZM2G006477_P02G2-like family protein
GRMZM2G009060_P01G2-like family protein
GRMZM2G010920_P01G2-like family protein
GRMZM2G016370_P01G2-like family protein
GRMZM2G026833_P01G2-like family protein
GRMZM2G026833_P02G2-like family protein
GRMZM2G031870_P01G2-like family protein
GRMZM2G034563_P01G2-like family protein
GRMZM2G035370_P01G2-like family protein
GRMZM2G035370_P02G2-like family protein
GRMZM2G035370_P03G2-like family protein
GRMZM2G035370_P04G2-like family protein
GRMZM2G039074_P02G2-like family protein
GRMZM2G052544_P01G2-like family protein
GRMZM2G056400_P01G2-like family protein
GRMZM2G060485_P01G2-like family protein
GRMZM2G060834_P01G2-like family protein
GRMZM2G060834_P02G2-like family protein
GRMZM2G064197_P01G2-like family protein
GRMZM2G064197_P02G2-like family protein
GRMZM2G064197_P03G2-like family protein
GRMZM2G067702_P01G2-like family protein
GRMZM2G067702_P02G2-like family protein
GRMZM2G069525_P01G2-like family protein
GRMZM2G070865_P01G2-like family protein
GRMZM2G074908_P01G2-like family protein
GRMZM2G081671_P01G2-like family protein
GRMZM2G082264_P01G2-like family protein
GRMZM2G082264_P02G2-like family protein
GRMZM2G087804_P01G2-like family protein
GRMZM2G087804_P03G2-like family protein
GRMZM2G090230_P01G2-like family protein
GRMZM2G100176_P01G2-like family protein
GRMZM2G100709_P01G2-like family protein
GRMZM2G106185_P01G2-like family protein
GRMZM2G106185_P02G2-like family protein
GRMZM2G113742_P01G2-like family protein
GRMZM2G113742_P02G2-like family protein
GRMZM2G117193_P01G2-like family protein
GRMZM2G117193_P02G2-like family protein
GRMZM2G117193_P03G2-like family protein
GRMZM2G117854_P01G2-like family protein
GRMZM2G117854_P02G2-like family protein
GRMZM2G117854_P03G2-like family protein
GRMZM2G123308_P02G2-like family protein
GRMZM2G124495_P01G2-like family protein
GRMZM2G124540_P01G2-like family protein
GRMZM2G125704_P02G2-like family protein
GRMZM2G126175_P01G2-like family protein
GRMZM2G142748_P01G2-like family protein
GRMZM2G159119_P01G2-like family protein
GRMZM2G162409_P01G2-like family protein
GRMZM2G162409_P02G2-like family protein
GRMZM2G162409_P03G2-like family protein
GRMZM2G162409_P05G2-like family protein
GRMZM2G168002_P04G2-like family protein
GRMZM2G168002_P05G2-like family protein
GRMZM2G171468_P01G2-like family protein
GRMZM2G171468_P02G2-like family protein
GRMZM2G171468_P03G2-like family protein
GRMZM2G173882_P01G2-like family protein
GRMZM2G173943_P02G2-like family protein
GRMZM2G175827_P01G2-like family protein
GRMZM2G175827_P02G2-like family protein
GRMZM2G315506_P01G2-like family protein
GRMZM2G333083_P01G2-like family protein
GRMZM2G348238_P01G2-like family protein
GRMZM2G370425_P01G2-like family protein
GRMZM2G374986_P01G2-like family protein
GRMZM2G379167_P01G2-like family protein
GRMZM2G379656_P01G2-like family protein
GRMZM2G396825_P01G2-like family protein
GRMZM2G398055_P01G2-like family protein
GRMZM2G401835_P01G2-like family protein
GRMZM2G454449_P01G2-like family protein
GRMZM2G471600_P01G2-like family protein
GRMZM2G477238_P01G2-like family protein
GRMZM2G701218_P01G2-like family protein
GRMZM5G846506_P01G2-like family protein
GRMZM5G869984_P02G2-like family protein
GRMZM5G887276_P03G2-like family protein
GRMZM5G887276_P04G2-like family protein
GRMZM6G039492_P01G2-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