PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Nicotiana tomentosiformis
G2-like Family
Species TF ID Description
XP_009587590.1G2-like family protein
XP_009588121.1G2-like family protein
XP_009588123.1G2-like family protein
XP_009588132.1G2-like family protein
XP_009588984.1G2-like family protein
XP_009589600.1G2-like family protein
XP_009591457.1G2-like family protein
XP_009591458.1G2-like family protein
XP_009591732.1G2-like family protein
XP_009593796.1G2-like family protein
XP_009595757.1G2-like family protein
XP_009595777.1G2-like family protein
XP_009595778.1G2-like family protein
XP_009595779.1G2-like family protein
XP_009595780.1G2-like family protein
XP_009595781.1G2-like family protein
XP_009595782.1G2-like family protein
XP_009596482.1G2-like family protein
XP_009596483.1G2-like family protein
XP_009598455.1G2-like family protein
XP_009599673.1G2-like family protein
XP_009601033.1G2-like family protein
XP_009601765.1G2-like family protein
XP_009602574.1G2-like family protein
XP_009602575.1G2-like family protein
XP_009602576.1G2-like family protein
XP_009602577.1G2-like family protein
XP_009602578.1G2-like family protein
XP_009602579.1G2-like family protein
XP_009602580.1G2-like family protein
XP_009603454.1G2-like family protein
XP_009603787.1G2-like family protein
XP_009605090.1G2-like family protein
XP_009605091.1G2-like family protein
XP_009605092.1G2-like family protein
XP_009605093.1G2-like family protein
XP_009605835.1G2-like family protein
XP_009606424.1G2-like family protein
XP_009607646.1G2-like family protein
XP_009607647.1G2-like family protein
XP_009607761.1G2-like family protein
XP_009609404.1G2-like family protein
XP_009609405.1G2-like family protein
XP_009610208.1G2-like family protein
XP_009611229.1G2-like family protein
XP_009611230.1G2-like family protein
XP_009613587.1G2-like family protein
XP_009615772.1G2-like family protein
XP_009615773.1G2-like family protein
XP_009615774.1G2-like family protein
XP_009615776.1G2-like family protein
XP_009615786.1G2-like family protein
XP_009617645.1G2-like family protein
XP_009617646.1G2-like family protein
XP_009619229.1G2-like family protein
XP_009619230.1G2-like family protein
XP_009619370.1G2-like family protein
XP_009619712.1G2-like family protein
XP_009619713.1G2-like family protein
XP_009619714.1G2-like family protein
XP_009620178.1G2-like family protein
XP_009620524.1G2-like family protein
XP_009620525.1G2-like family protein
XP_009621839.1G2-like family protein
XP_009621844.1G2-like family protein
XP_009622239.1G2-like family protein
XP_009622240.1G2-like family protein
XP_009622698.1G2-like family protein
XP_009622809.1G2-like family protein
XP_009622810.1G2-like family protein
XP_009622811.1G2-like family protein
XP_009623150.1G2-like family protein
XP_009623151.1G2-like family protein
XP_009623365.1G2-like family protein
XP_009623964.1G2-like family protein
XP_009624042.1G2-like family protein
XP_009624048.1G2-like family protein
XP_009624603.1G2-like family protein
XP_009624604.1G2-like family protein
XP_009625307.1G2-like family protein
XP_009625308.1G2-like family protein
XP_009625309.1G2-like family protein
XP_009625310.1G2-like family protein
XP_009625720.1G2-like family protein
XP_009625989.1G2-like family protein
XP_009625990.1G2-like family protein
XP_009625991.1G2-like family protein
XP_009625992.1G2-like family protein
XP_009625993.1G2-like family protein
XP_009626755.1G2-like family protein
XP_009629451.1G2-like family protein
XP_009629806.1G2-like family protein
XP_009629807.1G2-like family protein
XP_009629808.1G2-like family protein
XP_009629809.1G2-like family protein
XP_009630167.1G2-like family protein
XP_009630168.1G2-like family protein
XP_009630169.1G2-like family protein
XP_009630682.1G2-like family protein
XP_009631744.1G2-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