PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Trifolium pratense
G2-like Family
Species TF ID Description
Tp57577_TGAC_v2_mRNA10844G2-like family protein
Tp57577_TGAC_v2_mRNA10847G2-like family protein
Tp57577_TGAC_v2_mRNA10848G2-like family protein
Tp57577_TGAC_v2_mRNA11725G2-like family protein
Tp57577_TGAC_v2_mRNA11726G2-like family protein
Tp57577_TGAC_v2_mRNA13672G2-like family protein
Tp57577_TGAC_v2_mRNA13674G2-like family protein
Tp57577_TGAC_v2_mRNA13675G2-like family protein
Tp57577_TGAC_v2_mRNA13904G2-like family protein
Tp57577_TGAC_v2_mRNA15239G2-like family protein
Tp57577_TGAC_v2_mRNA15351G2-like family protein
Tp57577_TGAC_v2_mRNA16266G2-like family protein
Tp57577_TGAC_v2_mRNA16832G2-like family protein
Tp57577_TGAC_v2_mRNA19351G2-like family protein
Tp57577_TGAC_v2_mRNA20046G2-like family protein
Tp57577_TGAC_v2_mRNA20103G2-like family protein
Tp57577_TGAC_v2_mRNA21753G2-like family protein
Tp57577_TGAC_v2_mRNA22060G2-like family protein
Tp57577_TGAC_v2_mRNA23142G2-like family protein
Tp57577_TGAC_v2_mRNA23457G2-like family protein
Tp57577_TGAC_v2_mRNA23678G2-like family protein
Tp57577_TGAC_v2_mRNA24396G2-like family protein
Tp57577_TGAC_v2_mRNA24482G2-like family protein
Tp57577_TGAC_v2_mRNA24979G2-like family protein
Tp57577_TGAC_v2_mRNA24981G2-like family protein
Tp57577_TGAC_v2_mRNA24982G2-like family protein
Tp57577_TGAC_v2_mRNA25245G2-like family protein
Tp57577_TGAC_v2_mRNA2552G2-like family protein
Tp57577_TGAC_v2_mRNA27552G2-like family protein
Tp57577_TGAC_v2_mRNA27570G2-like family protein
Tp57577_TGAC_v2_mRNA27571G2-like family protein
Tp57577_TGAC_v2_mRNA27671G2-like family protein
Tp57577_TGAC_v2_mRNA32952G2-like family protein
Tp57577_TGAC_v2_mRNA3451G2-like family protein
Tp57577_TGAC_v2_mRNA34790G2-like family protein
Tp57577_TGAC_v2_mRNA35188G2-like family protein
Tp57577_TGAC_v2_mRNA35992G2-like family protein
Tp57577_TGAC_v2_mRNA36577G2-like family protein
Tp57577_TGAC_v2_mRNA39011G2-like family protein
Tp57577_TGAC_v2_mRNA39644G2-like family protein
Tp57577_TGAC_v2_mRNA40497G2-like family protein
Tp57577_TGAC_v2_mRNA4709G2-like family protein
Tp57577_TGAC_v2_mRNA6286G2-like family protein
Tp57577_TGAC_v2_mRNA657G2-like family protein
Tp57577_TGAC_v2_mRNA6611G2-like family protein
Tp57577_TGAC_v2_mRNA7240G2-like family protein
Tp57577_TGAC_v2_mRNA7275G2-like family protein
Tp57577_TGAC_v2_mRNA7276G2-like family protein
Tp57577_TGAC_v2_mRNA8709G2-like family protein
Tp57577_TGAC_v2_mRNA9659G2-like family protein
Tp57577_TGAC_v2_mRNA9708G2-like family protein
Tp57577_TGAC_v2_mRNA9709G2-like family protein
Tp57577_TGAC_v2_mRNA996G2-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