PlantRegMap/PlantTFDB v5.0
Plant Transcription Factor Database
Previous version: v3.0 v4.0
Gossypium arboreum
G2-like Family
Species TF ID Description
Cotton_A_00062_BGI-A2_v1.0G2-like family protein
Cotton_A_00064_BGI-A2_v1.0G2-like family protein
Cotton_A_00303_BGI-A2_v1.0G2-like family protein
Cotton_A_01461_BGI-A2_v1.0G2-like family protein
Cotton_A_01678_BGI-A2_v1.0G2-like family protein
Cotton_A_02042_BGI-A2_v1.0G2-like family protein
Cotton_A_02192_BGI-A2_v1.0G2-like family protein
Cotton_A_02500_BGI-A2_v1.0G2-like family protein
Cotton_A_02742_BGI-A2_v1.0G2-like family protein
Cotton_A_02995_BGI-A2_v1.0G2-like family protein
Cotton_A_03448_BGI-A2_v1.0G2-like family protein
Cotton_A_04900_BGI-A2_v1.0G2-like family protein
Cotton_A_04901_BGI-A2_v1.0G2-like family protein
Cotton_A_05847_BGI-A2_v1.0G2-like family protein
Cotton_A_06358_BGI-A2_v1.0G2-like family protein
Cotton_A_06910_BGI-A2_v1.0G2-like family protein
Cotton_A_06957_BGI-A2_v1.0G2-like family protein
Cotton_A_07375_BGI-A2_v1.0G2-like family protein
Cotton_A_07771_BGI-A2_v1.0G2-like family protein
Cotton_A_07929_BGI-A2_v1.0G2-like family protein
Cotton_A_07950_BGI-A2_v1.0G2-like family protein
Cotton_A_09284_BGI-A2_v1.0G2-like family protein
Cotton_A_09733_BGI-A2_v1.0G2-like family protein
Cotton_A_10271_BGI-A2_v1.0G2-like family protein
Cotton_A_10788_BGI-A2_v1.0G2-like family protein
Cotton_A_11128_BGI-A2_v1.0G2-like family protein
Cotton_A_11268_BGI-A2_v1.0G2-like family protein
Cotton_A_11761_BGI-A2_v1.0G2-like family protein
Cotton_A_13061_BGI-A2_v1.0G2-like family protein
Cotton_A_14304_BGI-A2_v1.0G2-like family protein
Cotton_A_14903_BGI-A2_v1.0G2-like family protein
Cotton_A_15020_BGI-A2_v1.0G2-like family protein
Cotton_A_15103_BGI-A2_v1.0G2-like family protein
Cotton_A_15322_BGI-A2_v1.0G2-like family protein
Cotton_A_16857_BGI-A2_v1.0G2-like family protein
Cotton_A_17531_BGI-A2_v1.0G2-like family protein
Cotton_A_19416_BGI-A2_v1.0G2-like family protein
Cotton_A_20433_BGI-A2_v1.0G2-like family protein
Cotton_A_22883_BGI-A2_v1.0G2-like family protein
Cotton_A_23133_BGI-A2_v1.0G2-like family protein
Cotton_A_24280_BGI-A2_v1.0G2-like family protein
Cotton_A_25525_BGI-A2_v1.0G2-like family protein
Cotton_A_25826_BGI-A2_v1.0G2-like family protein
Cotton_A_26053_BGI-A2_v1.0G2-like family protein
Cotton_A_26940_BGI-A2_v1.0G2-like family protein
Cotton_A_27662_BGI-A2_v1.0G2-like family protein
Cotton_A_29337_BGI-A2_v1.0G2-like family protein
Cotton_A_29834_BGI-A2_v1.0G2-like family protein
Cotton_A_30638_BGI-A2_v1.0G2-like family protein
Cotton_A_30808_BGI-A2_v1.0G2-like family protein
Cotton_A_31019_BGI-A2_v1.0G2-like family protein
Cotton_A_31232_BGI-A2_v1.0G2-like family protein
Cotton_A_32098_BGI-A2_v1.0G2-like family protein
Cotton_A_33118_BGI-A2_v1.0G2-like family protein
Cotton_A_34375_BGI-A2_v1.0G2-like family protein
Cotton_A_34547_BGI-A2_v1.0G2-like family protein
Cotton_A_35453_BGI-A2_v1.0G2-like family protein
Cotton_A_36642_BGI-A2_v1.0G2-like family protein
Cotton_A_37983_BGI-A2_v1.0G2-like family protein
Cotton_A_38864_BGI-A2_v1.0G2-like family protein
Cotton_A_40387_BGI-A2_v1.0G2-like family protein
Cotton_A_40778_BGI-A2_v1.0G2-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