PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Theobroma cacao
G2-like Family
Species TF ID Description
Thecc1EG000558t1G2-like family protein
Thecc1EG001726t1G2-like family protein
Thecc1EG001942t1G2-like family protein
Thecc1EG001942t2G2-like family protein
Thecc1EG002071t1G2-like family protein
Thecc1EG002514t1G2-like family protein
Thecc1EG003939t1G2-like family protein
Thecc1EG006998t1G2-like family protein
Thecc1EG006998t2G2-like family protein
Thecc1EG008193t1G2-like family protein
Thecc1EG011166t1G2-like family protein
Thecc1EG011166t2G2-like family protein
Thecc1EG011693t1G2-like family protein
Thecc1EG011693t2G2-like family protein
Thecc1EG011857t1G2-like family protein
Thecc1EG011857t2G2-like family protein
Thecc1EG011857t3G2-like family protein
Thecc1EG013117t1G2-like family protein
Thecc1EG013117t2G2-like family protein
Thecc1EG013117t3G2-like family protein
Thecc1EG013117t4G2-like family protein
Thecc1EG016589t1G2-like family protein
Thecc1EG016589t2G2-like family protein
Thecc1EG016647t1G2-like family protein
Thecc1EG016792t1G2-like family protein
Thecc1EG016792t2G2-like family protein
Thecc1EG016792t3G2-like family protein
Thecc1EG016792t4G2-like family protein
Thecc1EG016792t5G2-like family protein
Thecc1EG019003t1G2-like family protein
Thecc1EG019009t1G2-like family protein
Thecc1EG020332t1G2-like family protein
Thecc1EG020332t2G2-like family protein
Thecc1EG021300t2G2-like family protein
Thecc1EG021628t1G2-like family protein
Thecc1EG021628t2G2-like family protein
Thecc1EG021688t1G2-like family protein
Thecc1EG021688t2G2-like family protein
Thecc1EG024878t1G2-like family protein
Thecc1EG024886t1G2-like family protein
Thecc1EG024886t2G2-like family protein
Thecc1EG026171t1G2-like family protein
Thecc1EG026171t2G2-like family protein
Thecc1EG026171t3G2-like family protein
Thecc1EG026171t4G2-like family protein
Thecc1EG026448t1G2-like family protein
Thecc1EG026448t2G2-like family protein
Thecc1EG026448t3G2-like family protein
Thecc1EG027630t1G2-like family protein
Thecc1EG027630t2G2-like family protein
Thecc1EG029684t1G2-like family protein
Thecc1EG030248t1G2-like family protein
Thecc1EG030479t1G2-like family protein
Thecc1EG030479t2G2-like family protein
Thecc1EG030480t1G2-like family protein
Thecc1EG033672t1G2-like family protein
Thecc1EG033672t2G2-like family protein
Thecc1EG033940t1G2-like family protein
Thecc1EG037970t1G2-like family protein
Thecc1EG039819t1G2-like family protein
Thecc1EG041791t1G2-like family protein
Thecc1EG041791t2G2-like family protein
Thecc1EG042189t1G2-like family protein
Thecc1EG042463t1G2-like family protein
Thecc1EG045790t1G2-like family protein
Thecc1EG046366t1G2-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