PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Dichanthelium oligosanthes
G2-like Family
Species TF ID Description
Do000088.1G2-like family protein
Do000269.1G2-like family protein
Do000473.1G2-like family protein
Do000713.1G2-like family protein
Do002217.1G2-like family protein
Do003251.1G2-like family protein
Do003598.1G2-like family protein
Do003706.1G2-like family protein
Do004163.1G2-like family protein
Do004796.1G2-like family protein
Do004799.1G2-like family protein
Do005544.1G2-like family protein
Do005949.1G2-like family protein
Do006395.1G2-like family protein
Do006411.1G2-like family protein
Do006813.1G2-like family protein
Do006984.1G2-like family protein
Do009078.1G2-like family protein
Do009435.1G2-like family protein
Do009449.1G2-like family protein
Do009503.1G2-like family protein
Do010218.1G2-like family protein
Do011605.1G2-like family protein
Do012260.1G2-like family protein
Do012623.1G2-like family protein
Do014087.1G2-like family protein
Do014466.1G2-like family protein
Do016300.1G2-like family protein
Do017688.1G2-like family protein
Do017994.1G2-like family protein
Do018122.1G2-like family protein
Do018334.1G2-like family protein
Do018887.1G2-like family protein
Do019580.1G2-like family protein
Do020560.1G2-like family protein
Do022479.1G2-like family protein
Do023014.1G2-like family protein
Do023732.1G2-like family protein
Do024888.1G2-like family protein
Do025167.1G2-like family protein
Do025758.1G2-like family protein
Do025973.1G2-like family protein
Do027366.1G2-like family protein
Do027424.1G2-like family protein
Do027617.1G2-like family protein
Do027844.1G2-like family protein
Do028037.1G2-like family protein
Do028089.1G2-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