PlantTFDB
PlantRegMap/PlantTFDB v5.0
Plant Transcription Factor Database
Previous version: v3.0 v4.0
Capsicum baccatum
G2-like Family
Species TF ID Description
PHT27204.1G2-like family protein
PHT30161.1G2-like family protein
PHT30328.1G2-like family protein
PHT30338.1G2-like family protein
PHT30433.1G2-like family protein
PHT30801.1G2-like family protein
PHT31029.1G2-like family protein
PHT31050.1G2-like family protein
PHT32141.1G2-like family protein
PHT32805.1G2-like family protein
PHT33349.1G2-like family protein
PHT33760.1G2-like family protein
PHT35651.1G2-like family protein
PHT35985.1G2-like family protein
PHT36502.1G2-like family protein
PHT36833.1G2-like family protein
PHT37003.1G2-like family protein
PHT37065.1G2-like family protein
PHT37283.1G2-like family protein
PHT37690.1G2-like family protein
PHT37713.1G2-like family protein
PHT37714.1G2-like family protein
PHT37909.1G2-like family protein
PHT38216.1G2-like family protein
PHT39246.1G2-like family protein
PHT39892.1G2-like family protein
PHT39913.1G2-like family protein
PHT39991.1G2-like family protein
PHT41992.1G2-like family protein
PHT43527.1G2-like family protein
PHT44431.1G2-like family protein
PHT44834.1G2-like family protein
PHT44887.1G2-like family protein
PHT45612.1G2-like family protein
PHT45636.1G2-like family protein
PHT45664.1G2-like family protein
PHT46739.1G2-like family protein
PHT48374.1G2-like family protein
PHT48923.1G2-like family protein
PHT49349.1G2-like family protein
PHT50319.1G2-like family protein
PHT51931.1G2-like family protein
PHT52438.1G2-like family protein
PHT52728.1G2-like family protein
PHT52812.1G2-like family protein
PHT53972.1G2-like family protein
PHT54373.1G2-like family protein
PHT54455.1G2-like family protein
PHT56934.1G2-like family protein
PHT58607.1G2-like family protein
PHT58624.1G2-like family protein
PHT60401.1G2-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