PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Pyrus bretschneideri
G2-like Family
Species TF ID Description
Pbr000133.1G2-like family protein
Pbr000501.1G2-like family protein
Pbr000899.1G2-like family protein
Pbr000900.1G2-like family protein
Pbr002556.1G2-like family protein
Pbr003393.1G2-like family protein
Pbr003852.1G2-like family protein
Pbr006215.1G2-like family protein
Pbr007519.1G2-like family protein
Pbr007679.1G2-like family protein
Pbr007879.1G2-like family protein
Pbr009554.1G2-like family protein
Pbr010346.1G2-like family protein
Pbr010932.1G2-like family protein
Pbr012187.1G2-like family protein
Pbr013259.1G2-like family protein
Pbr014066.1G2-like family protein
Pbr016125.1G2-like family protein
Pbr016308.1G2-like family protein
Pbr016338.1G2-like family protein
Pbr016593.1G2-like family protein
Pbr016659.1G2-like family protein
Pbr016928.2G2-like family protein
Pbr016995.1G2-like family protein
Pbr017564.1G2-like family protein
Pbr017565.1G2-like family protein
Pbr018943.1G2-like family protein
Pbr019236.1G2-like family protein
Pbr019429.1G2-like family protein
Pbr020018.1G2-like family protein
Pbr020045.1G2-like family protein
Pbr021637.1G2-like family protein
Pbr021926.1G2-like family protein
Pbr021929.1G2-like family protein
Pbr022508.1G2-like family protein
Pbr023656.1G2-like family protein
Pbr025099.1G2-like family protein
Pbr027474.1G2-like family protein
Pbr028248.1G2-like family protein
Pbr028332.1G2-like family protein
Pbr029616.1G2-like family protein
Pbr030940.1G2-like family protein
Pbr031198.1G2-like family protein
Pbr031366.2G2-like family protein
Pbr031798.1G2-like family protein
Pbr031912.1G2-like family protein
Pbr032328.1G2-like family protein
Pbr032895.1G2-like family protein
Pbr035841.1G2-like family protein
Pbr035842.1G2-like family protein
Pbr036624.1G2-like family protein
Pbr037010.1G2-like family protein
Pbr037169.1G2-like family protein
Pbr038168.1G2-like family protein
Pbr038515.1G2-like family protein
Pbr038812.1G2-like family protein
Pbr039049.1G2-like family protein
Pbr039078.1G2-like family protein
Pbr040212.1G2-like family protein
Pbr040213.1G2-like family protein
Pbr040816.1G2-like family protein
Pbr040823.1G2-like family protein
Pbr041623.1G2-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