PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Nicotiana sylvestris
G2-like Family
Species TF ID Description
XP_009758035.1G2-like family protein
XP_009758037.1G2-like family protein
XP_009758038.1G2-like family protein
XP_009758039.1G2-like family protein
XP_009759227.1G2-like family protein
XP_009759228.1G2-like family protein
XP_009761842.1G2-like family protein
XP_009762194.1G2-like family protein
XP_009765181.1G2-like family protein
XP_009765655.1G2-like family protein
XP_009765656.1G2-like family protein
XP_009766395.1G2-like family protein
XP_009766440.1G2-like family protein
XP_009766441.1G2-like family protein
XP_009767509.1G2-like family protein
XP_009769428.1G2-like family protein
XP_009769429.1G2-like family protein
XP_009769431.1G2-like family protein
XP_009770704.1G2-like family protein
XP_009770705.1G2-like family protein
XP_009770706.1G2-like family protein
XP_009771133.1G2-like family protein
XP_009771134.1G2-like family protein
XP_009772639.1G2-like family protein
XP_009772640.1G2-like family protein
XP_009772660.1G2-like family protein
XP_009773788.1G2-like family protein
XP_009774094.1G2-like family protein
XP_009774203.1G2-like family protein
XP_009774339.1G2-like family protein
XP_009775047.1G2-like family protein
XP_009776486.1G2-like family protein
XP_009776487.1G2-like family protein
XP_009776488.1G2-like family protein
XP_009776490.1G2-like family protein
XP_009777109.1G2-like family protein
XP_009779625.1G2-like family protein
XP_009779626.1G2-like family protein
XP_009779627.1G2-like family protein
XP_009781296.1G2-like family protein
XP_009781297.1G2-like family protein
XP_009781298.1G2-like family protein
XP_009781443.1G2-like family protein
XP_009781616.1G2-like family protein
XP_009782556.1G2-like family protein
XP_009782820.1G2-like family protein
XP_009783076.1G2-like family protein
XP_009783851.1G2-like family protein
XP_009784028.1G2-like family protein
XP_009784257.1G2-like family protein
XP_009784258.1G2-like family protein
XP_009784259.1G2-like family protein
XP_009785228.1G2-like family protein
XP_009785639.1G2-like family protein
XP_009786306.1G2-like family protein
XP_009786307.1G2-like family protein
XP_009787053.1G2-like family protein
XP_009788853.1G2-like family protein
XP_009788985.1G2-like family protein
XP_009788987.1G2-like family protein
XP_009790047.1G2-like family protein
XP_009790926.1G2-like family protein
XP_009790927.1G2-like family protein
XP_009790928.1G2-like family protein
XP_009791663.1G2-like family protein
XP_009791664.1G2-like family protein
XP_009794233.1G2-like family protein
XP_009794234.1G2-like family protein
XP_009794235.1G2-like family protein
XP_009794236.1G2-like family protein
XP_009796235.1G2-like family protein
XP_009798333.1G2-like family protein
XP_009799173.1G2-like family protein
XP_009800760.1G2-like family protein
XP_009800761.1G2-like family protein
XP_009801782.1G2-like family protein
XP_009801945.1G2-like family protein
XP_009802187.1G2-like family protein
XP_009802188.1G2-like family protein
XP_009802189.1G2-like family protein
XP_009802190.1G2-like family protein
XP_009802191.1G2-like family protein
XP_009802388.1G2-like family protein
XP_009802389.1G2-like family protein
XP_009803423.1G2-like family protein
XP_009804553.1G2-like family protein
XP_009804554.1G2-like family protein
XP_009804663.1G2-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