PlantTFDB - Plant Transcription Factor Databases @ CBI, PKU
PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Citrus clementina
G2-like Family
Species TF ID Description
Ciclev10001292mG2-like family protein
Ciclev10001300mG2-like family protein
Ciclev10001679mG2-like family protein
Ciclev10002089mG2-like family protein
Ciclev10002097mG2-like family protein
Ciclev10004984mG2-like family protein
Ciclev10004989mG2-like family protein
Ciclev10005010mG2-like family protein
Ciclev10005011mG2-like family protein
Ciclev10005192mG2-like family protein
Ciclev10005450mG2-like family protein
Ciclev10005466mG2-like family protein
Ciclev10005596mG2-like family protein
Ciclev10008096mG2-like family protein
Ciclev10011992mG2-like family protein
Ciclev10012014mG2-like family protein
Ciclev10012203mG2-like family protein
Ciclev10012340mG2-like family protein
Ciclev10012514mG2-like family protein
Ciclev10012556mG2-like family protein
Ciclev10012745mG2-like family protein
Ciclev10013453mG2-like family protein
Ciclev10013589mG2-like family protein
Ciclev10015266mG2-like family protein
Ciclev10015446mG2-like family protein
Ciclev10015819mG2-like family protein
Ciclev10015893mG2-like family protein
Ciclev10015909mG2-like family protein
Ciclev10015911mG2-like family protein
Ciclev10016073mG2-like family protein
Ciclev10016143mG2-like family protein
Ciclev10016495mG2-like family protein
Ciclev10016591mG2-like family protein
Ciclev10017867mG2-like family protein
Ciclev10018145mG2-like family protein
Ciclev10019954mG2-like family protein
Ciclev10019956mG2-like family protein
Ciclev10019958mG2-like family protein
Ciclev10019960mG2-like family protein
Ciclev10019964mG2-like family protein
Ciclev10019967mG2-like family protein
Ciclev10019969mG2-like family protein
Ciclev10020000mG2-like family protein
Ciclev10020171mG2-like family protein
Ciclev10020451mG2-like family protein
Ciclev10020989mG2-like family protein
Ciclev10026557mG2-like family protein
Ciclev10028556mG2-like family protein
Ciclev10028658mG2-like family protein
Ciclev10028661mG2-like family protein
Ciclev10028662mG2-like family protein
Ciclev10028830mG2-like family protein
Ciclev10029989mG2-like family protein
Ciclev10030185mG2-like family protein
Ciclev10031348mG2-like family protein
Ciclev10031793mG2-like family protein
Ciclev10031880mG2-like family protein
Ciclev10031937mG2-like family protein
Ciclev10032189mG2-like family protein
Ciclev10032941mG2-like family protein
Ciclev10033388mG2-like family protein
Ciclev10033825mG2-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