PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Lotus japonicus
G2-like Family
Species TF ID Description
Lj0g3v0078699.1G2-like family protein
Lj0g3v0089499.1G2-like family protein
Lj0g3v0089499.2G2-like family protein
Lj0g3v0109229.1G2-like family protein
Lj0g3v0127839.1G2-like family protein
Lj0g3v0129219.1G2-like family protein
Lj0g3v0159319.1G2-like family protein
Lj0g3v0195339.1G2-like family protein
Lj0g3v0195339.2G2-like family protein
Lj0g3v0205019.1G2-like family protein
Lj0g3v0205019.2G2-like family protein
Lj0g3v0223589.1G2-like family protein
Lj0g3v0223589.2G2-like family protein
Lj0g3v0223589.3G2-like family protein
Lj0g3v0251039.1G2-like family protein
Lj0g3v0337759.1G2-like family protein
Lj1g3v2372410.1G2-like family protein
Lj1g3v4048450.1G2-like family protein
Lj1g3v4048450.2G2-like family protein
Lj1g3v4093220.1G2-like family protein
Lj1g3v4093230.1G2-like family protein
Lj1g3v4317480.1G2-like family protein
Lj1g3v4317480.2G2-like family protein
Lj1g3v4317520.1G2-like family protein
Lj1g3v4317520.2G2-like family protein
Lj1g3v4515910.1G2-like family protein
Lj1g3v4998480.1G2-like family protein
Lj1g3v4998480.2G2-like family protein
Lj2g3v0636680.1G2-like family protein
Lj2g3v0636680.2G2-like family protein
Lj2g3v0780580.1G2-like family protein
Lj2g3v1168830.1G2-like family protein
Lj2g3v1277750.1G2-like family protein
Lj2g3v1509440.1G2-like family protein
Lj2g3v1509440.2G2-like family protein
Lj2g3v1536360.1G2-like family protein
Lj2g3v1831990.1G2-like family protein
Lj2g3v2535460.1G2-like family protein
Lj3g3v0948270.1G2-like family protein
Lj3g3v0948270.2G2-like family protein
Lj3g3v1355760.1G2-like family protein
Lj3g3v2812210.1G2-like family protein
Lj3g3v2812210.2G2-like family protein
Lj3g3v2812210.3G2-like family protein
Lj3g3v3214340.1G2-like family protein
Lj3g3v3235380.1G2-like family protein
Lj4g3v0281170.2G2-like family protein
Lj4g3v0571920.1G2-like family protein
Lj4g3v0571920.2G2-like family protein
Lj4g3v1154490.1G2-like family protein
Lj4g3v1802450.1G2-like family protein
Lj4g3v1802450.2G2-like family protein
Lj4g3v2286050.1G2-like family protein
Lj4g3v2286050.2G2-like family protein
Lj4g3v2604770.1G2-like family protein
Lj4g3v2604770.2G2-like family protein
Lj5g3v0069820.1G2-like family protein
Lj5g3v0554360.1G2-like family protein
Lj5g3v0659720.1G2-like family protein
Lj5g3v0900910.1G2-like family protein
Lj5g3v1697860.1G2-like family protein
Lj5g3v1774720.1G2-like family protein
Lj5g3v2241390.1G2-like family protein
Lj6g3v1694970.1G2-like family protein
Lj6g3v1694980.1G2-like family protein
Lj6g3v1694980.2G2-like family protein
Lj6g3v1694980.3G2-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