Plant Transcription Factor Database
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Solanum pimpinellifolium
G2-like Family
Species TF ID Description
Sopim01g091810.0.1G2-like family protein
Sopim01g108300.0.1G2-like family protein
Sopim02g076670.0.1G2-like family protein
Sopim02g080680.0.1G2-like family protein
Sopim02g080710.0.1G2-like family protein
Sopim02g080720.0.1G2-like family protein
Sopim02g080730.0.1G2-like family protein
Sopim02g080740.0.1G2-like family protein
Sopim02g080860.0.1G2-like family protein
Sopim02g090400.0.1G2-like family protein
Sopim04g008480.0.1G2-like family protein
Sopim04g015290.0.1G2-like family protein
Sopim04g050070.0.1G2-like family protein
Sopim05g009720.0.1G2-like family protein
Sopim05g049860.0.1G2-like family protein
Sopim05g051060.0.1G2-like family protein
Sopim05g055940.0.1G2-like family protein
Sopim06g005680.0.1G2-like family protein
Sopim06g008200.0.1G2-like family protein
Sopim06g051060.0.1G2-like family protein
Sopim06g066180.0.1G2-like family protein
Sopim06g066340.0.1G2-like family protein
Sopim06g076350.0.1G2-like family protein
Sopim07g009560.0.1G2-like family protein
Sopim07g017310.0.1G2-like family protein
Sopim07g045000.0.1G2-like family protein
Sopim07g049640.0.1G2-like family protein
Sopim07g053630.0.1G2-like family protein
Sopim08g005260.0.1G2-like family protein
Sopim08g076010.0.1G2-like family protein
Sopim08g076400.0.1G2-like family protein
Sopim09g005030.0.1G2-like family protein
Sopim09g005370.0.1G2-like family protein
Sopim09g010340.0.1G2-like family protein
Sopim09g072830.0.1G2-like family protein
Sopim09g091880.0.1G2-like family protein
Sopim10g008160.0.1G2-like family protein
Sopim10g076460.0.1G2-like family protein
Sopim10g078310.0.1G2-like family protein
Sopim10g078720.0.1G2-like family protein
Sopim10g080460.0.1G2-like family protein
Sopim10g080960.0.1G2-like family protein
Sopim10g083340.0.1G2-like family protein
Sopim11g011770.0.1G2-like family protein
Sopim11g022470.0.1G2-like family protein
Sopim11g067280.0.1G2-like family protein
Sopim12g006280.0.1G2-like family protein
Sopim12g006800.0.1G2-like family protein
Sopim12g011220.0.1G2-like family protein
Sopim12g011240.0.1G2-like family protein
Sopim12g011250.0.1G2-like family protein
Sopim12g011260.0.1G2-like family protein
Sopim12g017370.0.1G2-like family protein
Sopim12g098370.0.1G2-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