PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Salvia miltiorrhiza
G2-like Family
Species TF ID Description
SMil_00000662-RA_SalvG2-like family protein
SMil_00001178-RA_SalvG2-like family protein
SMil_00002993-RA_SalvG2-like family protein
SMil_00004118-RA_SalvG2-like family protein
SMil_00006334-RA_SalvG2-like family protein
SMil_00006337-RA_SalvG2-like family protein
SMil_00006772-RA_SalvG2-like family protein
SMil_00006974-RA_SalvG2-like family protein
SMil_00007531-RA_SalvG2-like family protein
SMil_00007574-RA_SalvG2-like family protein
SMil_00008421-RA_SalvG2-like family protein
SMil_00008452-RA_SalvG2-like family protein
SMil_00008646-RA_SalvG2-like family protein
SMil_00008800-RA_SalvG2-like family protein
SMil_00008908-RA_SalvG2-like family protein
SMil_00008909-RA_SalvG2-like family protein
SMil_00009293-RA_SalvG2-like family protein
SMil_00010717-RA_SalvG2-like family protein
SMil_00011126-RA_SalvG2-like family protein
SMil_00011521-RA_SalvG2-like family protein
SMil_00011590-RA_SalvG2-like family protein
SMil_00011788-RA_SalvG2-like family protein
SMil_00012128-RA_SalvG2-like family protein
SMil_00012145-RA_SalvG2-like family protein
SMil_00012967-RA_SalvG2-like family protein
SMil_00013510-RA_SalvG2-like family protein
SMil_00013897-RA_SalvG2-like family protein
SMil_00016032-RA_SalvG2-like family protein
SMil_00016985-RA_SalvG2-like family protein
SMil_00017002-RA_SalvG2-like family protein
SMil_00017333-RA_SalvG2-like family protein
SMil_00017579-RA_SalvG2-like family protein
SMil_00017785-RA_SalvG2-like family protein
SMil_00018618-RA_SalvG2-like family protein
SMil_00018838-RA_SalvG2-like family protein
SMil_00019281-RA_SalvG2-like family protein
SMil_00019476-RA_SalvG2-like family protein
SMil_00020612-RA_SalvG2-like family protein
SMil_00020648-RA_SalvG2-like family protein
SMil_00021276-RA_SalvG2-like family protein
SMil_00022124-RA_SalvG2-like family protein
SMil_00022686-RA_SalvG2-like family protein
SMil_00022714-RA_SalvG2-like family protein
SMil_00022963-RA_SalvG2-like family protein
SMil_00024328-RA_SalvG2-like family protein
SMil_00024342-RA_SalvG2-like family protein
SMil_00024450-RA_SalvG2-like family protein
SMil_00024858-RA_SalvG2-like family protein
SMil_00024865-RA_SalvG2-like family protein
SMil_00027566-RA_SalvG2-like family protein
SMil_00027686-RA_SalvG2-like family protein
SMil_00029061-RA_SalvG2-like family protein
SMil_00030103-RA_SalvG2-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