PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Raphanus raphanistrum
G2-like Family
Species TF ID Description
RrC10825_p1G2-like family protein
RrC1114_p2G2-like family protein
RrC11203_p1G2-like family protein
RrC11530_p1G2-like family protein
RrC11553_p1G2-like family protein
RrC12045_p1G2-like family protein
RrC12281_p1G2-like family protein
RrC12528_p1G2-like family protein
RrC12792_p1G2-like family protein
RrC1282_p10G2-like family protein
RrC13376_p1G2-like family protein
RrC13640_p1G2-like family protein
RrC1405_p1G2-like family protein
RrC151_p7G2-like family protein
RrC15320_p1G2-like family protein
RrC1558_p1G2-like family protein
RrC1613_p1G2-like family protein
RrC1622_p3G2-like family protein
RrC1678_p2G2-like family protein
RrC1749_p4G2-like family protein
RrC1782_p1G2-like family protein
RrC17_p14G2-like family protein
RrC1865_p4G2-like family protein
RrC18734_p1G2-like family protein
RrC19185_p1G2-like family protein
RrC1954_p4G2-like family protein
RrC19564_p1G2-like family protein
RrC19566_p1G2-like family protein
RrC19739_p1G2-like family protein
RrC19877_p1G2-like family protein
RrC20109_p2G2-like family protein
RrC2041_p2G2-like family protein
RrC21122_p1G2-like family protein
RrC21855_p1G2-like family protein
RrC2221_p4G2-like family protein
RrC222_p7G2-like family protein
RrC24434_p1G2-like family protein
RrC2537_p4G2-like family protein
RrC2614_p5G2-like family protein
RrC2852_p1G2-like family protein
RrC2941_p3G2-like family protein
RrC2983_p1G2-like family protein
RrC30637_p1G2-like family protein
RrC3208_p3G2-like family protein
RrC3429_p1G2-like family protein
RrC3636_p1G2-like family protein
RrC3673_p2G2-like family protein
RrC3881_p2G2-like family protein
RrC424_p4G2-like family protein
RrC42619_p1G2-like family protein
RrC44391_p1G2-like family protein
RrC4494_p1G2-like family protein
RrC4936_p1G2-like family protein
RrC5305_p1G2-like family protein
RrC5389_p2G2-like family protein
RrC5639_p3G2-like family protein
RrC5786_p1G2-like family protein
RrC6131_p1G2-like family protein
RrC6142_p3G2-like family protein
RrC6704_p2G2-like family protein
RrC672_p1G2-like family protein
RrC6860_p2G2-like family protein
RrC7017_p1G2-like family protein
RrC7081_p3G2-like family protein
RrC728_p5G2-like family protein
RrC7600_p1G2-like family protein
RrC760_p6G2-like family protein
RrC7999_p1G2-like family protein
RrC8274_p2G2-like family protein
RrC8816_p3G2-like family protein
RrC887_p5G2-like family protein
RrC9006_p1G2-like family protein
RrC954_p4G2-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