PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Capsicum annuum
G2-like Family
Species TF ID Description
CA00g11180G2-like family protein
CA00g62840G2-like family protein
CA00g91730G2-like family protein
CA00g96280G2-like family protein
CA01g08210G2-like family protein
CA01g19340G2-like family protein
CA01g30290G2-like family protein
CA02g14000G2-like family protein
CA02g18420G2-like family protein
CA02g18430G2-like family protein
CA02g25780G2-like family protein
CA03g01170G2-like family protein
CA03g14840G2-like family protein
CA04g01650G2-like family protein
CA04g19570G2-like family protein
CA05g01380G2-like family protein
CA05g01390G2-like family protein
CA05g06710G2-like family protein
CA05g11120G2-like family protein
CA05g20340G2-like family protein
CA06g01530G2-like family protein
CA06g04640G2-like family protein
CA06g06970G2-like family protein
CA06g13590G2-like family protein
CA06g13740G2-like family protein
CA06g15140G2-like family protein
CA06g24770G2-like family protein
CA07g08390G2-like family protein
CA07g14400G2-like family protein
CA08g17660G2-like family protein
CA09g04250G2-like family protein
CA09g04380G2-like family protein
CA09g12290G2-like family protein
CA09g15380G2-like family protein
CA10g02900G2-like family protein
CA10g04740G2-like family protein
CA10g12810G2-like family protein
CA10g16780G2-like family protein
CA10g17970G2-like family protein
CA10g19330G2-like family protein
CA10g20900G2-like family protein
CA10g21870G2-like family protein
CA11g04260G2-like family protein
CA12g01450G2-like family protein
CA12g10410G2-like family protein
CA12g20310G2-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