PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Azadirachta indica
G2-like Family
Species TF ID Description
Neem_10430_f_2G2-like family protein
Neem_10430_f_3G2-like family protein
Neem_11669_f_1G2-like family protein
Neem_12847_f_1G2-like family protein
Neem_1394_f_3G2-like family protein
Neem_14376_f_1G2-like family protein
Neem_15089_f_1G2-like family protein
Neem_15250_f_2G2-like family protein
Neem_1535_f_7G2-like family protein
Neem_1793_f_14G2-like family protein
Neem_18349_f_1G2-like family protein
Neem_20194_f_1G2-like family protein
Neem_2121_f_2G2-like family protein
Neem_21592_f_1G2-like family protein
Neem_22147_f_1G2-like family protein
Neem_22347_f_1G2-like family protein
Neem_23096_f_2G2-like family protein
Neem_23775_f_2G2-like family protein
Neem_23824_f_1G2-like family protein
Neem_23919_f_1G2-like family protein
Neem_24330_f_1G2-like family protein
Neem_2491_f_1G2-like family protein
Neem_26911_f_1G2-like family protein
Neem_28615_f_1G2-like family protein
Neem_29344_f_1G2-like family protein
Neem_30457_f_1G2-like family protein
Neem_30614_f_1G2-like family protein
Neem_30801_f_1G2-like family protein
Neem_3139_f_11G2-like family protein
Neem_32264_f_1G2-like family protein
Neem_3326_f_2G2-like family protein
Neem_33703_f_1G2-like family protein
Neem_34206_f_1G2-like family protein
Neem_35884_f_1G2-like family protein
Neem_3637_f_1G2-like family protein
Neem_39198_f_1G2-like family protein
Neem_42635_f_1G2-like family protein
Neem_4961_f_1G2-like family protein
Neem_5750_f_1G2-like family protein
Neem_6473_f_4G2-like family protein
Neem_672_f_3G2-like family protein
Neem_6787_f_1G2-like family protein
Neem_7448_f_1G2-like family protein
Neem_7456_f_6G2-like family protein
Neem_7467_f_1G2-like family protein
Neem_7513_f_4G2-like family protein
Neem_7557_f_9G2-like family protein
Neem_7694_f_3G2-like family protein
Neem_8110_f_1G2-like family protein
Neem_8269_f_2G2-like family protein
Neem_8447_f_3G2-like family protein
Neem_9176_f_2G2-like family protein
Neem_969_f_2G2-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