PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Gossypium hirsutum
G2-like Family
Species TF ID Description
Gh_A01G0139G2-like family protein
Gh_A01G1632G2-like family protein
Gh_A01G1680G2-like family protein
Gh_A01G1983G2-like family protein
Gh_A02G0227G2-like family protein
Gh_A02G0666G2-like family protein
Gh_A03G0029G2-like family protein
Gh_A03G0881G2-like family protein
Gh_A03G2087G2-like family protein
Gh_A04G0808G2-like family protein
Gh_A04G0879G2-like family protein
Gh_A04G1278G2-like family protein
Gh_A04G1454G2-like family protein
Gh_A05G0138G2-like family protein
Gh_A05G1295G2-like family protein
Gh_A05G2666G2-like family protein
Gh_A05G3789G2-like family protein
Gh_A06G0124G2-like family protein
Gh_A06G0505G2-like family protein
Gh_A06G1158G2-like family protein
Gh_A06G1310G2-like family protein
Gh_A06G1719G2-like family protein
Gh_A06G1720G2-like family protein
Gh_A07G0023G2-like family protein
Gh_A07G0539G2-like family protein
Gh_A07G0910G2-like family protein
Gh_A07G1609G2-like family protein
Gh_A07G1766G2-like family protein
Gh_A08G0150G2-like family protein
Gh_A08G1369G2-like family protein
Gh_A08G1391G2-like family protein
Gh_A08G1895G2-like family protein
Gh_A08G2291G2-like family protein
Gh_A09G1191G2-like family protein
Gh_A09G1542G2-like family protein
Gh_A09G1572G2-like family protein
Gh_A09G1830G2-like family protein
Gh_A10G0008G2-like family protein
Gh_A10G0338G2-like family protein
Gh_A10G2150G2-like family protein
Gh_A11G1222G2-like family protein
Gh_A11G1359G2-like family protein
Gh_A11G2224G2-like family protein
Gh_A11G2334G2-like family protein
Gh_A11G2737G2-like family protein
Gh_A11G3022G2-like family protein
Gh_A12G0231G2-like family protein
Gh_A12G0642G2-like family protein
Gh_A12G1283G2-like family protein
Gh_A12G1550G2-like family protein
Gh_A12G1858G2-like family protein
Gh_A12G2454G2-like family protein
Gh_A12G2665G2-like family protein
Gh_A13G0330G2-like family protein
Gh_A13G0668G2-like family protein
Gh_A13G1060G2-like family protein
Gh_A13G2133G2-like family protein
Gh_A13G2284G2-like family protein
Gh_D01G0183G2-like family protein
Gh_D01G0621G2-like family protein
Gh_D01G1351G2-like family protein
Gh_D01G1830G2-like family protein
Gh_D01G1929G2-like family protein
Gh_D01G2242G2-like family protein
Gh_D02G0291G2-like family protein
Gh_D02G1265G2-like family protein
Gh_D03G0185G2-like family protein
Gh_D03G0519G2-like family protein
Gh_D03G1171G2-like family protein
Gh_D04G1301G2-like family protein
Gh_D04G1379G2-like family protein
Gh_D04G1594G2-like family protein
Gh_D05G0201G2-like family protein
Gh_D05G1022G2-like family protein
Gh_D05G1106G2-like family protein
Gh_D05G1466G2-like family protein
Gh_D05G1898G2-like family protein
Gh_D05G2967G2-like family protein
Gh_D06G1439G2-like family protein
Gh_D06G1638G2-like family protein
Gh_D06G1881G2-like family protein
Gh_D06G2258G2-like family protein
Gh_D06G2259G2-like family protein
Gh_D06G2298G2-like family protein
Gh_D07G0029G2-like family protein
Gh_D07G0607G2-like family protein
Gh_D07G0984G2-like family protein
Gh_D07G2432G2-like family protein
Gh_D07G2433G2-like family protein
Gh_D07G2483G2-like family protein
Gh_D08G0202G2-like family protein
Gh_D08G0898G2-like family protein
Gh_D08G1663G2-like family protein
Gh_D08G1686G2-like family protein
Gh_D08G2150G2-like family protein
Gh_D08G2260G2-like family protein
Gh_D08G2449G2-like family protein
Gh_D09G1197G2-like family protein
Gh_D09G1561G2-like family protein
Gh_D09G1643G2-like family protein
Gh_D09G1951G2-like family protein
Gh_D10G0010G2-like family protein
Gh_D10G0344G2-like family protein
Gh_D10G1406G2-like family protein
Gh_D10G2397G2-like family protein
Gh_D11G0490G2-like family protein
Gh_D11G1369G2-like family protein
Gh_D11G1506G2-like family protein
Gh_D11G2533G2-like family protein
Gh_D11G2648G2-like family protein
Gh_D11G3348G2-like family protein
Gh_D12G0232G2-like family protein
Gh_D12G0857G2-like family protein
Gh_D12G1405G2-like family protein
Gh_D12G2029G2-like family protein
Gh_D12G2056G2-like family protein
Gh_D12G2581G2-like family protein
Gh_D13G0369G2-like family protein
Gh_D13G0720G2-like family protein
Gh_D13G0783G2-like family protein
Gh_D13G1114G2-like family protein
Gh_D13G1326G2-like family protein
Gh_D13G1482G2-like family protein
Gh_Sca004800G01G2-like family protein
Gh_Sca004863G01G2-like family protein
Gh_Sca004925G02G2-like family protein
Gh_Sca005969G01G2-like family protein
Gh_Sca041180G01G2-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