PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Brassica oleracea
GRF Family
Species TF ID Description
XP_013584216.1GRF family protein
XP_013588520.1GRF family protein
XP_013588525.1GRF family protein
XP_013590378.1GRF family protein
XP_013591827.1GRF family protein
XP_013591833.1GRF family protein
XP_013594025.1GRF family protein
XP_013596094.1GRF family protein
XP_013596095.1GRF family protein
XP_013596096.1GRF family protein
XP_013597807.1GRF family protein
XP_013600896.1GRF family protein
XP_013603680.1GRF family protein
XP_013619119.1GRF family protein
XP_013621763.1GRF family protein
XP_013622252.1GRF family protein
XP_013626025.1GRF family protein
XP_013626026.1GRF family protein
XP_013626398.1GRF family protein
XP_013626399.1GRF family protein
XP_013632347.1GRF family protein
XP_013634855.1GRF family protein
XP_013636224.1GRF family protein
XP_013636924.1GRF family protein
GRF Family Introduction

Previously, we identified a novel rice gene, GROWTH-REGULATING FACTOR1 (OsGRF1), which encodes a putative transcription factor that appears to play a regulatory role in stem elongation. We now describe the GRF gene family of Arabidopsis thaliana (AtGRF), which comprises nine members. The deduced AtGRF proteins contain the same characteristic regions--the QLQ (Gln, Leu, Gln) and WRC (Trp, Arg, Cys) domains--as do OsGRF1 and related proteins in rice, as well as features indicating a function in transcriptional regulation. Most of the AtGRF genes are strongly expressed in actively growing and developing tissues, such as shoot tips, flower buds, and roots, but weakly in mature stem and leaf tissues. Overexpression of AtGRF1 and AtGRF2 resulted in larger leaves and cotyledons, as well as in delayed bolting of the inflorescence stem when compared to wild-type plants. In contrast, triple insertional null mutants of AtGRF1-AtGRF3 had smaller leaves and cotyledons, whereas single mutants displayed no changes in phenotype and double mutants displayed only minor ones. The alteration of leaf growth in overexpressors and triple mutants was based on an increase or decrease in cell size, respectively. These results indicate that AtGRF proteins play a role in the regulation of cell expansion in leaf and cotyledon tissues.

Kim JH, Choi D, Kende H.
The AtGRF family of putative transcription factors is involved in leaf and cotyledon growth in Arabidopsis.
Plant J. 2003 Oct;36(1):94-104.
PMID: 12974814