PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Camelina sativa
ZF-HD Family
Species TF ID Description
Csa00674s020.1ZF-HD family protein
Csa01g041480.1ZF-HD family protein
Csa02g067410.1ZF-HD family protein
Csa02g074380.1ZF-HD family protein
Csa03g018170.1ZF-HD family protein
Csa03g018470.1ZF-HD family protein
Csa03g022710.1ZF-HD family protein
Csa04g008070.1ZF-HD family protein
Csa04g018190.1ZF-HD family protein
Csa04g018200.1ZF-HD family protein
Csa04g036630.1ZF-HD family protein
Csa05g086340.1ZF-HD family protein
Csa06g002650.1ZF-HD family protein
Csa06g011260.1ZF-HD family protein
Csa06g025000.1ZF-HD family protein
Csa07g036340.1ZF-HD family protein
Csa07g046080.1ZF-HD family protein
Csa07g046680.1ZF-HD family protein
Csa08g007290.1ZF-HD family protein
Csa08g011330.1ZF-HD family protein
Csa09g002470.1ZF-HD family protein
Csa09g004840.1ZF-HD family protein
Csa09g021300.1ZF-HD family protein
Csa09g021330.1ZF-HD family protein
Csa09g079830.1ZF-HD family protein
Csa10g018370.1ZF-HD family protein
Csa10g046780.1ZF-HD family protein
Csa11959s010.1ZF-HD family protein
Csa11g020030.1ZF-HD family protein
Csa11g055790.1ZF-HD family protein
Csa11g072230.1ZF-HD family protein
Csa11g094320.1ZF-HD family protein
Csa11g102640.1ZF-HD family protein
Csa12g029610.1ZF-HD family protein
Csa12g081670.1ZF-HD family protein
Csa13g018040.1ZF-HD family protein
Csa13g021670.1ZF-HD family protein
Csa14g017460.1ZF-HD family protein
Csa14g017780.1ZF-HD family protein
Csa14g024190.1ZF-HD family protein
Csa15080s010.1ZF-HD family protein
Csa15g077880.1ZF-HD family protein
Csa16g031040.1ZF-HD family protein
Csa16g038560.1ZF-HD family protein
Csa16g039140.1ZF-HD family protein
Csa17g019860.1ZF-HD family protein
Csa17g020190.1ZF-HD family protein
Csa17g024650.1ZF-HD family protein
Csa18g011150.1ZF-HD family protein
Csa18g033820.1ZF-HD family protein
Csa18g039210.1ZF-HD family protein
Csa19g057930.1ZF-HD family protein
Csa19g057940.1ZF-HD family protein
Csa20g021700.1ZF-HD family protein
Csa20g027270.1ZF-HD family protein
Csa20g066560.1ZF-HD family protein
ZF-HD Family Introduction

This group of sequences described by a 54-residue domain found in the N-terminal region of plant proteins, the vast majority of which contain a ZF-HD class homeobox domain toward the C terminus. The region between the two domains typically is rich in low complexity sequence. The companion ZF-HD homeobox domain is described in INTERPRO:IPR006455.

A one-hybrid screen resulted in the cloning of four different members of a novel class of plant homeodomain proteins, which are most likely involved in the mesophyll-specific expression of the C4 PEPCase gene in C4 species of the genus Flaveria. Inspection of the homeodomains of the four proteins reveals that they share many common features with homeodomains described so far, but there are also significant differences. Interestingly, this class of homeodomain proteins occurs also in Arabidopsis thaliana and other C3 plants. One-hybrid experiments as well as in vitro DNA binding studies confirmed that these novel homeodomain proteins specifically interact with the proximal region of the C4 PEPCase (C4 phosphoenolpyruvate carboxylase) gene. The N-terminal domains of the homeodomain proteins contain highly conserved sequence motifs. Two-hybrid experiments show that these motifs are sufficient to confer homo- or heterodimer formation between the proteins. Mutagenesis of conserved cysteine residues within the dimerization domain indicates that these residues are essential for dimer formation. Therefore, we designate this novel class of homeobox proteins ZF-HD, for zinc finger homeodomain protein. Our data suggest that the ZF-HD class of homeodomain proteins may be involved in the establishment of the characteristic expression pattern of the C4 PEPCase gene.

Windhovel A, Hein I, Dabrowa R, Stockhaus J.
Characterization of a novel class of plant homeodomain proteins that bind to the C4 phosphoenolpyruvate carboxylase gene of Flaveria trinervia.
Plant Mol Biol. 2001 Jan;45(2):201-14.
PMID: 11289511