PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Arachis hypogaea
bZIP Family
Species TF ID Description
Ahy000276bZIP family protein
Ahy000483bZIP family protein
Ahy000862bZIP family protein
Ahy002911bZIP family protein
Ahy002932bZIP family protein
Ahy007462bZIP family protein
Ahy009813bZIP family protein
Ahy010420bZIP family protein
Ahy010606bZIP family protein
Ahy010684bZIP family protein
Ahy011117bZIP family protein
Ahy011307bZIP family protein
Ahy013688bZIP family protein
Ahy013944bZIP family protein
Ahy014988bZIP family protein
Ahy015060bZIP family protein
Ahy015136bZIP family protein
Ahy016553bZIP family protein
Ahy017502bZIP family protein
Ahy017740bZIP family protein
Ahy018650bZIP family protein
Ahy019786bZIP family protein
Ahy019910bZIP family protein
Ahy020043bZIP family protein
Ahy021684bZIP family protein
Ahy022413bZIP family protein
Ahy022599bZIP family protein
Ahy022827bZIP family protein
Ahy022919bZIP family protein
Ahy009659bZIP family protein
Ahy012338bZIP family protein
Ahy012513bZIP family protein
Ahy013660bZIP family protein
Ahy016622bZIP family protein
Ahy016889bZIP family protein
Ahy017047bZIP family protein
Ahy017683bZIP family protein
Ahy019558bZIP family protein
Ahy020803bZIP family protein
Ahy022676bZIP family protein
bZIP Family Introduction

The bZIP domain consists of two structural features located on a contiguous alpha-helix: first, a basic region of ~ 16 amino acid residues containing a nuclear localization signal followed by an invariant N-x7-R/K motif that contacts the DNA; and, second, a heptad repeat of leucines or other bulky hydrophobic amino acids positioned exactly nine amino acids towards the C-terminus, creating an amphipathic helix. To bind DNA, two subunits adhere via interactions between the hydrophobic sides of their helices, which creates a superimposing coiled-coil structure. The ability to form homo- and heterodimers is influenced by the electrostatic attraction and repulsion of polar residues flanking the hydrophobic interaction surface of the helices.

Plant bZIP proteins preferentially bind to DNA sequences with an ACGT core. Binding specificity is regulated by flanking nucleotides. Plant bZIPs preferentially bind to the A-box (TACGTA), C-box (GACGTC) and G-box (CACGTG), but there are also examples of nonpalindromic binding sites.

Jakoby M, Weisshaar B, Droge-Laser W, Vicente-Carbajosa J, Tiedemann J, Kroj T, Parcy F
bZIP transcription factors in Arabidopsis.
Trends Plant Sci, 2002. 7(3): p. 106-11.
PMID: 11906833