PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Capsicum annuum
bZIP Family
Species TF ID Description
CA00g10990bZIP family protein
CA00g41470bZIP family protein
CA00g58490bZIP family protein
CA00g71840bZIP family protein
CA00g71910bZIP family protein
CA01g07960bZIP family protein
CA01g13280bZIP family protein
CA01g24080bZIP family protein
CA01g30040bZIP family protein
CA02g00960bZIP family protein
CA02g05350bZIP family protein
CA02g05650bZIP family protein
CA02g17700bZIP family protein
CA02g20420bZIP family protein
CA02g22070bZIP family protein
CA02g22950bZIP family protein
CA02g24850bZIP family protein
CA02g26760bZIP family protein
CA03g10440bZIP family protein
CA04g07280bZIP family protein
CA04g08520bZIP family protein
CA04g13210bZIP family protein
CA04g17490bZIP family protein
CA04g18620bZIP family protein
CA04g21480bZIP family protein
CA04g23110bZIP family protein
CA04g23540bZIP family protein
CA05g03080bZIP family protein
CA05g12410bZIP family protein
CA06g00250bZIP family protein
CA06g07150bZIP family protein
CA06g07270bZIP family protein
CA06g07980bZIP family protein
CA06g12310bZIP family protein
CA06g22960bZIP family protein
CA07g17360bZIP family protein
CA08g08010bZIP family protein
CA08g10300bZIP family protein
CA08g12820bZIP family protein
CA08g19310bZIP family protein
CA09g00890bZIP family protein
CA09g07790bZIP family protein
CA10g18380bZIP family protein
CA10g18960bZIP family protein
CA10g19380bZIP family protein
CA10g20850bZIP family protein
CA10g21890bZIP family protein
CA10g22430bZIP family protein
CA11g01500bZIP family protein
CA11g02380bZIP family protein
CA11g10980bZIP family protein
CA12g10100bZIP family protein
CA12g13050bZIP 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