PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Spinacia oleracea
bZIP Family
Species TF ID Description
Sp_000070_yfgx.t1bZIP family protein
Sp_007860_sigc.t1bZIP family protein
Sp_007860_sigc.t2bZIP family protein
Sp_008030_ekix.t1bZIP family protein
Sp_008740_hruy.t1bZIP family protein
Sp_014620_dsee.t1bZIP family protein
Sp_026350_tdhu.t1bZIP family protein
Sp_028480_oaxd.t1bZIP family protein
Sp_028880_knhe.t1bZIP family protein
Sp_028880_knhe.t2bZIP family protein
Sp_031330_ioco.t1bZIP family protein
Sp_035150_qgmo.t1bZIP family protein
Sp_036500_ywnu.t1bZIP family protein
Sp_047290_czfo.t1bZIP family protein
Sp_050870_cctg.t1bZIP family protein
Sp_051660_mood.t1bZIP family protein
Sp_053150_pjzg.t1bZIP family protein
Sp_061760_atuk.t1bZIP family protein
Sp_064170_aizt.t1bZIP family protein
Sp_064170_aizt.t2bZIP family protein
Sp_068890_kijg.t1bZIP family protein
Sp_071310_wcgk.t1bZIP family protein
Sp_071390_ugwc.t1bZIP family protein
Sp_071390_ugwc.t2bZIP family protein
Sp_075240_tnxn.t1bZIP family protein
Sp_082670_gaee.t1bZIP family protein
Sp_086720_jmtc.t1bZIP family protein
Sp_086740_dfxs.t1bZIP family protein
Sp_086850_uxun.t1bZIP family protein
Sp_086850_uxun.t2bZIP family protein
Sp_092640_iogy.t1bZIP family protein
Sp_092640_iogy.t2bZIP family protein
Sp_093050_pwuo.t1bZIP family protein
Sp_098480_xexg.t1bZIP family protein
Sp_104820_frca.t1bZIP family protein
Sp_111190_difc.t1bZIP family protein
Sp_111190_difc.t2bZIP family protein
Sp_117840_nina.t1bZIP family protein
Sp_122780_mkon.t1bZIP family protein
Sp_130900_cgke.t1bZIP family protein
Sp_132190_fhmy.t1bZIP family protein
Sp_132770_zpjm.t1bZIP family protein
Sp_133080_xgkz.t1bZIP family protein
Sp_156330_ptoi.t1bZIP family protein
Sp_157290_hwof.t1bZIP family protein
Sp_157420_rawf.t1bZIP family protein
Sp_164610_dect.t1bZIP family protein
Sp_166700_qmuh.t1bZIP family protein
Sp_172820_xcxy.t1bZIP family protein
Sp_181430_ukog.t1bZIP family protein
Sp_184540_kwch.t1bZIP family protein
Sp_187760_muof.t1bZIP family protein
Sp_187760_muof.t2bZIP family protein
Sp_188050_cydp.t1bZIP family protein
Sp_193430_xucf.t1bZIP family protein
Sp_204710_rzws.t1bZIP 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