Gene Details:

Protein Features:

Annotation Proteins:

  • Refseq:  XP_019168656.1  — PREDICTED: bZIP transcription factor 53-like
  • TrEMBL:  A0A1U8DUU8  — A0A1U8DUU8_CAPAN; Uncharacterized protein
  • TrEMBL:  A0A2G2V5P3  — A0A2G2V5P3_CAPBA; Uncharacterized protein
  • TrEMBL:  A0A2G2XZX4  — A0A2G2XZX4_CAPAN; bZIP transcription factor 53-like
  • TrEMBL:  A0A2G3AWU0  — A0A2G3AWU0_CAPCH; Uncharacterized protein
  • STRING:  XP_009801775.1  — (Nicotiana sylvestris)

Gene Ontology:

  • GO:0006355  — Biological Process — regulation of transcription, DNA-templated
  • GO:0003700  — Molecular Function — transcription factor activity, sequence-specific DNA binding
  • GO:0043565  — Molecular Function — sequence-specific DNA binding

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.

Literature:

Sequences:

CDS Sequence:
  • >Itr_sc000946.1_g00005.1|Ipomoea_trifida|bZIP|Itr_sc000946.1_g00005.1
    ATGTCTGGTATAAGGCAGAGTTGGAGCAGCTCTGGGTCAGAGAATGATCAAAGATATGCAGGGGTAGATGAGAAGAAGAGGAAGAGGATGATATCGAACCGCGAATCGGCGAGGAGGTCGAGGATGAAGAAACAGAAGCGGGTTCAAGAGCTGACTGAGGAAGTGGGGAGATTGCAGGCTGCAAACAGTGGCATTGTAGGGAGGATAGAGGAGATGAGCAAGAAGTATGAAGTTATGGCTACTGAGAAGAGTGTTCTGAGAGCCCAAGAAGCTGAGTTGAGTGAAAGGCTTAAGTACTTGAATGATGTGATGAAGAATAGTGGAGTGGGTGATTCTGATAATGCTGTTGCTGCTGCTGCAGATCCTTTGATGAATCCATGGCAGATTTTGTTCCCAAAGCTTCCCATTCCTGCTTCTTCTGGCTTGTTCAAATTCTGA
Protein Sequence:
  • >Itr_sc000946.1_g00005.1|Ipomoea_trifida|bZIP|Itr_sc000946.1_g00005.1
    MSGIRQSWSSSGSENDQRYAGVDEKKRKRMISNRESARRSRMKKQKRVQELTEEVGRLQAANSGIVGRIEEMSKKYEVMATEKSVLRAQEAELSERLKYLNDVMKNSGVGDSDNAVAAAADPLMNPWQILFPKLPIPASSGLFKF