Gene Details:

Protein Features:

Annotation Proteins:

  • Refseq:  XP_009797256.1  — PREDICTED: uncharacterized protein LOC104243716
  • Refseq:  XP_009797257.1  — PREDICTED: uncharacterized protein LOC104243716
  • Refseq:  XP_009797258.1  — PREDICTED: uncharacterized protein LOC104243716
  • Refseq:  XP_009797259.1  — PREDICTED: uncharacterized protein LOC104243716
  • Refseq:  XP_009797260.1  — PREDICTED: uncharacterized protein LOC104243716
  • Refseq:  XP_016502370.1  — PREDICTED: basic leucine zipper 23-like
  • Refseq:  XP_016502371.1  — PREDICTED: basic leucine zipper 23-like
  • Refseq:  XP_016502372.1  — PREDICTED: basic leucine zipper 23-like
  • Refseq:  XP_016502373.1  — PREDICTED: basic leucine zipper 23-like
  • Refseq:  XP_016502374.1  — PREDICTED: basic leucine zipper 23-like
  • Swissprot:  Q8GTS2  — BZP23_ARATH; Basic leucine zipper 23
  • TrEMBL:  A0A1S4CMT9  — A0A1S4CMT9_TOBAC; basic leucine zipper 23-like
  • TrEMBL:  A0A1U7YEN7  — A0A1U7YEN7_NICSY; uncharacterized protein LOC104243716
  • STRING:  XP_009797256.1  — (Nicotiana sylvestris)

Gene Ontology:

  • GO:0006355  — Biological Process — regulation of transcription, DNA-templated
  • GO:0071294  — Biological Process — cellular response to zinc ion
  • 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:
  • >Niben101Scf07614g00005.1|Nicotiana_benthamiana|bZIP|Niben101Scf07614g00005.1
Protein Sequence:
  • >Niben101Scf07614g00005.1|Nicotiana_benthamiana|bZIP|Niben101Scf07614g00005.1
    MDDGELEFSNQEMLSSSNFGEFPDSGSMDSFFNEILKDTHACTHTHTCNPPGPDNTHTHTCYHVHTKIVPPLSEDKTASDDTAESAEGKRKKRPLGNREAVRKYREKKKARAASLEDEVVRLRAINQQLMKRLQGQAVLEAEIARLKCLLVDIRGRIEGEIGSFPYQKPMKSGNVYQNLVNPNLPGAYVMNPCNLQCDDRVYCLHPGSEGKNLDDTALDGQGFDNCEFETLQCLGNQTSELKEGSGCALGNVAPTGNPSGGSKRKASDDTAESAEGKRKKRPLGNREAVRKYREKKKARAASLEDEVVRLRAINQQLMKRLQGQAVLEAEIARLKCLLVDIRGRIEGEIGSFPYQKPMKSGNVYQNLVNPNLPGAYVMNPCNLQCDDRVYCLHPGSEGKNLDDTALDGQGFDNCEFETLQCLGNQTSELKEGSGCALGNVAPTGNPSGGSKRKGELD