bZIP transcription factor, bZIP-1 <p> The basic-leucine zipper (bZIP) transcription factors [<cite idref="PUB00004967"/>, <cite idref="PUB00001084"/>] of eukaryotic are proteins that contain a basic region mediating sequence-specific DNA-binding followed by a leucine zipper region (see <db_xref db="INTERPRO" dbkey="IPR002158"/>) required for dimerization.</p>