[gene] D site of albumin promoter (albumin D-box) binding protein, also known as DBP, is a protein which in humans is encoded by the DBP gene. DBP is a member of the PAR bZIP (Proline and Acidic amino acid-Rich basic leucine ZIPper) transcription factor family. DBP binds to an upstream promoter in the insulin gene. ... Found on http://en.wikipedia.org/wiki/DBP_(gene)