InterPro domain: IPR020983

Basic leucine-zipper (bZIP) proteins are found in eukaryotes. They are typically between 174 and 411 amino acids in length. Various bZIP proteins have been found and shown to play a role in seed-specific gene expression. bZIP binds to the alpha-globulin gene promoter, but not to promoters of other major storage genes such as glutelin, prolamin and albumin [ 1 ].

This entry represents a C-terminal domain found in bZIP proteins. It is found in association with PF00170 . There is a conserved KVK sequence motif and a single completely conserved residue K that may be functionally important.

1. Characterization of a novel rice bZIP protein which binds to the alpha-globulin promoter. Plant Mol. Biol. 33, 513-22