A large superfamily of transcription factors that contain a region rich in BASIC AMINO ACID residues followed by a LEUCINE ZIPPER domain.

Synonyms: bZIP Transcription Factor, Transcription Factors, bZIP, GBF bZIP Transcription Factors, bZIP Proteins, Basic Leucine Zipper Transcription Factor, bZIP G-Box Binding Factors, bZIP Protein, 0, bZIP G-Box Binding Factor, Basic Leucine Zipper Transcription Factors, bZIP G Box Binding Factor, bZIP G Box Binding Factors, GBF bZIP Transcription Factor, bZIP Transcription Factors, Transcription Factor, bZIP, Factor, bZIP Transcription, Protein, bZIP, Basic-Leucine Zipper Transcription Factors, Basic-Leucine Zipper Transcription Factor