Sp1 transcription factor (SP1) is a transcription factor involved in gene expression in the early development of an organism. It belongs to the Sp/KLF family of transcription factors. The SP1 transcription factor contains a zinc finger protein motif, by which it binds directly to DNA ...

CCAAT/enhancer binding proteins (C/EBP) are a group of bZIP transcription factors, consisting of C/EBPalpha, beta, delta, epsilon, gamma and zeta, which can bind as homodimers to certain promoters and enhancers. C/EBP is important in the regulation ...

cAMP responsive element binding protein 1 (CREB1) is a transcription factor that is a member of the leucine zipper family of DNA binding proteins. CREB1 binds as a homodimer to the cAMP-responsive element, an octameric palindrome. CREB1 is phosphorylated by several protein kinases, ...