Western blot of human melanoma cells incubated with varying doses of the radiomimetic drug NCS showing specific immuno-labeling of the ~74k ATF2 protein phosphorylated at Ser490 and Ser498.
This gene encodes a transcription factor that is a member of the leucine zipper family of DNA binding proteins. This protein binds to the cAMP-responsive element (CRE), an octameric palindrome. The protein forms a homodimer or heterodimer with c-Jun and stimulates CRE-dependent transcription. The protein is also a histone acetyltransferase (HAT) that specifically acetylates histones H2B and H4 in vitro; thus it may represent a class of sequence-specific factors that activate transcription by direct effects on chromatin components. Additional transcript variants have been identified but their biological validity has not been determined. [provided by RefSeq
Other Designations:
OTTHUMP00000163262,activating transcription factor 2 splice variant ATF2-var2,cAMP responsive element binding protein 2, formerly