The protein encoded by this gene is a zinc finger transcription factor that binds to GC-rich motifs of many promoters. The encoded protein is involved in many cellular processes, including cell differentiation, cell growth, apoptosis, immune responses, response to DNA damage, and chromatin remodeling. Post-translational modifications such as phosphorylation, acetylation, glycosylation, and proteolytic processing significantly affect the activity of this protein, which can be an activator or a repressor. Three transcript variants encoding different isoforms have been found for this gene.,SP1,Epigenetics & Nuclear Signaling,Transcription Factors,Endocrine & Metabolism,Mitochondrial metabolism,Mitochondrial Biogenesis,Nucleotide metabolism,Molecular processes,Neuroscience,Neurodegenerative Diseases,Stem Cells,SP1