Sp1 (Specificity Protein 1)

Specificity Protein 1 (Sp1) is a transcription factor, a type of protein that helps control gene expression. It binds to specific DNA sequences near genes, influencing whether those genes are turned on or off. Sp1 plays a crucial role in processes like cell growth, development, and response to environmental signals. Its activity is tightly regulated, and abnormal Sp1 levels or function can be associated with diseases like cancer. Overall, Sp1 acts as a key regulator in the complex system that determines how genes are expressed in our cells.