E26 Protein, also known as Ets-1, is a transcription factor that plays a crucial role in regulating gene expression. It is part of the ETS family of proteins, which are involved in various biological processes, including cell growth, differentiation, and apoptosis. E26 Protein binds to specific DNA sequences, influencing the transcription of target genes. This protein is particularly important in the development and function of the immune system, as well as in certain cancers. Abnormal activity of E26 Protein can lead to dysregulation of genes, contributing to tumorigenesis and other diseases. Understanding its function can help in developing targeted therapies.