Now, what's so special about the Tata box? What's so special about the core promoter in general? So this is where all the different types of transcription factors and regulatory proteins actually bind to, and they form a complex that consists of over 50 different types of proteins. And this complex is necessary for transcription to actually take place. So we have this complex of proteins that binds onto our Tata box and then basically calls upon other proteins, those other proteins bind, forming a larger complex and so forth. And eventually that interacts with the protein found at the start side and that initiates the process of RNA transcription.