First of all, sorry if this is not the place for this kind of question or even if it's a silly question... Anyway... I came across these two terms: "promoters" and "transcription factor biding site (TFBS)". I get the concept of promoters and as far as I've read, TFBS are the same thing as promoters. However, since is my thesis, I cannot have this kind of doubt. So, is there any difference between those terms?