Transcription Initiation (start point, transcription factors, transcription initiation complex, TATA box)

- Promoters signal the transcription start point and usually extend several dozen nucleotide pairs upstream of the start point​ - Transcription factors help guide the binding of RNA polymerase and the initiation of transcription​ - The completed assembly of transcription factors and RNA polymerase II bound to a promoter is called a transcription initiation complex​ - A promoter called a TATA box is crucial in forming the initiation complex in eukaryotes​