Formation of the pre-initiation complex proceeds in five steps, recognition and binding of core promoter elements by TFIID, binding of TFIIA and TFIIB to the pol II promoter:TFIID complex, recruitment of RNA Polymerase II Holoenzyme by TFIIF to the pol II promoter:TFIID:TFIIA:TFIIB complex, binding of TFIIE to the growing preinitiation complex, and formation of the closed pre-initiation complex (Orphanides et al. 1997).
Orphanides, G, Reinberg, D, Lagrange, T
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