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. 1997 Nov 11;94(23):12268–12273. doi: 10.1073/pnas.94.23.12268

Figure 4.

Figure 4

Model for the structure of the TBP-IIB-IIF-RNAPII-promoter complex (two views: upstream end at right in A, downstream end at right in B). TBP, white; IIB, blue; positions of IIF RAP30 and IIF RAP74, yellow; RNAPII, red; DNA template strand, green; DNA nontemplate strand, turquoise; the transcription start, yellow. NT, proposed binding site for the nontemplate strand of the transcription bubble in open and elongation complexes. RNA, proposed emergence point of nascent RNA in elongation complexes.