Figure 28.22. Transcription-Factor-Binding Sites.

Figure 28.22Transcription-Factor-Binding Sites

These multiple binding sites for transcription factors were mapped by footprinting. (A) Binding of Sp1 (green) to the SV40 viral promoter and to the dihydrofolate reductase (DHFR) promoter. (B) Binding of HSTF (blue) to a Drosophila heat-shock promoter. [After W. S. Dynan and R. Tjian. Nature 316(1985):774.]

From: Section 28.2, Eukaryotic Transcription and Translation Are Separated in Space and Time

Cover of Biochemistry
Biochemistry. 5th edition.
Berg JM, Tymoczko JL, Stryer L.
New York: W H Freeman; 2002.
Copyright © 2002, W. H. Freeman and Company.

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