Abstract
By using site-specific protein-DNA photocrosslinking, we define the positions of TATA-binding protein, transcription factor IIB, transcription factor IIF, and subunits of RNA polymerase II (RNAPII) relative to promoter DNA within the human transcription preinitiation complex. The results indicate that the interface between the largest and second-largest subunits of RNAPII forms an extended, ≈240 Å channel that interacts with promoter DNA both upstream and downstream of the transcription start. By using electron microscopy, we show that RNAPII compacts promoter DNA by the equivalent of ≈50 bp. Together with the published structure of RNAPII, the results indicate that RNAPII wraps DNA around its surface and suggest a specific model for the trajectory of the wrapped DNA.
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Dates
Type | When |
---|---|
Created | 23 years, 1 month ago (July 26, 2002, 10:31 a.m.) |
Deposited | 3 years, 4 months ago (April 13, 2022, 2:15 p.m.) |
Indexed | 1 year ago (Aug. 6, 2024, 10:14 p.m.) |
Issued | 27 years, 9 months ago (Nov. 11, 1997) |
Published | 27 years, 9 months ago (Nov. 11, 1997) |
Published Online | 27 years, 9 months ago (Nov. 11, 1997) |
Published Print | 27 years, 9 months ago (Nov. 11, 1997) |
@article{Kim_1997, title={Trajectory of DNA in the RNA polymerase II transcription preinitiation complex}, volume={94}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.94.23.12268}, DOI={10.1073/pnas.94.23.12268}, number={23}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Kim, Tae-Kyung and Lagrange, Thierry and Wang, Yuh-Hwa and Griffith, Jack D. and Reinberg, Danny and Ebright, Richard H.}, year={1997}, month=nov, pages={12268–12273} }