Abstract
Isolated transcription complexes contain a protein kinase that phosphorylates the heptapeptide repeats of the carboxy-terminal domain (CTD) of the RNA polymerase II (RNAP II) large subunit in an apparently promoter-dependent manner. We now show that the essential features of this reaction can be reproduced in a reconstituted system containing three macromolecular components: a fusion protein consisting of the CTD of RNAP II fused to a heterologous DNA-binding domain, an activating DNA fragment containing the recognition sequence for the fusion protein, and a protein kinase that binds nonspecifically to DNA. This kinase closely resembles a previously known DNA-dependent protein kinase. Evidently, the association of the CTD with DNA provides a key signal for phosphorylation. There appears to be no absolute requirement for specific contacts with other DNA-bound transcription factors.
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Dates
Type | When |
---|---|
Created | 18 years, 2 months ago (June 5, 2007, 5:15 p.m.) |
Deposited | 3 years, 9 months ago (Nov. 13, 2021, 11:24 p.m.) |
Indexed | 1 month, 3 weeks ago (July 2, 2025, 2:46 p.m.) |
Issued | 33 years, 5 months ago (March 1, 1992) |
Published | 33 years, 5 months ago (March 1, 1992) |
Published Online | 33 years, 5 months ago (March 1, 1992) |
Published Print | 33 years, 5 months ago (March 1, 1992) |
@article{Peterson_1992, title={DNA binding provides a signal for phosphorylation of the RNA polymerase II heptapeptide repeats.}, volume={6}, ISSN={1549-5477}, url={http://dx.doi.org/10.1101/gad.6.3.426}, DOI={10.1101/gad.6.3.426}, number={3}, journal={Genes & Development}, publisher={Cold Spring Harbor Laboratory}, author={Peterson, S R and Dvir, A and Anderson, C W and Dynan, W S}, year={1992}, month=mar, pages={426–438} }