Abstract
Cyclin A is involved in the control of S phase and mitosis in mammalian cells. Expression of the cyclin A gene in nontransformed cells is characterized by repression of its promoter during the G1 phase of the cell cycle and its induction at S-phase entry. We show that this mode of regulation is mediated by the transcription factor E2F, which binds to a specific site in the cyclin A promoter. It differs from the prototype E2F site in nucleotide sequence and protein binding; it is bound by E2F complexes containing cyclin E and p107 but not pRB. Ectopic expression of cyclin D1 triggers premature activation of the cyclin A promoter by E2F, and this effect is blocked by the tumor suppressor protein p16INK4.
Dates
Type | When |
---|---|
Created | 19 years, 3 months ago (May 31, 2006, 9:24 a.m.) |
Deposited | 3 years, 4 months ago (April 13, 2022, 1:52 p.m.) |
Indexed | 3 weeks, 6 days ago (Aug. 5, 2025, 9:12 a.m.) |
Issued | 29 years, 9 months ago (Nov. 21, 1995) |
Published | 29 years, 9 months ago (Nov. 21, 1995) |
Published Online | 29 years, 9 months ago (Nov. 21, 1995) |
Published Print | 29 years, 9 months ago (Nov. 21, 1995) |
@article{Schulze_1995, title={Cell cycle regulation of the cyclin A gene promoter is mediated by a variant E2F site.}, volume={92}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.92.24.11264}, DOI={10.1073/pnas.92.24.11264}, number={24}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Schulze, A and Zerfass, K and Spitkovsky, D and Middendorp, S and Bergès, J and Helin, K and Jansen-Dürr, P and Henglein, B}, year={1995}, month=nov, pages={11264–11268} }