Cyclin B1 transcription is enhanced by the p300 coactivator and regulated during the cell cycle by a CHR-dependent repression mechanism - PubMed (original) (raw)

Cyclin B1 transcription is enhanced by the p300 coactivator and regulated during the cell cycle by a CHR-dependent repression mechanism

Mark Wasner et al. FEBS Lett. 2003.

Free article

Abstract

Cyclin B is a central regulator of transition from the G(2) phase of the cell cycle to mitosis. In mammalian cells two B-type cyclins have been characterised, cyclin B1 and B2. Both are expressed with a maximum in G(2) and their synthesis is mainly regulated on the transcriptional level. We show that a single cell cycle genes homology region, lacking a functional cell cycle-dependent element in tandem with it, contributes most of the cell cycle-dependent transcription from the cyclin B1 promoter. The coactivator p300 binds to the cyclin B1 promoter and synergises with the transcription factor NF-Y in activating transcription of cyclin B1.

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Cyclin B1 transcription is enhanced by the p300 coactivator and regulated during the cell cycle by a CHR-dependent repression mechanism - PubMed (original) (raw)