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Dual functional regulators coordinate DNA replication and gene expression in proliferating cells.

Authors Tye, Bik Kwoon View this author's profile
Chang, Victoria K.
Issue Date 2004
Source Frontiers in bioscience , v. 9, 2004, p. 2548-2555
Summary Gene products for cell growth must meet the pace of DNA replication and vice versa during the cell division cycle, therefore coordination of DNA replication and gene expression is vital to proliferating cells. During development in multicellular organisms when rapid cell divisions must be accompanied by the expression of particular gene sets in differentiating tissues, this coordination is even more crucial. Undoubtedly, multiple strategies are used to ensure the coordination of gene expression and DNA replication. In this review, we focus on the strategy that uses dual functional factors to serve both the functions of replication initiator and transcription regulator. Classical examples are the dual functional replication initiator/transcription regulators, DnaA of E. coli and T antigen of SV40, which bind replication origins and regulate their own synthesis. Emerging examples in eukaryotes are the growth responsive transcription factor E2f, the MADS domain combinatorial transcription factor Mcm1, and a subunit of the MCM2-7 helicase, Mcm7.
ISSN 1093-4715
Language English
Format Article
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