Article
Repression of nascent strand elongation by deregulated Cdt1 during DNA replication in Xenopus egg extracts.
Molecular biology of the cell - 1 Feb 2009
Tsuyama Takashi, Watanabe Saori, Aoki Ayako, Cho Yunje, Seki Masayuki, Enomoto Takemi, Tada Shusuke
Abstract excerpt
Excess Cdt1 reportedly induces rereplication of chromatin in cultured cells and Xenopus egg extracts, suggesting that the regulation of Cdt1 activity by cell cycle-dependent proteolysis and expression of the Cdt1 inhibitor geminin is crucial for the inhibition of chromosomal overreplication between S phase and metaphase. We analyzed the consequences of excess Cdt1 for DNA replication and found that increased Cdt1...
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