Journal
MOLECULAR CELL
Volume 5, Issue 1, Pages 85-95Publisher
CELL PRESS
DOI: 10.1016/S1097-2765(00)80405-0
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Passage through mitosis is required to reset replication origins for the subsequent S phase. During mitosis, a series of biochemical reactions involving cyclin-dependent kinases (CDKs), the anaphase promoting complex or cyclosome (APC/C), and a mitotic exit network including Cdc5, 14, and 15 coordinates the proper separation and segregation of sister chromatids. Here we show that cyclin B/CDK inactivation can drive origin resetting in either early S phase or mitosis. This origin resetting occurs efficiently in the absence of APC/C function and mitotic exit network function. We conclude that CDK inactivation is the single essential event in mitosis required to allow pre-RC assembly for the next cell cycle.
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