Cdk2 and Cdk4 cooperatively control the expression of Cdc2
2006
Cdk2 and Cdk4's Role in Cell Cycle Regulation
publication
Evidence: moderate
Author Information
Author(s): Berthet Cyril, Kaldis Philipp
Primary Institution: National Cancer Institute
Hypothesis
Cdk2 and Cdk4 are required to phosphorylate Rb during late embryogenesis.
Conclusion
Cdk2 and Cdk4 are essential for proper cell cycle progression and Rb phosphorylation during late embryogenesis.
Supporting Evidence
- Cdk2 and Cdk4 are required for Rb phosphorylation during late embryogenesis.
- Loss of Cdk2 and Cdk4 leads to reduced cell proliferation and embryonic lethality.
- Rb phosphorylation is essential for the regulation of E2F-inducible genes.
Takeaway
Cdk2 and Cdk4 help cells divide properly, especially when babies are developing in the womb.
Methodology
The study involved generating Cdk2/Cdk4 double knockout mice and analyzing their cell proliferation and Rb phosphorylation.
Limitations
The study does not fully explain why Rb phosphorylation declines only at midgestation.
Digital Object Identifier (DOI)
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