Abstract
G1 cyclins are considered essential for DNA replication and cell division. A recent report now shows that some cells can cycle in the absence of G1 cyclins. In embryonic stem cells and cancer cells, G1 cyclins are required to activate cyclin-dependent kinases to phosphorylate core pluripotency factors and maintain pluripotency.
MeSH terms
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Animals
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Cell Cycle
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Cyclin G1 / metabolism*
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Cyclin-Dependent Kinases / metabolism
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Cytoprotection*
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Mice
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Models, Biological
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Mouse Embryonic Stem Cells / cytology
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Mouse Embryonic Stem Cells / metabolism
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Pluripotent Stem Cells / cytology*
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Pluripotent Stem Cells / metabolism*
Substances
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Cyclin G1
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Cyclin-Dependent Kinases