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Cohesin and Cdk1: an anaphase barricade

Separation of sister chromatids at anaphase in metazoan cells requires only the cleavage of the kleisin subunit of centromeric cohesin, but efficient poleward movement of separated sisters requires the associated loss in Cdk1 activity. Activation of the anaphase-promoting complex/cyclosome ensures these events are coordinated.

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Figure 1: Cohesin provides sufficient microtubule countertension to maintain metaphase.
Figure 2: Efficient poleward movement of sisters at anaphase requires RAD21 cleavage and loss of Cdk1 activity.

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Jones, K. Cohesin and Cdk1: an anaphase barricade. Nat Cell Biol 12, 106–108 (2010). https://doi.org/10.1038/ncb0210-106

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