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XB-ART-1417
Dev Cell 2005 Sep 01;93:309-10. doi: 10.1016/j.devcel.2005.08.006.
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Shake it, don't break it: positive feedback and the evolution of oscillator design.

Cross FR , Siggia ED .


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In cell cycle control, a negative feedback oscillator design is shown to be reinforced with a positive feedback loop, giving a robust oscillatory architecture that is surprisingly common in biology.

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Species referenced: Xenopus
Genes referenced: cdc25a cdk1 wee1