Living cells must do away with regulatory proteins that are not needed. News comes of a considerable advance in understanding how the main agent of destruction, the proteasome, catches its targets.
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Saeki, Y., Tanaka, K. Two hands for degradation. Nature 453, 460–461 (2008). https://doi.org/10.1038/453460a
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DOI: https://doi.org/10.1038/453460a
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