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Science  13 Nov 1998:
Vol. 282, Issue 5392, pp. 1223
DOI: 10.1126/science.282.5392.1223e

Cells use proteolysis, or the cleavage of proteins, to dispose of old or damaged proteins. But new evidence summarized in the Enhanced Perspective on p. 1279 shows that proteolysis can be creative as well: It can liberate fragments on cell surfaces that stimulate receptors or help cells adhere to one another. Hyperlinks lead to resources on membranes and proteins.

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