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Nature Chemical Biology 4, 270–271 (1 May 2008) | doi:10.1038/nchembio0508-270

Engineering protease specificity made simple, but not simpler

Enrico Di Cera

Genes encoding for proteolytic enzymes make up 2–4% of the typical genome. This formidable arsenal comes with exquisite substrate specificity for a limited set of amino acid residues.