Proteinase inhibitor for food processing

摘要

A cDNA encoding the cysteine proteinase inhibitor cystatin has been isolated from trout. The encoded cystatin protein is useful to inhibit cysteine proteinases in food processing, for example in the production of surimi. The full-length cystatin cDNA clone comprises 674 base pairs and encodes a protein of 132 amino acid residues, which is processed to a mature protein of 111 amino acids.