
It is often used during in vitro experiments when a specific enzymatic reaction is being studied. When cells are lysed for these studies, proteases, many of which are contained within lysosomes, are released. These proteases, if freely present in the lysate, would destroy any products from the reaction being studied, and make the experiment uninte...
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http://en.wikipedia.org/wiki/Leupeptin

A peptide (N-acetylleucylleucylarginyl) from Streptomyces species that inhibits cathepsin B, papain, trypsin, plasmin, and cathepsin D. ... (05 Mar 2000) ...
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http://www.encyclo.co.uk/local/20973

Family of modified-tripeptide protease inhibitors. Commonest is N-acetyl-Leu-Leu-argininal.
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Type: Term Pronunciation: lū-pep′tin Definitions: 1. One of several modified tripeptide protease inhibitors from Streptomyces sp. that inhibits cathepsin B, papain, trypsin, plasmin, and cathepsin D. The most commonly used leupeptin is N-acetylleucylleucylarginal.
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http://www.medilexicon.com/medicaldictionary.php?t=49184
No exact match found.