cathepsin

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ca·thep·sin

 (kə-thĕp′sĭn)
n.
Any of various enzymes found in animal tissue that catalyze the hydrolysis of proteins into smaller proteins.

[German Kathepsin, from Greek kathepsein, to digest : kat-, kata-, cata- + hepsein, to boil.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

cathepsin

(kəˈθɛpsɪn)
n
(Biochemistry) a proteolytic enzyme responsible for the autolysis of cells after death
[C20: from Greek kathepsein to boil down, soften]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

ca•thep•sin

(kəˈθɛp sɪn)

n.
any of a class of intracellular enzymes that break down protein in certain abnormal conditions and after death.
[1925–30; < Greek kathéps(ein) to digest]
ca•thep′tic (-tɪk) adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
Kirschke, "Cathepsin B, Cathepsin H, and cathepsin L," in Methods in Enzymology, L.
DAP I by 429%, DAP II by 355% and DAP IV by 178%, followed by cathepsin L (246%), cathepsin D (123%), tripeptidyl aminopeptidase (109%), arginyl aminopeptidase (78%), alanyl aminopeptidase (72%), leucyl aminopeptidase (49%), cathepsin H (37%) and proline endopeptidase (19%).
Of lysosomal proteases only cathepsin H (+18%) and D (-26%) were affected in surviving flies while in dead flies cathepsin B and L were additionally affected.