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enterokinase

/ˌɛntərəʊˈkaɪneɪz/
noun
1.
an enzyme in intestinal juice that converts trypsinogen to trypsin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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enterokinase in Medicine

enterokinase en·ter·o·ki·nase (ěn'tə-rō-kī'nās', -nāz', -kĭn'ās', -āz')
n.
An enzyme secreted by the upper intestinal mucosa that catalyzes the conversion of the inactive trypsinogen to trypsin. Also called enteropeptidase.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia Article for enterokinase

proteolytic enzyme (q.v.), secreted from the duodenal mucosa, that changes the inactive pancreatic secretion trypsinogen into trypsin, one of the enzymes that digest proteins. Enterokinase is believed to be produced by the glands of Brunner in the membrane lining of the duodenum. It resists destruction from the various enzymes in the small intestine but is destroyed by bacteria in the large intestine. Enterokinase can also change inactive procarboxypeptidase into the active enzyme carboxypeptidase.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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