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proteinase

[proh-tee-neys, -neyz, -tee-i-] /ˈproʊ tiˌneɪs, -ˌneɪz, -ti ɪ-/
noun, Biochemistry
1.
any of a group of enzymes that are capable of hydrolyzing proteins.
Origin
1925-1930
1925-30; protein + -ase
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for proteinase

proteinase

/ˈprəʊtɪˌneɪs; -ˌneɪz/
noun
1.
another name for endopeptidase
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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proteinase in Medicine

proteinase pro·tein·ase (prōt'n-ās', -āz', prō'tē-nās', -nāz')
n.
A protease that begins the hydrolytic breakdown of proteins usually by splitting them into polypeptide chains.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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proteinase in Science
proteinase
  (prōt'n-ās')   
A protease that begins the hydrolytic breakdown of proteins, usually by splitting them into polypeptide chains.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Article for proteinase

peptidase

any of a group of enzymes that break the long chainlike molecules of proteins into shorter fragments (peptides) and eventually into their components, amino acids. Proteolytic enzymes are present in bacteria and plants but are most abundant in animals. In the stomach, protein materials are attacked initially by the gastric enzyme pepsin. When the protein material is passed to the small intestine, proteins, which are only partially digested in the stomach, are further attacked by proteolytic enzymes secreted by the pancreas.

Learn more about peptidase with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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