Based on the Random House Dictionary, © Random House, Inc. 2012.
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| Symbol: Se; atomic weight: 78.96; atomic number: 34 |
| Symbol: Cs; atomic weight: 132.905; atomic number: 55 |
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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.
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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proteinase  (prōt'n-ās') Pronunciation Key
A protease that begins the hydrolytic breakdown of proteins, usually by splitting them into polypeptide chains. |
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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proteinase
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.
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