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proteinase

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proteinase /pro·tein·ase/ (pro´tēn-ās″) endopeptidase.
pro·tein·ase (prtn-s, -z)
n.
A protease that begins the hydrolytic breakdown of proteins usually by splitting them into polypeptide chains.

proteinase
[prō′tē·inās]
Etymology: Gk, proteios, first rank, ase, enzyme suffix
a proteolytic enzyme that splits protein molecules at central linkages. Also called tryptase.

endopeptidase [en″do-pep´tĭ-dās]
any peptidase that catalyzes the cleavage of internal bonds in a polypeptide or protein. Inhibition of the action of endopeptidases (proteases) in viruses causes formation of noninfectious particles; certain antiviral drugs work in this way (see protease inhibitors). Called also protease and proteinase.

proteinase
any enzyme that catalyzes the splitting of interior peptide bonds in a protein; an endopeptidase.

proteinase resistant protein (prp)
a protein which resists digestion by proteinases; the amyloid fibrils in brain tissue of sheep affected with scrapie contain such a prp.


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Beside that they can be substantially degraded by proteinase K or some PLA degrading microorganisms (20-22) existing in nature.
9781604560114 The cystatin superfamily of proteinase inhibitors.
32) is a major cysteine proteinase, isolated from pineapple (Ananas comosus) stem.
 
 
 
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