proteinase /pro·tein·ase/ (pro´tēn-ās″) endopeptidase.
proteinase
endopeptidase [en″do-pep´tĭ-dās]
pro·tein·ase (pr t n- 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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