| 释义 |
protease Physiol. Chem.|ˈprəʊtiːeɪs|
[f. proteolysis + -ase in diastase; first formed as F. proteinase (G. Malfitano 1900, in Ann. de l'Inst. Pasteur XIV. 420).]
A proteolytic enzyme or ferment; a proteinase or peptidase.
1903Ann. Bot. XVII. 237 There is at present evidence that enzymes which digest proteids (proteases) occur..in certain lowly Algae, in some fungi, and in various Phanerogams. 1904Vines in Annals of Bot. XVIII. 289 (Article) The Proteases of Plants... Hitherto the proteases of both plants and animals have been classified as ‘peptic’ or as ‘tryptic’, in accordance with their general resemblance to either the pepsin or the trypsin of the animal body... But with the discovery of erepsin by Cohnheim, this simple classification of the proteases has become inadequate, for erepsin is neither ‘peptic’ nor ‘tryptic’. Ibid. 316 It appears..that erepsin is present in the onion without any other protease. 1923[see peptidase]. 1931[see proteinase]. 1949Abraham & Heatley in H. W. Florey et al. Antibiotics I. ii. 85 This can happen..by the secretion of destructive exocellular enzymes such as penicillinase, protease, or peptidase. 1962A. Spector in A. Pirie Lens Metabolism Rel. Cataract 330 An endopeptidase called β-protease..will attack lens protein in acid pH and a second enzyme, the α-protease,..attacks the breakdown products produced by the endopeptidase. 1973Zeffren & Hall Study of Enzyme Mechanisms ix. 168 Chymotrypsin is one of several proteolytic enzymes or proteases which function collectively in the mammalian small intestine. 1976Path. Ann. XI. 380 This may be related in part to the presence of protease inhibitors in connective tissues. |