| 释义 |
‖ proteolysis Phys. Chem.|prəʊtiːˈɒlɪsɪs|
[mod.L., f. *prōteo-, assumed combining form of protein + Gr. λύσις a loosening, solution.]
A term for a. The separation of the proteins from a protein-containing mixture; b. The splitting up of proteins by ferments. (Syd. Soc. Lex.)
Although parallel in form to electrolysis and hydrolysis (decomposition by the agency of electricity and of water), proteolysis is not parallel in sense: see quot. 1907.
1880Nature XXIII. 169/1 The second lecture chiefly relates to pepsin and the digestion of proteids; digestive proteolysis; the milk-curdling ferment. 1888Lancet 4 Feb. 234/2 An examination of the contents of the stomach proved that the gastric juice was diminished in quantity, and proteolysis impaired. 1890Billings Nat. Med. Dict., Proteolysis, the separation of proteids from a mixture. 1896Allbutt's Syst. Med. I. 97 Of these [substances] the more important are ferments, the results of proteolysis. 1907Recommendations of Committee 8 in Jrnl. Physiol. XXXV. Proc. 26 Jan., Derivatives of Proteins. Of these, the products of protein-hydrolysis (a term preferable to proteolysis) are those which require special attention. (Note. Terms such as proteolysis fail to convey a meaning in harmony with that which is conveyed by the terms electrolysis and hydrolysis (on which they are moulded) of decomposition by.)
Hence proteolyse |ˈprəʊtiːəʊlaɪz|, v. trans., to decompose or split up (proteins).
1902in Daily Chron. 22 Nov. 6/6 These experiments [of Professor Vines] definitely establish the fact..that an enzyme which actively proteolyses the simpler forms of proteid is present in all parts of the plant body. 1904Vines Proteases of Plants in Ann. Bot. Apr. 291 The results show that these Fungi can peptolyse Witte-peptone, with formation of leucin and tyrosin, and can proteolyse fibrin. |