<prompt> All of the following are trypsin inhibitors, except:Alpha - 1 antitrypsinAlpha - 1 - antiproteinaseEnterokinaseEgg - white  <response>: Enterokinase is a glycoprotein enzyme that activates trypsin and is present in the brush border of intestine. Ref: Biochemistry By Mary K. Campbell, Shawn O. Farrell, 7th Edition, Page 176; Harpers Textbook of Biochemistry, 27th Edition, Page 597 