Steven F S, Griffin M M, Anees M, Benbow E W
Department of Biochemistry and Molecular Biology, School of Biological Sciences, University of Manchester, UK.
J Enzyme Inhib. 1992;6(3):251-8. doi: 10.3109/14756369209020175.
Lung tumour cells possess a cell surface protease which can be inhibited by a cytoplasmic protein inhibitor extracted from these cells. The dissociation of this enzyme-inhibitor complex on the surface of tumour cells in sections treated with 10(-4) M sodium dodecyl sulphate has been studied. The dissociation of the inhibitor and regain of enzymic activity was followed by the use of a fluorescent probe which binds to the active centre of the cell surface enzyme in a competitive manner.
肺肿瘤细胞具有一种细胞表面蛋白酶,这种蛋白酶可被从这些细胞中提取的一种细胞质蛋白抑制剂所抑制。已经研究了用10⁻⁴ M十二烷基硫酸钠处理的切片中肿瘤细胞表面这种酶 - 抑制剂复合物的解离情况。通过使用一种荧光探针来跟踪抑制剂的解离和酶活性的恢复,该荧光探针以竞争方式与细胞表面酶的活性中心结合。