亚油酸和阳离子对源自人胎盘的新型高分子量蛋白酶英根辛活性的影响。

Effects of linoleic acid and cations on the activity of a novel high-molecular weight protease, ingensin, from human placenta.

作者信息

Ishiura S, Nojima M, Yamamoto T, Fuchiwaki T, Okuyama T, Furuya H, Sugita H

出版信息

Int J Biochem. 1986;18(9):765-9. doi: 10.1016/0020-711x(86)90051-0.

Abstract

A linoleic acid-sensitive protease, ingensin, was purified to homogeneity from human placenta. The physical properties of the placental ingensin were found to be very similar to those of skeletal muscle ingensin [Ishiura et al. (1985) FEBS Lett. 189, 119-123]. The purified ingensin was activated by linoleic acid and SDS. The linoleic acid-activated form was inhibited preferentially by divalent cations, whereas the SDS-activated form was inhibited by monovalent cations instead.

摘要

一种对亚油酸敏感的蛋白酶——孕蛋白酶，从人胎盘中纯化至同质。发现胎盘孕蛋白酶的物理性质与骨骼肌孕蛋白酶非常相似[石浦等人（1985年），《欧洲生物化学学会联合会快报》189，119 - 123]。纯化的孕蛋白酶可被亚油酸和十二烷基硫酸钠激活。亚油酸激活的形式优先被二价阳离子抑制，而十二烷基硫酸钠激活的形式则被单价阳离子抑制。