The activation rate of Glu-PG by H-UK is two times that by L-UK,but in theactivation of Lys-PG,both H-UK and L-UK showed almost equal rates. The activa-tion rate of Lys-PG by UK is 8-fold that of Glu-PG.

• 两种尿激酶对PG的激活速度是,H-UK激活Glu-PG比L-UK大一倍,但激活Lys-PG的速度颇为接近,比激活Glu-PG的速度大8倍之多。