Most enzyme assays monitor disappearance of a product . 大多数酶的测量法是检测其底物的减少或产物的出现。
2.
There was not obviously objective protein band has been seen on sds - page . the enzyme assay showed a light activity of a - gal . the result showed that the a - gal gene was not well expression in this expression system A gald gs 15讲行j十发阶规发附表达，对发酵产’物进行了s巳aoe丁匕泳，得到一条约为40kd的条带，确认了ra刁a卜d得到了表达；并对产物进行酶活性检测，证明了ra gal d只有酶活性。
