Specificity study of CT showed that dCTP was a better substrate for CT than CTP; but dCDP or CDP showed some inhibitory effect on CT activity.

• 用CT常规底物CTP的类似物观察CT的特异性,发现dCTP是比CTP更好的底物,CDP、dCDP能抑制CT对CTP或dCTP的作用,而CMP、dCMP对酶活性无影响。