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EcoRI(“I”是罗马数字“1”)是一种核酸酶,来自某些特定品系的大肠杆菌(E. coli,也是其名称由来),是此种细菌体内参与限制修饰系统的酵素。
在分子生物学或其他分子层次的生物学研究上,EcoRI是一种常用的限制酶,可将特定序列的DNA切割成片段,切割后的小片段端点为5'端突出的黏状末端。
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