Mechanism of the interaction of EcoRII restriction endonuclease with two recognition sites. Probing of modified DNA duplexes as activators of the enzyme.


The efficiency of cleavage of DNA duplexes with single EcoRII recognition sites by the EcoRII restriction endonuclease decreases with increasing substrate length. DNA duplexes of more than 215 bp are not effectively cleaved by this enzyme. Acceleration of the hydrolysis of long single-site substrates by EcoRII is observed in the presence of 11-14-bp… (More)


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