Friedberg, E C Endonuclease II of E. coli. I. Isolation and purification. [electronic resource] - Proceedings of the National Academy of Sciences of the United States of America Mar 1969 - 934-40 p. digital Publication Type: Journal Article ISSN: 0027-8424 Standard No.: 10.1073/pnas.62.3.934 doi Subjects--Topical Terms: AlkylationChromatography, Ion ExchangeChromatography, Thin LayerDNA, BacterialDeoxyribonucleases--isolation & purificationElectrophoresis, DiscEscherichia coli--enzymologyMethods