Prère M F, Fayet O
Ann Inst Pasteur Microbiol (1985). 1985 May-Jun;136A(3):329-38. doi: 10.1016/s0769-2609(85)80095-8.
We compared the susceptibility of Escherichia coli and Neisseria gonorrhoeae DNA to cleavage by KpnI and found that KpnI has a lower affinity for gonococcal DNA. Site-specific methylation is suggested as the cause of this altered affinity.