. "US" . "J.Biol.Chem." . "JBCHA3" . "0071" . "0021-9258" . "263" . "17872" . "17879" . . "Methylation of the EcoRI recognition site does not alter DNA conformation: the crystal structure of d(CGCGAm6ATTCGCG) at 2.0-A resolution." . . . . . . .