TY - GEN AU - Hattman,S AU - Gold,E AU - Plotnik,A TI - Methylation of cytosine residues in DNA controlled by a drug resistance factor (host-induced modification-R factors-N 6 -methyladenine-5-methylcytosine) SN - 0027-8424 PY - 1972///0404 KW - Adenine KW - analysis KW - Carbon Isotopes KW - Culture Media KW - Cytosine KW - DNA, Viral KW - Drug Resistance, Microbial KW - Escherichia coli KW - metabolism KW - Methylation KW - Mutation KW - Phenotype KW - Salmonella Phages KW - Salmonella typhimurium KW - Species Specificity KW - Tritium N1 - Publication Type: Journal Article UR - https://doi.org/10.1073/pnas.69.1.187 ER -