title: N4-methylcytosine as a minor base in bacterial DNA.
abstract: The DNA base composition, including the minor base content, of 26 strains of bacteria was determined. The studied bacteria are sources of widely used restriction endonucleases. Approximately 35% of the bacterial DNAs contained N4-methylcytosine, about 60% contained 5-methylcytosine, and about 90% had N6-methyladenine.
mesh_terms: D001419:Bacteria / Q000032:analysis*; D003596:Cytosine / Q000031:analogs & derivatives* / Q000032:analysis; D004262:DNA Restriction Enzymes; D004269:DNA, Bacterial / Q000302:isolation & purification; D013045:Species Specificity
chemical_list: D004269:DNA, Bacterial; C039052:N(4)-methylcytosine; D003596:Cytosine; D004262:DNA Restriction Enzymes