N4-methylcytosine as a minor base in bacterial DNA.
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.
D001419:Bacteria / Q000032:analysis*; D003596:Cytosine / Q000031:analogs & derivatives* / Q000032:analysis; D004262:DNA Restriction Enzymes; D004269:DNA, Bacterial / Q000302:isolation & purification; D013045:Species Specificity
D004269:DNA, Bacterial; C039052:N(4)-methylcytosine; D003596:Cytosine; D004262:DNA Restriction Enzymes