also , the host enzyme had a significant preference for denatured or nicked , normal cytosine-containing dna ( e.g. , x. oryzae or t7 dna ) over similarly denatured or nicked 5-methylcytosine-rich dna ( namely , xp-12dna ) , whereas the phage-induced enzyme hydrolyzed both types of dna equally well .
C0010843
cytosine
C0049308
5-methylcytosine