extracts of human lymphoblastoid cells catalyzed complete release of uracil ( ura ) from pbs1 dna , which contains ura instead of thymine as a normal component ( ura-dna ) , and 3-methyladenine ( 3-meade ) from dna methylated with methyl methanesulfonate ( me-dna ) .
C0040087
thymine
C0041917
ura