Assertion: cytosine | /r/HasProperty | methylated
Facets:
value: originally
type: MANNER
Source sentences:
text: The deamination of cytosine to uracil is blocked by methylation ; therefore, when analyzing PCR product sequences from bisulfite-treated samples, we infer that any cytosines that are not changed to thymine must have been methylated originally.
text: Cytosines in bold are methylated.