Assertion: codon's base | /r/HasProperty | modified by methylation
Facets:
value: chemically
type: MANNER
Source sentences:
text: Bases that have been modified, especially by methylation (e.g. tRNA (guanine-N7-)-methyltransferase), occur in several positions throughout the tRNA.
text: Segments of DNA where the bases have been chemically modified by methylation may undergo a larger change in conformation and adopt the Z form.