Assertion: purine | /r/HasProperty | synthesized as nucleotide derivatives
Facets:
value: by assembling the atoms
type: MANNER
value: directly
type: MANNER
Source sentences:
text: The de novo synthesis of purines occurs in an interesting manner: The atoms forming the purine ring are successively added to ribose-5-phosphate; thus, purines are directly synthesized as nucleotide derivatives by assembling the atoms that comprise the purine ring system directly on the ribose.