Assertion: ribose's effect | /r/HasProperty | absent
Facets:
value: in another substitution
type: TEMPORAL
Source sentences:
text: Although it is possible that the negative effect of an Ala-substitution is absent in another substitution, this suggests that great caution has to be taken when targeting residues that are critical for ligand binding (D89, R141, D215) or protein stability and transport (N190).