Assertion: ligand's receptor | /r/HasProperty | class
Facets:
value: based on their mechanism
type: CAUSE
Source sentences:
text: In general, eukaryotic cells sense the presence of chemotactic stimuli through the use of 7-transmembrane (or serpentine) heterotrimeric G-protein-coupled receptors, a class representing a significant portion of the genome.
text: Receptors may be classed based on their mechanism or on their position in the cell.