Assertion: adenosine | /r/CapableOf | activate exchange proteins
Facets:
value: directly
type: MANNER
Source sentences:
text: Adenosine , -cyclic monophosphate (cAMP) is an ubiquitous second messenger which directly activates protein kinase A (PKA) and EPACs (exchange proteins directly activated by cAMP) and opens cyclic nucleotide-gated channels .