the effect of acetylcholine , 3,4-dihydroxyphenylethylamine , prostaglandin ( pge1 ) , guanosine triphosphate ( gtp ) , and divalent ions on adenylate cyclase activity in homogenates of `` '' '' '' differentiated '' '' and malignant mouse neuroblastoma cells was studied .
C0033554
prostaglandin
C0002335
pge1