carbachol ( cch ) a cholinergic agonist which hydrolyses phosphatidyl-inositol bisphosphate ( pip2 ) to produce the breakdown products inositol trisphosphate ( ip3 ) and diacylglycerol ( dag ) was tested for its ability to induce [ 3h ] norepinephrine ( [ 3h ] ne ) release and to accumulate [ 3h ] inositol phosphate ( [ 3h ] ip ) under normal and membrane depolarizing conditions .
C0021549
ip3
C0021554
inositol phosphate