from the pulse-chase studies , and the cellular phosphocholine concentrations , it was possible to estimate the rate of phosphatidylcholine biosynthesis ( 2.2 , 2.8 , 3.1 and 3.7 nmol/min per g wet weight of cells cultured in 1 , 5 , 10 and 40 microm-choline respectively for up to 4.25 h ) .
C0031716
phosphocholine
C0008405
choline