in lipid vesicles , prepared from a variety of phosphatidylcholines ( pcs ) , including egg pc , dopc , dmpc , dppc and dspc , the ability of the lipids to stimulate the enzyme decreased in the order egg pc greater than dopc greater than dmpc greater than dppc greater than dspc , i.e . the lower the transition temperature ( tc ) the greater the stimulation of the enzyme .
C1959616
phosphatidylcholines
C0012456
dmpc