these results lead us to conclude that two distinctly different steps precede rapid hydrolysis of dipalmitoylphosphatidylcholine small unilamellar vesicles by pancreatic phospholipase a2 : a ca2+-independent binding of the enzyme to the substrate vesicles , which for chemically pure bilayers occurs best in the gel phase .
C0020291
hydrolysis
C1418617
pancreatic phospholipase a2