2.7.1.66 lipoprotein - 641766 2.7.1.66 lipoprotein absolute requirement for a phospholipid cofactor, mixture of phosphatidylglycerol and cardiolipin, either of which is effective alone in restoring the activity of the enzyme 641757 2.7.1.66 lipoprotein absolute requirement for phospholipid and for detergent 641763 2.7.1.66 lipoprotein lipid requirement of the enzyme is nonelectrostatic in nature 641763 2.7.1.66 lipoprotein overview: activation by commercial phospholipids and glycolipids, lipids providing a hydrated, loosely packed, highly fluid environment are often effective activators 641764 2.7.1.66 lipoprotein phospholipid cofactor required 641758 2.7.1.66 lipoprotein reactivation of apoprotein by synthetic lecithins 641762 2.7.1.66 lipoprotein requirements for endogenous and exogenous phospholipids. Enzyme requires a fluid lipid surface for activity, lysophosphatidylglycerol and ditetradecanoylphosphatidylcholine are the best activators 641760