taken together with the previous results which demonstrated that fc receptors which had apparently lost the activity due to delipidation could be reconstituted with phosphatidylcholine but not with most other phospholipids , the results seem to indicate that the diminution of the binding activity to the immune complex of macrophage or its plasma membrane caused by phospholipase c treatment is due to the impairment of multivalent interaction between fc receptor molecules on the membrane and igg2 molecules in the immune complex , probably as a result of the loss of interaction of the head groups of phospholipids with fc receptor molecules and the change in membrane properties resulting from the increase of diglycerides .
C0007603
plasma membrane
C0034805
fc receptor