postsynaptic endocytic zone membrane obsolete intrinsic component of postsynaptic endocytic zone membrane true intrinsic to postsynaptic active zone membrane This term was obsoleted because it represents protein topology, not a cellular component. OBSOLETE. The component of the postsynaptic endocytic zone membrane consisting of the gene products and protein complexes having either part of their peptide sequence embedded in the hydrophobic region of the membrane or some other covalently attached group such as a GPI anchor that is similarly embedded in the membrane. cellular_component GO:0098947