presynaptic endocytic zone membrane obsolete intrinsic component of presynaptic endocytic zone membrane https://github.com/geneontology/go-ontology/issues/23424 true cellular_component intrinsic to presynaptic active zone membrane GO:0098946 OBSOLETE. The component of the presynaptic 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. This term was obsoleted because it represents protein topology, not a cellular component.