contractile vacuolar membrane obsolete integral component of contractile vacuolar membrane https://github.com/geneontology/go-ontology/issues/23424 true OBSOLETE. The component of the contractile vacuolar membrane consisting of gene products that have some part that penetrates at least one leaflet of the membrane bilayer. This component includes gene products that are buried in the bilayer with no exposure outside the bilayer. cellular_component integral to contractile vacuolar membrane GO:0031165 This term was obsoleted because it represents protein topology, not a cellular component.