mitochondrial inner membrane obsolete intrinsic component of mitochondrial inner membrane https://github.com/geneontology/go-ontology/issues/23424 true GO:0031304 This term was obsoleted because it represents protein topology, not a cellular component. cellular_component intrinsic to mitochondrial inner membrane OBSOLETE. The component of the mitochondrial inner 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.