. "\"OBSOLETE: The fraction of cells, prepared by disruptive biochemical methods, that is enriched for plasma membranes.\" [GOC:mgi_curators, PMID:11562363, PMID:15601832]" . . "plasma membrane enriched fraction" . "This term was made obsolete because it refers to a cell fractionation experimental result and not a bona fide cellular component." . "obsolete" . "PME fraction" .