obsolete respirasome https://github.com/geneontology/go-ontology/issues/12846 https://github.com/geneontology/go-ontology/issues/27253 true OBSOLETE. The protein complexes that form the electron transport system (the respiratory chain), associated with a cell membrane, usually the plasma membrane (in prokaryotes) or the inner mitochondrial membrane (on eukaryotes). The respiratory chain complexes transfer electrons from an electron donor to an electron acceptor and are associated with a proton pump to create a transmembrane electrochemical gradient. GO:0070469 cellular_component The reason for obsoletion is that this term is equivalent to respiratory chain complex. membrane electron transport chain respiratory chain respiratory chain complex