(center map)
(1) SDHA@mitochondrial inner membrane+FAD@mitochondrial inner membrane - SDHAF2@mitochondrial matrix -> FAD:SDHA@mitochondrial inner membrane
(2) FAD:SDHA@mitochondrial inner membrane+SDHB@mitochondrial inner membrane+SDHC@mitochondrial inner membrane+SDHD@mitochondrial inner membrane - SDHAF1@mitochondrial inner membrane -> FAD:SDHA:SDHB:SDHC:SDHD:cardiolipin:heme b:phosphatidylethanolamine@mitochondrial inner membrane