| Chain | GOid | namespace | contents |
| 2m | 0000104 | molecular_function | succinate dehydrogenase activity |
| 2m | 0005743 | cellular_component | mitochondrial inner membrane |
| 2m | 0006099 | biological_process | tricarboxylic acid cycle |
| 2m | 0006121 | biological_process | mitochondrial electron transport, succinate to ubiquinone |
| 2m | 0008177 | molecular_function | succinate dehydrogenase (quinone) activity |
| 2m | 0009055 | molecular_function | electron transfer activity |
| 2m | 0016020 | cellular_component | membrane |
| 2m | 0016491 | molecular_function | oxidoreductase activity |
| 2m | 0016627 | molecular_function | oxidoreductase activity, acting on the CH-CH group of donors |
| 2m | 0022900 | biological_process | electron transport chain |
| 2m | 0050660 | molecular_function | flavin adenine dinucleotide binding |
| 2m | 0160308 | molecular_function | succinate dehydrogenase (FAD) activity |
| 2M | 0000104 | molecular_function | succinate dehydrogenase activity |
| 2M | 0005743 | cellular_component | mitochondrial inner membrane |
| 2M | 0006099 | biological_process | tricarboxylic acid cycle |
| 2M | 0006121 | biological_process | mitochondrial electron transport, succinate to ubiquinone |
| 2M | 0008177 | molecular_function | succinate dehydrogenase (quinone) activity |
| 2M | 0009055 | molecular_function | electron transfer activity |
| 2M | 0016020 | cellular_component | membrane |
| 2M | 0016491 | molecular_function | oxidoreductase activity |
| 2M | 0016627 | molecular_function | oxidoreductase activity, acting on the CH-CH group of donors |
| 2M | 0022900 | biological_process | electron transport chain |
| 2M | 0050660 | molecular_function | flavin adenine dinucleotide binding |
| 2M | 0160308 | molecular_function | succinate dehydrogenase (FAD) activity |
| 2n | 0005743 | cellular_component | mitochondrial inner membrane |
| 2n | 0006099 | biological_process | tricarboxylic acid cycle |
| 2n | 0008177 | molecular_function | succinate dehydrogenase (quinone) activity |
| 2n | 0009055 | molecular_function | electron transfer activity |
| 2n | 0009060 | biological_process | aerobic respiration |
| 2n | 0016491 | molecular_function | oxidoreductase activity |
| 2n | 0022904 | biological_process | respiratory electron transport chain |
| 2n | 0051536 | molecular_function | iron-sulfur cluster binding |
| 2n | 0051537 | molecular_function | 2 iron, 2 sulfur cluster binding |
| 2N | 0005743 | cellular_component | mitochondrial inner membrane |
| 2N | 0006099 | biological_process | tricarboxylic acid cycle |
| 2N | 0008177 | molecular_function | succinate dehydrogenase (quinone) activity |
| 2N | 0009055 | molecular_function | electron transfer activity |
| 2N | 0009060 | biological_process | aerobic respiration |
| 2N | 0016491 | molecular_function | oxidoreductase activity |
| 2N | 0022904 | biological_process | respiratory electron transport chain |
| 2N | 0051536 | molecular_function | iron-sulfur cluster binding |
| 2N | 0051537 | molecular_function | 2 iron, 2 sulfur cluster binding |
| 3a | 0005739 | cellular_component | mitochondrion |
| 3a | 0046872 | molecular_function | metal ion binding |
| 3A | 0005739 | cellular_component | mitochondrion |
| 3A | 0046872 | molecular_function | metal ion binding |
| 3b | 0005739 | cellular_component | mitochondrion |
| 3b | 0046872 | molecular_function | metal ion binding |
| 3B | 0005739 | cellular_component | mitochondrion |
| 3B | 0046872 | molecular_function | metal ion binding |
| 3c | 0009055 | molecular_function | electron transfer activity |
| 3c | 0020037 | molecular_function | heme binding |
| 3C | 0009055 | molecular_function | electron transfer activity |
| 3C | 0020037 | molecular_function | heme binding |
| 3e | 0006122 | biological_process | mitochondrial electron transport, ubiquinol to cytochrome c |
| 3e | 0045275 | cellular_component | respiratory chain complex III |
| 3E | 0006122 | biological_process | mitochondrial electron transport, ubiquinol to cytochrome c |
| 3E | 0045275 | cellular_component | respiratory chain complex III |
| 3g | 0005743 | cellular_component | mitochondrial inner membrane |
| 3g | 0006122 | biological_process | mitochondrial electron transport, ubiquinol to cytochrome c |
| 3g | 0008121 | molecular_function | quinol-cytochrome-c reductase activity |
| 3g | 0009055 | molecular_function | electron transfer activity |
| 3g | 0016020 | cellular_component | membrane |
| 3g | 0016491 | molecular_function | oxidoreductase activity |
| 3g | 0022900 | biological_process | electron transport chain |
| 3g | 0022904 | biological_process | respiratory electron transport chain |
| 3g | 0046872 | molecular_function | metal ion binding |
| 3g | 1902600 | biological_process | proton transmembrane transport |
| 3G | 0005743 | cellular_component | mitochondrial inner membrane |
| 3G | 0006122 | biological_process | mitochondrial electron transport, ubiquinol to cytochrome c |
| 3G | 0008121 | molecular_function | quinol-cytochrome-c reductase activity |
| 3G | 0009055 | molecular_function | electron transfer activity |
| 3G | 0016020 | cellular_component | membrane |
| 3G | 0016491 | molecular_function | oxidoreductase activity |
| 3G | 0022900 | biological_process | electron transport chain |
| 3G | 0022904 | biological_process | respiratory electron transport chain |
| 3G | 0046872 | molecular_function | metal ion binding |
| 3G | 1902600 | biological_process | proton transmembrane transport |
| 3h | 0008121 | molecular_function | quinol-cytochrome-c reductase activity |
| 3h | 0016020 | cellular_component | membrane |
| 3h | 0051537 | molecular_function | 2 iron, 2 sulfur cluster binding |
| 3h | 1902600 | biological_process | proton transmembrane transport |
| 3H | 0008121 | molecular_function | quinol-cytochrome-c reductase activity |
| 3H | 0016020 | cellular_component | membrane |
| 3H | 0051537 | molecular_function | 2 iron, 2 sulfur cluster binding |
| 3H | 1902600 | biological_process | proton transmembrane transport |
| 3i | 0006122 | biological_process | mitochondrial electron transport, ubiquinol to cytochrome c |
| 3i | 0045275 | cellular_component | respiratory chain complex III |
| 3I | 0006122 | biological_process | mitochondrial electron transport, ubiquinol to cytochrome c |
| 3I | 0045275 | cellular_component | respiratory chain complex III |
| 3j | 0005743 | cellular_component | mitochondrial inner membrane |
| 3j | 0006122 | biological_process | mitochondrial electron transport, ubiquinol to cytochrome c |
| 3j | 0016020 | cellular_component | membrane |
| 3J | 0005743 | cellular_component | mitochondrial inner membrane |
| 3J | 0006122 | biological_process | mitochondrial electron transport, ubiquinol to cytochrome c |
| 3J | 0016020 | cellular_component | membrane |
| 40 | 0004129 | molecular_function | cytochrome-c oxidase activity |
| 40 | 0009055 | molecular_function | electron transfer activity |
| 40 | 0016020 | cellular_component | membrane |
| 41 | 0004129 | molecular_function | cytochrome-c oxidase activity |
| 41 | 0009055 | molecular_function | electron transfer activity |
| 41 | 0016020 | cellular_component | membrane |
| 4a | 0005739 | cellular_component | mitochondrion |
| 4A | 0005739 | cellular_component | mitochondrion |
| 4n | 0004129 | molecular_function | cytochrome-c oxidase activity |
| 4n | 0005507 | molecular_function | copper ion binding |
| 4n | 0016020 | cellular_component | membrane |
| 4N | 0004129 | molecular_function | cytochrome-c oxidase activity |
| 4N | 0005507 | molecular_function | copper ion binding |
| 4N | 0016020 | cellular_component | membrane |
| 4p | 0004129 | molecular_function | cytochrome-c oxidase activity |
| 4p | 0005507 | molecular_function | copper ion binding |
| 4p | 0016020 | cellular_component | membrane |
| 4P | 0004129 | molecular_function | cytochrome-c oxidase activity |
| 4P | 0005507 | molecular_function | copper ion binding |
| 4P | 0016020 | cellular_component | membrane |
| 4q | 0004129 | molecular_function | cytochrome-c oxidase activity |
| 4q | 0005743 | cellular_component | mitochondrial inner membrane |
| 4q | 0006119 | biological_process | oxidative phosphorylation |
| 4q | 0006123 | biological_process | mitochondrial electron transport, cytochrome c to oxygen |
| 4q | 0009060 | biological_process | aerobic respiration |
| 4q | 0015990 | biological_process | electron transport coupled proton transport |
| 4q | 0016020 | cellular_component | membrane |
| 4q | 0020037 | molecular_function | heme binding |
| 4q | 0022904 | biological_process | respiratory electron transport chain |
| 4Q | 0004129 | molecular_function | cytochrome-c oxidase activity |
| 4Q | 0005743 | cellular_component | mitochondrial inner membrane |
| 4Q | 0006119 | biological_process | oxidative phosphorylation |
| 4Q | 0006123 | biological_process | mitochondrial electron transport, cytochrome c to oxygen |
| 4Q | 0009060 | biological_process | aerobic respiration |
| 4Q | 0015990 | biological_process | electron transport coupled proton transport |
| 4Q | 0016020 | cellular_component | membrane |
| 4Q | 0020037 | molecular_function | heme binding |
| 4Q | 0022904 | biological_process | respiratory electron transport chain |
| 4v | 0005739 | cellular_component | mitochondrion |
| 4v | 0006123 | biological_process | mitochondrial electron transport, cytochrome c to oxygen |
| 4v | 0045277 | cellular_component | respiratory chain complex IV |
| 4V | 0005739 | cellular_component | mitochondrion |
| 4V | 0006123 | biological_process | mitochondrial electron transport, cytochrome c to oxygen |
| 4V | 0045277 | cellular_component | respiratory chain complex IV |
| 4x | 0005740 | cellular_component | mitochondrial envelope |
| 4x | 0006123 | biological_process | mitochondrial electron transport, cytochrome c to oxygen |
| 4x | 0045277 | cellular_component | respiratory chain complex IV |
| 4X | 0005740 | cellular_component | mitochondrial envelope |
| 4X | 0006123 | biological_process | mitochondrial electron transport, cytochrome c to oxygen |
| 4X | 0045277 | cellular_component | respiratory chain complex IV |