| Chain | GOid | namespace | contents |
| A | 0016491 | molecular_function | oxidoreductase activity |
| A | 0033765 | molecular_function | steroid dehydrogenase activity, acting on the CH-CH group of donors |
| B | 0005886 | cellular_component | plasma membrane |
| B | 0006099 | biological_process | tricarboxylic acid cycle |
| B | 0009055 | molecular_function | electron transfer activity |
| B | 0009060 | biological_process | aerobic respiration |
| B | 0016491 | molecular_function | oxidoreductase activity |
| B | 0022904 | biological_process | respiratory electron transport chain |
| B | 0046872 | molecular_function | metal ion binding |
| B | 0051536 | molecular_function | iron-sulfur cluster binding |
| B | 0051537 | molecular_function | 2 iron, 2 sulfur cluster binding |
| B | 0051539 | molecular_function | 4 iron, 4 sulfur cluster binding |