| Chain | GOid | namespace | contents |
| a | 0015948 | biological_process | methanogenesis |
| a | 0016491 | molecular_function | oxidoreductase activity |
| a | 0046872 | molecular_function | metal ion binding |
| a | 0051536 | molecular_function | iron-sulfur cluster binding |
| a | 0051539 | molecular_function | 4 iron, 4 sulfur cluster binding |
| a | 0051912 | molecular_function | CoB--CoM heterodisulfide reductase activity |
| A | 0015948 | biological_process | methanogenesis |
| A | 0016491 | molecular_function | oxidoreductase activity |
| A | 0046872 | molecular_function | metal ion binding |
| A | 0051536 | molecular_function | iron-sulfur cluster binding |
| A | 0051539 | molecular_function | 4 iron, 4 sulfur cluster binding |
| A | 0051912 | molecular_function | CoB--CoM heterodisulfide reductase activity |
| b | 0015948 | biological_process | methanogenesis |
| b | 0016020 | cellular_component | membrane |
| b | 0016491 | molecular_function | oxidoreductase activity |
| b | 0051912 | molecular_function | CoB--CoM heterodisulfide reductase activity |
| B | 0015948 | biological_process | methanogenesis |
| B | 0016020 | cellular_component | membrane |
| B | 0016491 | molecular_function | oxidoreductase activity |
| B | 0051912 | molecular_function | CoB--CoM heterodisulfide reductase activity |
| c | 0005886 | cellular_component | plasma membrane |
| c | 0015948 | biological_process | methanogenesis |
| c | 0016491 | molecular_function | oxidoreductase activity |
| c | 0046872 | molecular_function | metal ion binding |
| c | 0051536 | molecular_function | iron-sulfur cluster binding |
| c | 0051539 | molecular_function | 4 iron, 4 sulfur cluster binding |
| c | 0051912 | molecular_function | CoB--CoM heterodisulfide reductase activity |
| C | 0005886 | cellular_component | plasma membrane |
| C | 0015948 | biological_process | methanogenesis |
| C | 0016491 | molecular_function | oxidoreductase activity |
| C | 0046872 | molecular_function | metal ion binding |
| C | 0051536 | molecular_function | iron-sulfur cluster binding |
| C | 0051539 | molecular_function | 4 iron, 4 sulfur cluster binding |
| C | 0051912 | molecular_function | CoB--CoM heterodisulfide reductase activity |