| Chain | GOid | namespace | contents |
| A | 0009236 | biological_process | cobalamin biosynthetic process |
| A | 0016853 | molecular_function | isomerase activity |
| A | 0016993 | molecular_function | precorrin-8X methylmutase activity |
| B | 0009236 | biological_process | cobalamin biosynthetic process |
| B | 0016853 | molecular_function | isomerase activity |
| B | 0016993 | molecular_function | precorrin-8X methylmutase activity |
| C | 0009236 | biological_process | cobalamin biosynthetic process |
| C | 0016853 | molecular_function | isomerase activity |
| C | 0016993 | molecular_function | precorrin-8X methylmutase activity |
| D | 0009236 | biological_process | cobalamin biosynthetic process |
| D | 0016853 | molecular_function | isomerase activity |
| D | 0016993 | molecular_function | precorrin-8X methylmutase activity |