| Chain | GOid | namespace | contents |
| A | 0000096 | biological_process | sulfur amino acid metabolic process |
| A | 0005515 | molecular_function | protein binding |
| A | 0005737 | cellular_component | cytoplasm |
| A | 0005829 | cellular_component | cytosol |
| A | 0007399 | biological_process | nervous system development |
| A | 0008168 | molecular_function | methyltransferase activity |
| A | 0008652 | biological_process | amino acid biosynthetic process |
| A | 0008705 | molecular_function | methionine synthase activity |
| A | 0009086 | biological_process | methionine biosynthetic process |
| A | 0009235 | biological_process | cobalamin metabolic process |
| A | 0016740 | molecular_function | transferase activity |
| A | 0031103 | biological_process | axon regeneration |
| A | 0031419 | molecular_function | cobalamin binding |
| A | 0032259 | biological_process | methylation |
| A | 0046653 | biological_process | tetrahydrofolate metabolic process |
| A | 0046872 | molecular_function | metal ion binding |
| A | 0048678 | biological_process | response to axon injury |
| A | 0050667 | biological_process | homocysteine metabolic process |
| A | 0071267 | biological_process | L-methionine salvage |
| A | 0071732 | biological_process | cellular response to nitric oxide |