| Chain | GOid | namespace | contents |
| A | 0000287 | molecular_function | magnesium ion binding |
| A | 0003824 | molecular_function | catalytic activity |
| A | 0004477 | molecular_function | methenyltetrahydrofolate cyclohydrolase activity |
| A | 0004487 | molecular_function | methylenetetrahydrofolate dehydrogenase (NAD+) activity |
| A | 0004488 | molecular_function | methylenetetrahydrofolate dehydrogenase (NADP+) activity |
| A | 0005515 | molecular_function | protein binding |
| A | 0005615 | cellular_component | extracellular space |
| A | 0005739 | cellular_component | mitochondrion |
| A | 0005759 | cellular_component | mitochondrial matrix |
| A | 0006730 | biological_process | one-carbon metabolic process |
| A | 0016491 | molecular_function | oxidoreductase activity |
| A | 0016787 | molecular_function | hydrolase activity |
| A | 0035999 | biological_process | tetrahydrofolate interconversion |
| A | 0042301 | molecular_function | phosphate ion binding |
| A | 0046653 | biological_process | tetrahydrofolate metabolic process |
| A | 0046655 | biological_process | folic acid metabolic process |
| B | 0000287 | molecular_function | magnesium ion binding |
| B | 0003824 | molecular_function | catalytic activity |
| B | 0004477 | molecular_function | methenyltetrahydrofolate cyclohydrolase activity |
| B | 0004487 | molecular_function | methylenetetrahydrofolate dehydrogenase (NAD+) activity |
| B | 0004488 | molecular_function | methylenetetrahydrofolate dehydrogenase (NADP+) activity |
| B | 0005515 | molecular_function | protein binding |
| B | 0005615 | cellular_component | extracellular space |
| B | 0005739 | cellular_component | mitochondrion |
| B | 0005759 | cellular_component | mitochondrial matrix |
| B | 0006730 | biological_process | one-carbon metabolic process |
| B | 0016491 | molecular_function | oxidoreductase activity |
| B | 0016787 | molecular_function | hydrolase activity |
| B | 0035999 | biological_process | tetrahydrofolate interconversion |
| B | 0042301 | molecular_function | phosphate ion binding |
| B | 0046653 | biological_process | tetrahydrofolate metabolic process |
| B | 0046655 | biological_process | folic acid metabolic process |
