| Chain | GOid | namespace | contents |
| A | 0004656 | molecular_function | procollagen-proline 4-dioxygenase activity |
| A | 0005506 | molecular_function | iron ion binding |
| A | 0016705 | molecular_function | oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen |
| A | 0016706 | molecular_function | 2-oxoglutarate-dependent dioxygenase activity |
| A | 0031418 | molecular_function | L-ascorbic acid binding |
| B | 0004656 | molecular_function | procollagen-proline 4-dioxygenase activity |
| B | 0005506 | molecular_function | iron ion binding |
| B | 0016705 | molecular_function | oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen |
| B | 0016706 | molecular_function | 2-oxoglutarate-dependent dioxygenase activity |
| B | 0031418 | molecular_function | L-ascorbic acid binding |