| Chain | GOid | namespace | contents |
| A | 0005506 | molecular_function | iron ion binding |
| A | 0005737 | cellular_component | cytoplasm |
| A | 0006547 | biological_process | L-histidine metabolic process |
| A | 0006548 | biological_process | L-histidine catabolic process |
| A | 0008270 | molecular_function | zinc ion binding |
| A | 0016787 | molecular_function | hydrolase activity |
| A | 0016810 | molecular_function | hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds |
| A | 0016812 | molecular_function | hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in cyclic amides |
| A | 0019556 | biological_process | L-histidine catabolic process to glutamate and formamide |
| A | 0019557 | biological_process | L-histidine catabolic process to glutamate and formate |
| A | 0046872 | molecular_function | metal ion binding |
| A | 0050480 | molecular_function | imidazolonepropionase activity |
| B | 0005506 | molecular_function | iron ion binding |
| B | 0005737 | cellular_component | cytoplasm |
| B | 0006547 | biological_process | L-histidine metabolic process |
| B | 0006548 | biological_process | L-histidine catabolic process |
| B | 0008270 | molecular_function | zinc ion binding |
| B | 0016787 | molecular_function | hydrolase activity |
| B | 0016810 | molecular_function | hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds |
| B | 0016812 | molecular_function | hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in cyclic amides |
| B | 0019556 | biological_process | L-histidine catabolic process to glutamate and formamide |
| B | 0019557 | biological_process | L-histidine catabolic process to glutamate and formate |
| B | 0046872 | molecular_function | metal ion binding |
| B | 0050480 | molecular_function | imidazolonepropionase activity |
