| IPR006833 | Ammonia monooxygenase/particulate methane monooxygenase, subunit B | Family |
| IPR023141 | Ammonia/methane monooxygenase, subunit B, hairpin domain superfamily | Homologous Superfamily |
| IPR023303 | Ammonia/methane monooxygenase, subunit B, C-terminal | Homologous Superfamily |
| IPR023301 | Ammonia/methane monooxygenase, subunitB, N-terminal | Homologous Superfamily |
| IPR006980 | Ammonia monooxygenase/particulate methane monooxygenase, subunit C | Family |
| IPR023349 | Ammonia monooxygenase/particulate methane monooxygenase, subunit C domain superfamily | Homologous Superfamily |
| IPR037001 | Ammonia/particulate methane monooxygenase, subunit A superfamily | Homologous Superfamily |
| IPR003393 | Ammonia monooxygenase/particulate methane monooxygenase, subunit A | Family |