| Chain | GOid | namespace | contents |
| A | 0006508 | biological_process | proteolysis |
| A | 0008237 | molecular_function | metallopeptidase activity |
| A | 0008241 | molecular_function | peptidyl-dipeptidase activity |
| A | 0016020 | cellular_component | membrane |
| B | 0016020 | cellular_component | membrane |
| B | 0019031 | cellular_component | viral envelope |
| B | 0019062 | biological_process | virion attachment to host cell |
| B | 0019064 | biological_process | fusion of virus membrane with host plasma membrane |
| B | 0020002 | cellular_component | host cell plasma membrane |
| B | 0039654 | biological_process | fusion of virus membrane with host endosome membrane |
| B | 0044173 | cellular_component | host cell endoplasmic reticulum-Golgi intermediate compartment membrane |
| B | 0046718 | biological_process | symbiont entry into host cell |
| B | 0046813 | biological_process | receptor-mediated virion attachment to host cell |
| B | 0055036 | cellular_component | virion membrane |
| B | 0075509 | biological_process | endocytosis involved in viral entry into host cell |
