| IPR018548 | Spike (S) protein S1 subunit, receptor-binding domain, betacoronavirus | Domain |
| IPR032500 | Spike glycoprotein S1, N-terminal domain, betacoronavirus-like | Domain |
| IPR042578 | Spike glycoprotein, betacoronavirus | Family |
| IPR036326 | Spike S1 subunit, receptor binding domain superfamily, betacoronavirus | Homologous Superfamily |
| IPR043002 | Spike glycoprotein, N-terminal domain superfamily | Homologous Superfamily |
| IPR044339 | Spike (S) protein S1 subunit, N-terminal domain, murine hepatitis virus-like | Domain |
| IPR044874 | Spike glycoprotein S2, coronavirus, heptad repeat 2 | Domain |
| IPR044375 | Spike (S) protein S1 subunit, receptor-binding domain, HKU1-like | Domain |
| IPR043614 | Spike glycoprotein S2, coronavirus, C-terminal | Domain |
| IPR044873 | Spike glycoprotein S2, coronavirus, heptad repeat 1 | Domain |
| IPR043473 | Spike glycoprotein S2 superfamily, coronavirus | Homologous Superfamily |
| IPR043607 | Coronavirus spike glycoprotein S1, C-terminal | Domain |
| IPR002552 | Spike glycoprotein S2, coronavirus | Domain |
| IPR017448 | SRCR-like domain | Domain |
| IPR002172 | Low-density lipoprotein (LDL) receptor class A repeat | Repeat |
| IPR009003 | Peptidase S1, PA clan | Homologous Superfamily |
| IPR001190 | SRCR domain | Domain |
| IPR001314 | Peptidase S1A, chymotrypsin family | Family |
| IPR033116 | Serine proteases, trypsin family, serine active site | Active Site |
| IPR036772 | SRCR-like domain superfamily | Homologous Superfamily |
| IPR001254 | Serine proteases, trypsin domain | Domain |
| IPR023415 | Low-density lipoprotein (LDL) receptor class A, conserved site | Conserved Site |
| IPR036055 | LDL receptor-like superfamily | Homologous Superfamily |
| IPR043504 | Peptidase S1, PA clan, chymotrypsin-like fold | Homologous Superfamily |
| IPR018114 | Serine proteases, trypsin family, histidine active site | Active Site |