| IPR036179 | Immunoglobulin-like domain superfamily | Homologous Superfamily | 
  | IPR050208 | Antigen-presenting and immune regulatory MHC class I-related | Family | 
  | IPR037055 | MHC class I-like antigen recognition-like superfamily | Homologous Superfamily | 
  | IPR003597 | Immunoglobulin C1-set | Domain | 
  | IPR010579 | MHC class I, alpha chain, C-terminal | Domain | 
  | IPR013783 | Immunoglobulin-like fold | Homologous Superfamily | 
  | IPR011161 | MHC class I-like antigen recognition-like | Domain | 
  | IPR011162 | MHC classes I/II-like antigen recognition protein | Homologous Superfamily | 
  | IPR007110 | Immunoglobulin-like domain | Domain | 
  | IPR001039 | MHC class I alpha chain, alpha1 alpha2 domains | Domain | 
  | IPR003006 | Immunoglobulin/major histocompatibility complex, conserved site | Conserved Site | 
  | IPR044873 | Spike glycoprotein S2, coronavirus, heptad repeat 1 | Domain | 
  | IPR044366 | Spike (S) protein S1 subunit, receptor-binding domain, SARS-CoV-2 | Domain | 
  | IPR018548 | Spike (S) protein S1 subunit, receptor-binding domain, betacoronavirus | Domain | 
  | IPR044341 | Spike (S) protein S1 subunit, N-terminal domain, SARS-CoV-like | 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 | 
  | IPR044874 | Spike glycoprotein S2, coronavirus, heptad repeat 2 | Domain | 
  | IPR043473 | Spike glycoprotein S2 superfamily, coronavirus | Homologous Superfamily | 
  | IPR043607 | Coronavirus spike glycoprotein S1, C-terminal | Domain | 
  | IPR002552 | Spike glycoprotein S2, coronavirus | Domain | 
  | IPR036179 | Immunoglobulin-like domain superfamily | Homologous Superfamily | 
  | IPR003006 | Immunoglobulin/major histocompatibility complex, conserved site | Conserved Site | 
  | IPR013783 | Immunoglobulin-like fold | Homologous Superfamily | 
  | IPR007110 | Immunoglobulin-like domain | Domain | 
  | IPR050160 | Major Histocompatibility Complex/Immunoglobulin | Family | 
  | IPR003597 | Immunoglobulin C1-set | Domain | 
  | IPR015707 | Beta-2-Microglobulin | Family |