Functional Information from GO Data
| Chain | GOid | namespace | contents |
| B | 0005886 | cellular_component | plasma membrane |
| B | 0006955 | biological_process | immune response |
| B | 0007165 | biological_process | signal transduction |
| B | 0007166 | biological_process | cell surface receptor signaling pathway |
| B | 0009897 | cellular_component | external side of plasma membrane |
| B | 0016020 | cellular_component | membrane |
| B | 0019863 | molecular_function | IgE binding |
| B | 0032998 | cellular_component | Fc-epsilon receptor I complex |
| B | 0045121 | cellular_component | membrane raft |
Functional Information from PROSITE/UniProt
| site_id | PS00290 |
| Number of Residues | 7 |
| Details | IG_MHC Immunoglobulins and major histocompatibility complex proteins signature. YQCIVDH |
| Chain | Residue | Details |
| E | TYR283-HIS289 | |
| E | PHE390-HIS396 | |
Functional Information from SwissProt/UniProt
| site_id | SWS_FT_FI1 |
| Number of Residues | 105 |
| Details | TOPO_DOM: Cytoplasmic => ECO:0000255 |
| Chain | Residue | Details |
| B | MET1-GLU51 | |
| B | SER110-SER122 | |
| B | ILE192-SER235 | |
| site_id | SWS_FT_FI2 |
| Number of Residues | 76 |
| Details | TRANSMEM: Helical => ECO:0000255 |
| Chain | Residue | Details |
| B | PHE52-VAL71 | |
| B | LEU90-ILE109 | |
| B | LEU123-LEU142 | |
| B | LEU172-THR191 | |
| site_id | SWS_FT_FI3 |
| Number of Residues | 45 |
| Details | TOPO_DOM: Extracellular => ECO:0000255 |
| Chain | Residue | Details |
| B | CYS72-LYS89 | |
| B | ASN143-GLU171 | |
| Chain | Residue | Details |
| B | TYR210 | |
| B | TYR216 | |
| B | TYR220 | |
| H | TYR76 | |
| A | ASN152 | |
| A | ASN167 | |
| Chain | Residue | Details |
| B | SER217 | |
| H | THR78 | |
