Functional Information from GO Data
| Chain | GOid | namespace | contents |
| C | 0002474 | biological_process | antigen processing and presentation of peptide antigen via MHC class I |
| C | 0002503 | biological_process | peptide antigen assembly with MHC class II protein complex |
| C | 0005576 | cellular_component | extracellular region |
| C | 0005765 | cellular_component | lysosomal membrane |
| C | 0006955 | biological_process | immune response |
| C | 0019886 | biological_process | antigen processing and presentation of exogenous peptide antigen via MHC class II |
| C | 0023026 | molecular_function | MHC class II protein complex binding |
| C | 0031902 | cellular_component | late endosome membrane |
| C | 0042605 | molecular_function | peptide antigen binding |
| C | 0042612 | cellular_component | MHC class I protein complex |
| C | 0042613 | cellular_component | MHC class II protein complex |
| C | 0050778 | biological_process | positive regulation of immune response |
| C | 0050870 | biological_process | positive regulation of T cell activation |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 3 |
| Details | BINDING SITE FOR RESIDUE SO4 A 301 |
| Chain | Residue |
| A | ARG59 |
| A | LYS81 |
| A | HOH402 |
| site_id | AC2 |
| Number of Residues | 3 |
| Details | BINDING SITE FOR RESIDUE SO4 A 302 |
| Chain | Residue |
| A | PRO7 |
| A | THR8 |
| A | GLU9 |
| site_id | AC3 |
| Number of Residues | 3 |
| Details | BINDING SITE FOR RESIDUE SO4 B 301 |
| Chain | Residue |
| B | VAL166 |
| B | HIS167 |
| B | SER168 |
| site_id | AC4 |
| Number of Residues | 5 |
| Details | BINDING SITE FOR RESIDUE SO4 C 401 |
| Chain | Residue |
| B | GLY163 |
| B | HIS207 |
| B | ARG209 |
| C | LYS297 |
| C | ARG299 |
| site_id | AC5 |
| Number of Residues | 2 |
| Details | BINDING SITE FOR RESIDUE SO4 C 402 |
Functional Information from PROSITE/UniProt
| site_id | PS00290 |
| Number of Residues | 7 |
| Details | IG_MHC Immunoglobulins and major histocompatibility complex proteins signature. YSCRVKH |
| Chain | Residue | Details |
| C | TYR77-HIS83 | |
| C | TYR368-HIS374 | |
Functional Information from SwissProt/UniProt
| Chain | Residue | Details |
| C | ARG123 | |
| C | SER138 | |
| C | ARG208 | |
| C | TYR266 | |
| C | GLN267 | |
| Chain | Residue | Details |
| C | KFP157 | |
| site_id | SWS_FT_FI3 |
| Number of Residues | 1 |
| Details | CARBOHYD: N-linked (GlcNAc...) asparagine => ECO:0000305 |
| Chain | Residue | Details |
| C | ASN199 | |
