| P28068 | n/a | 2bc4 | CL | A | 503 | e2bc4B2 | MHC antigen-recognition domain | MHC antigen-recognition domain | MHC antigen-recognition domain | MHC_II_beta |
| P28068 | n/a | 2bc4 | CL | B | 501 | e2bc4B1 | Immunoglobulin-like beta-sandwich | Immunoglobulin-related | Immunoglobulin/Fibronectin type III/E set domains/PapD-like | C1-set |
| P28068 | n/a | 2bc4 | CL | C | 504 | e2bc4D2 | MHC antigen-recognition domain | MHC antigen-recognition domain | MHC antigen-recognition domain | MHC_II_beta |
| P28068 | n/a | 2bc4 | CL | D | 502 | e2bc4D1 | Immunoglobulin-like beta-sandwich | Immunoglobulin-related | Immunoglobulin/Fibronectin type III/E set domains/PapD-like | C1-set |