Functional Information from GO Data
| Chain | GOid | namespace | contents | 
| A | 0003677 | molecular_function | DNA binding | 
| A | 0004519 | molecular_function | endonuclease activity | 
| A | 0016539 | biological_process | intein-mediated protein splicing | 
| A | 0030908 | biological_process | protein splicing | 
| B | 0003677 | molecular_function | DNA binding | 
| B | 0004519 | molecular_function | endonuclease activity | 
| B | 0016539 | biological_process | intein-mediated protein splicing | 
| B | 0030908 | biological_process | protein splicing | 
Functional Information from PROSITE/UniProt
| site_id | PS00290 | 
| Number of Residues | 7 | 
| Details | IG_MHC Immunoglobulins and major histocompatibility complex proteins signature. FTCNATH | 
| Chain | Residue | Details | 
| A | PHE73-HIS79 |  | 
Catalytic Information from CSA
| site_id | CSA1 | 
| Number of Residues | 1 | 
| Details | Annotated By Reference To The Literature 1lws | 
| Chain | Residue | Details | 
| A | LYS403 |  | 
| site_id | CSA2 | 
| Number of Residues | 1 | 
| Details | Annotated By Reference To The Literature 1lws | 
| Chain | Residue | Details | 
| B | LYS403 |  | 
| site_id | MCSA1 | 
| Number of Residues | 9 | 
| Details | M-CSA 508 | 
| Chain | Residue | Details | 
| A | CYS1 | covalent catalysis | 
| A | ASN76 | electrostatic stabiliser | 
| A | THR78 | electrostatic stabiliser | 
| A | HIS79 | proton shuttle (general acid/base) | 
| A | LYS301 | proton shuttle (general acid/base) | 
| A | LYS403 | proton shuttle (general acid/base) | 
| A | GLY433 | electrostatic stabiliser | 
| A | ILE434 | activator | 
| A | ASN454 | covalent catalysis | 
| site_id | MCSA2 | 
| Number of Residues | 9 | 
| Details | M-CSA 508 | 
| Chain | Residue | Details | 
| B | CYS1 | covalent catalysis | 
| B | ASN76 | electrostatic stabiliser | 
| B | THR78 | electrostatic stabiliser | 
| B | HIS79 | proton shuttle (general acid/base) | 
| B | LYS301 | proton shuttle (general acid/base) | 
| B | LYS403 | proton shuttle (general acid/base) | 
| B | GLY433 | electrostatic stabiliser | 
| B | ILE434 | activator | 
| B | ASN454 | covalent catalysis |