Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0016539 | biological_process | intein-mediated protein splicing |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 4 |
| Details | binding site for residue MG A 301 |
| Chain | Residue |
| A | ILE94 |
| A | ASP95 |
| A | ILE97 |
| A | VAL169 |
| site_id | AC2 |
| Number of Residues | 6 |
| Details | binding site for chain B of ALA-MET-ARG-TYR |
| Chain | Residue |
| A | HOH401 |
| A | VAL64 |
| A | ASN74 |
| A | THR199 |
| A | GLU200 |
| A | ALA201 |
Functional Information from SwissProt/UniProt
| Chain | Residue | Details |
| B | TYR65 | |
Catalytic Information from CSA
| site_id | MCSA1 |
| Number of Residues | |
| Details | M-CSA 744 |
| Chain | Residue | Details |
| A | ALA1 | nucleophile, proton acceptor, proton donor |
| A | THR72 | electrostatic stabiliser |
| A | ASN74 | electrostatic stabiliser |
| A | HIS75 | electrostatic stabiliser, proton donor |
| A | HIS197 | electrostatic stabiliser, proton donor |
| A | ASN198 | nucleophile, proton donor |
