Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0004867 | molecular_function | serine-type endopeptidase inhibitor activity |
| B | 0004867 | molecular_function | serine-type endopeptidase inhibitor activity |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 6 |
| Details | binding site for residue SO4 A 101 |
| Chain | Residue |
| A | ARG20 |
| A | TYR35 |
| A | HOH235 |
| A | HOH260 |
| B | ARG42 |
| B | HOH4177 |
| site_id | AC2 |
| Number of Residues | 10 |
| Details | binding site for residue SO4 B 4001 |
| Chain | Residue |
| A | ARG53 |
| A | HOH201 |
| A | HOH240 |
| B | ARG39 |
| B | HOH4105 |
| B | HOH4110 |
| B | HOH4114 |
| A | PHE4 |
| A | GLU7 |
| A | ARG42 |
| site_id | AC3 |
| Number of Residues | 9 |
| Details | binding site for residue SO4 B 4002 |
| Chain | Residue |
| B | ARG20 |
| B | TYR35 |
| B | GLY37 |
| B | ALA40 |
| B | HOH4117 |
| B | HOH4133 |
| B | HOH4135 |
| B | HOH4137 |
| B | HOH4152 |
Functional Information from SwissProt/UniProt
| site_id | SWS_FT_FI1 |
| Number of Residues | 2 |
| Details | SITE: Reactive bond for trypsin |
| Chain | Residue | Details |
| A | LYS15 | |
| B | LYS15 | |
