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 B 59 |
| Chain | Residue |
| A | ASN2 |
| A | TYR49 |
| B | ARG42 |
| B | HOH121 |
| B | HOH253 |
| B | HOH279 |
| site_id | AC2 |
| Number of Residues | 5 |
| Details | BINDING SITE FOR RESIDUE SO4 B 60 |
| Chain | Residue |
| B | HOH217 |
| B | HOH254 |
| B | LYS15 |
| B | ALA16 |
| B | ARG17 |
| site_id | AC3 |
| Number of Residues | 3 |
| Details | BINDING SITE FOR RESIDUE SO4 B 61 |
| Chain | Residue |
| B | ARG20 |
| B | TYR35 |
| B | ALA40 |
Functional Information from PROSITE/UniProt
| site_id | PS00280 |
| Number of Residues | 19 |
| Details | BPTI_KUNITZ_1 Pancreatic trypsin inhibitor (Kunitz) family signature. FvyGGCrakrnnFksaedC |
| Chain | Residue | Details |
| B | PHE33-CYS51 | |
Functional Information from SwissProt/UniProt
| site_id | SWS_FT_FI1 |
| Number of Residues | 1 |
| Details | SITE: Reactive bond for trypsin |
| Chain | Residue | Details |
| B | LYS15 | |
