Functional Information from GO Data
| Chain | GOid | namespace | contents |
| E | 0004252 | molecular_function | serine-type endopeptidase activity |
| E | 0006508 | biological_process | proteolysis |
| I | 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 CA E 500 |
| Chain | Residue |
| E | GLU70 |
| E | ASN72 |
| E | VAL75 |
| E | GLU77 |
| E | GLU80 |
| E | HOH524 |
| site_id | AC2 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE SO4 I 990 |
| Chain | Residue |
| I | HOH661 |
| I | GLU7 |
| I | ARG42 |
| I | HOH538 |
| site_id | AC3 |
| Number of Residues | 5 |
| Details | BINDING SITE FOR RESIDUE SO4 I 991 |
| Chain | Residue |
| E | GLN239 |
| I | ARG20 |
| I | TYR35 |
| I | HOH611 |
| I | HOH717 |
| site_id | AC4 |
| Number of Residues | 2 |
| Details | BINDING SITE FOR RESIDUE SO4 I 992 |
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 |
| I | PHE33-CYS51 | |
| site_id | PS00134 |
| Number of Residues | 6 |
| Details | TRYPSIN_HIS Serine proteases, trypsin family, histidine active site. VSAAHC |
| Chain | Residue | Details |
| E | VAL53-CYS58 | |
| site_id | PS00135 |
| Number of Residues | 12 |
| Details | TRYPSIN_SER Serine proteases, trypsin family, serine active site. DScqGDSGGPVV |
| Chain | Residue | Details |
| E | ASP189-VAL200 | |
Functional Information from SwissProt/UniProt
| site_id | SWS_FT_FI1 |
| Number of Residues | 1 |
| Details | SITE: Reactive bond for trypsin |
| Chain | Residue | Details |
| I | LYS15 | |
| E | MET104 | |
| E | GLY197 | |
| site_id | SWS_FT_FI2 |
| Number of Residues | 4 |
| Details | BINDING: |
| Chain | Residue | Details |
| E | ASN72 | |
| E | ASN74 | |
| E | GLU77 | |
| E | PHE82 | |
| site_id | SWS_FT_FI3 |
| Number of Residues | 1 |
| Details | SITE: Required for specificity => ECO:0000250 |
| Chain | Residue | Details |
| E | CYS191 | |
