Functional Information from GO Data
| Chain | GOid | namespace | contents |
| B | 0004252 | molecular_function | serine-type endopeptidase activity |
| B | 0006508 | biological_process | proteolysis |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 10 |
| Details | BINDING SITE FOR RESIDUE ESI B 251 |
| Chain | Residue |
| B | CIT3 |
| B | HOH405 |
| B | ASP189 |
| B | ALA190 |
| B | GLN192 |
| B | SER195 |
| B | TRP215 |
| B | GLY216 |
| B | GLY219 |
| B | GLY226 |
| site_id | AC2 |
| Number of Residues | 9 |
| Details | BINDING SITE FOR RESIDUE CIT B 1 |
| Chain | Residue |
| B | CIT2 |
| B | TYR67 |
| B | LYS82 |
| B | SER164 |
| B | HIS165 |
| B | ARG166 |
| B | HOH264 |
| B | HOH350 |
| B | HOH443 |
| site_id | AC3 |
| Number of Residues | 8 |
| Details | BINDING SITE FOR RESIDUE CIT B 2 |
| Chain | Residue |
| B | CIT1 |
| B | ARG36 |
| B | LYS82 |
| B | LYS110 |
| B | HIS165 |
| B | ARG166 |
| B | ARG230 |
| B | HOH415 |
| site_id | AC4 |
| Number of Residues | 11 |
| Details | BINDING SITE FOR RESIDUE CIT B 3 |
| Chain | Residue |
| B | HIS57 |
| B | GLN185 |
| B | GLN192 |
| B | GLY193 |
| B | SER195 |
| B | ESI251 |
| B | HOH354 |
| B | HOH407 |
| B | HOH464 |
| B | HOH465 |
| B | HOH466 |
Functional Information from PROSITE/UniProt
| site_id | PS00134 |
| Number of Residues | 6 |
| Details | TRYPSIN_HIS Serine proteases, trypsin family, histidine active site. ISATHC |
| Chain | Residue | Details |
| B | ILE53-CYS58 | |
| site_id | PS00135 |
| Number of Residues | 12 |
| Details | TRYPSIN_SER Serine proteases, trypsin family, serine active site. DAcqGDSGGPLV |
| Chain | Residue | Details |
| B | ASP189-VAL200 | |
Functional Information from SwissProt/UniProt
| site_id | SWS_FT_FI1 |
| Number of Residues | 3 |
| Details | ACT_SITE: Charge relay system |
| Chain | Residue | Details |
| B | HIS57 | |
| B | ASP102 | |
| B | SER195 | |
| Chain | Residue | Details |
| B | SER146 | |
| site_id | SWS_FT_FI3 |
| Number of Residues | 1 |
| Details | CARBOHYD: N-linked (GlcNAc...) asparagine |
| Chain | Residue | Details |
| B | ALA145 | |
