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 | 8 |
| Details | BINDING SITE FOR RESIDUE PO4 B 1 |
| Chain | Residue |
| B | CYS42 |
| B | HIS57 |
| B | GLN192 |
| B | GLY193 |
| B | SER195 |
| B | ARG243 |
| B | BEN245 |
| B | HOH297 |
| site_id | AC2 |
| Number of Residues | 9 |
| Details | BINDING SITE FOR RESIDUE BEN B 245 |
| Chain | Residue |
| B | ASP189 |
| B | ALA190 |
| B | GLN192 |
| B | SER195 |
| B | TRP215 |
| B | GLY219 |
| B | GLY226 |
| B | HOH261 |
| B | PO41 |
Functional Information from PROSITE/UniProt
| site_id | PS00134 |
| Number of Residues | 6 |
| Details | TRYPSIN_HIS Serine proteases, trypsin family, histidine active site. LSAAHC |
| Chain | Residue | Details |
| B | LEU53-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
| Chain | Residue | Details |
| B | HIS57 | |
| B | ASP102 | |
| B | SER195 | |
| site_id | SWS_FT_FI2 |
| Number of Residues | 2 |
| Details | SITE: Important for single-chain activity |
| Chain | Residue | Details |
| B | LYS156 | |
| B | ASP194 | |
| Chain | Residue | Details |
| B | ASN173 | |
Catalytic Information from CSA
| site_id | CSA1 |
| Number of Residues | 5 |
| Details | a catalytic site defined by CSA, PubMed 8613982 |
| Chain | Residue | Details |
| B | ASP102 | |
| B | SER195 | |
| B | SER195 | |
| B | GLY193 | |
| B | HIS57 | |
| site_id | MCSA1 |
| Number of Residues | 4 |
| Details | M-CSA 798 |
| Chain | Residue | Details |
| B | HIS57 | proton acceptor, proton donor |
| B | ASP102 | electrostatic stabiliser |
| B | GLY193 | electrostatic stabiliser |
| B | SER195 | electrostatic stabiliser |
