Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0004252 | molecular_function | serine-type endopeptidase activity |
| A | 0005509 | molecular_function | calcium ion binding |
| A | 0005576 | cellular_component | extracellular region |
| A | 0006508 | biological_process | proteolysis |
| A | 0007596 | biological_process | blood coagulation |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 14 |
| Details | BINDING SITE FOR RESIDUE 177 A 401 |
| Chain | Residue |
| A | HIS57 |
| A | GLY219 |
| A | PHE227 |
| A | HOH822 |
| A | HOH905 |
| A | HOH912 |
| A | TYR60 |
| A | GLU146 |
| A | ALA190 |
| A | SER195 |
| A | VAL213 |
| A | SER214 |
| A | TRP215 |
| A | GLY216 |
| site_id | AC2 |
| Number of Residues | 16 |
| Details | BINDING SITE FOR CHAIN B OF HIRUDIN |
| Chain | Residue |
| A | PHE34 |
| A | LYS36 |
| A | GLN38 |
| A | LEU65 |
| A | ARG67 |
| A | ARG73 |
| A | THR74 |
| A | ARG75 |
| A | ARG75 |
| A | TYR76 |
| A | LYS81 |
| A | ILE82 |
| A | MET84 |
| A | SER153 |
| A | HOH639 |
| B | HOH762 |
Functional Information from PROSITE/UniProt
| site_id | PS00134 |
| Number of Residues | 6 |
| Details | TRYPSIN_HIS Serine proteases, trypsin family, histidine active site. LTAAHC |
| Chain | Residue | Details |
| A | LEU53-CYS58 | |
| site_id | PS00135 |
| Number of Residues | 12 |
| Details | TRYPSIN_SER Serine proteases, trypsin family, serine active site. DAceGDSGGPFV |
| Chain | Residue | Details |
| A | ASP189-VAL200 | |
Functional Information from SwissProt/UniProt
| site_id | SWS_FT_FI1 |
| Number of Residues | 1 |
| Details | MOD_RES: Sulfotyrosine => ECO:0000250 |
| Chain | Residue | Details |
| B | TYS363 | |
| A | ASP102 | |
| A | SER195 | |
| Chain | Residue | Details |
| A | ARG14 | |
| Chain | Residue | Details |
| A | ASN60 | |
Catalytic Information from CSA
| site_id | CSA1 |
| Number of Residues | 2 |
| Details | Annotated By Reference To The Literature 1a0j |
| Chain | Residue | Details |
| A | ASP102 | |
| A | HIS57 | |
| site_id | CSA2 |
| Number of Residues | 2 |
| Details | Annotated By Reference To The Literature 1a0j |
| Chain | Residue | Details |
| A | SER195 | |
| A | GLY196 | |
| site_id | CSA3 |
| Number of Residues | 2 |
| Details | Annotated By Reference To The Literature 1a0j |
| Chain | Residue | Details |
| A | SER195 | |
| A | GLY193 | |
| site_id | CSA4 |
| Number of Residues | 4 |
| Details | Annotated By Reference To The Literature 1a0j |
| Chain | Residue | Details |
| A | ASP102 | |
| A | SER195 | |
| A | GLY193 | |
| A | HIS57 | |
| site_id | CSA5 |
| Number of Residues | 3 |
| Details | Annotated By Reference To The Literature 1a0j |
| Chain | Residue | Details |
| A | ASP102 | |
| A | SER195 | |
| A | HIS57 | |
| site_id | CSA6 |
| Number of Residues | 4 |
| Details | Annotated By Reference To The Literature 1a0j |
| Chain | Residue | Details |
| A | ASP102 | |
| A | SER195 | |
| A | HIS57 | |
| A | GLY196 | |
