Functional Information from GO Data
| Chain | GOid | namespace | contents | 
| A | 0004252 | molecular_function | serine-type endopeptidase activity | 
| A | 0006508 | biological_process | proteolysis | 
Functional Information from PDB Data
| site_id | AC1 | 
| Number of Residues | 11 | 
| Details | BINDING SITE FOR RESIDUE SO4 A 246 | 
| Chain | Residue | 
| A | ALA15 | 
| A | HOH398 | 
| A | HOH407 | 
| A | ASN15 | 
| A | ARG230 | 
| A | PRO233 | 
| A | HOH309 | 
| A | HOH334 | 
| A | HOH339 | 
| A | HOH374 | 
| A | HOH379 | 
| site_id | AC2 | 
| Number of Residues | 7 | 
| Details | BINDING SITE FOR RESIDUE SO4 B 208 | 
| Chain | Residue | 
| A | ALA169 | 
| A | ASN170 | 
| B | MSU199 | 
| B | ALA200 | 
| B | HOH409 | 
| B | HOH602 | 
| B | HOH711 | 
| site_id | AC3 | 
| Number of Residues | 6 | 
| Details | BINDING SITE FOR RESIDUE SO4 A 247 | 
| Chain | Residue | 
| A | ARG90 | 
| A | HOH318 | 
| A | HOH372 | 
| A | HOH377 | 
| A | HOH480 | 
| A | HOH603 | 
| site_id | AC4 | 
| Number of Residues | 15 | 
| Details | BINDING SITE FOR RESIDUE SO4 A 248 | 
| Chain | Residue | 
| A | LEU41 | 
| A | THR125 | 
| A | ARG141 | 
| A | SO4249 | 
| A | HOH324 | 
| A | HOH357 | 
| A | HOH566 | 
| A | HOH593 | 
| A | HOH616 | 
| A | HOH617 | 
| A | HOH623 | 
| A | HOH640 | 
| A | HOH649 | 
| A | HOH705 | 
| A | HOH719 | 
| site_id | AC5 | 
| Number of Residues | 14 | 
| Details | BINDING SITE FOR RESIDUE SO4 A 249 | 
| Chain | Residue | 
| A | SER120 | 
| A | GLY123 | 
| A | SER124 | 
| A | THR125 | 
| A | ARG192 | 
| A | SO4248 | 
| A | HOH332 | 
| A | HOH343 | 
| A | HOH357 | 
| A | HOH578 | 
| A | HOH616 | 
| A | HOH625 | 
| A | HOH641 | 
| A | HOH649 | 
| site_id | AC6 | 
| Number of Residues | 7 | 
| Details | BINDING SITE FOR RESIDUE SO4 A 250 | 
| Chain | Residue | 
| A | THR168 | 
| A | ARG178 | 
| A | HOH415 | 
| A | HOH513 | 
| A | HOH646 | 
| A | HOH650 | 
| A | HOH706 | 
| site_id | AC7 | 
| Number of Residues | 13 | 
| Details | BINDING SITE FOR RESIDUE SO4 A 251 | 
| Chain | Residue | 
| A | ALA48 | 
| A | THR49 | 
| A | SER110 | 
| A | ALA176 | 
| A | ARG178 | 
| A | HOH323 | 
| A | HOH344 | 
| A | HOH361 | 
| A | HOH463 | 
| A | HOH599 | 
| A | HOH613 | 
| A | HOH658 | 
| A | HOH707 | 
| site_id | AC8 | 
| Number of Residues | 8 | 
| Details | BINDING SITE FOR RESIDUE SO4 A 252 | 
| Chain | Residue | 
| A | ALA131 | 
| A | VAL132 | 
| A | LYS165 | 
| A | HOH472 | 
| A | HOH533 | 
| A | HOH591 | 
| A | HOH609 | 
| A | HOH670 | 
| site_id | AC9 | 
| Number of Residues | 16 | 
| Details | BINDING SITE FOR RESIDUE GOL B 204 | 
| Chain | Residue | 
| A | LEU41 | 
| A | CYS42 | 
| A | HIS57 | 
| A | GLY193 | 
| A | SER195 | 
| A | GLN208 | 
| A | HOH393 | 
| A | HOH520 | 
| A | HOH582 | 
| A | HOH642 | 
| B | PRO202 | 
| B | B2V203 | 
| B | HOH378 | 
| B | HOH519 | 
| B | HOH589 | 
| B | HOH654 | 
| site_id | BC1 | 
| Number of Residues | 29 | 
| Details | BINDING SITE FOR CHAIN B OF MEOSUC-ALA-ALA-PRO-ALA BORONIC ACID INHIBITOR | 
| Chain | Residue | 
| A | TYR171 | 
| A | GLY191 | 
| A | GLY193 | 
| A | ASP194 | 
| A | SER195 | 
| A | MET213 | 
| A | SER214 | 
| A | GLY215 | 
| A | GLY216 | 
| A | ASN217 | 
| A | VAL218 | 
| A | GLN219 | 
| A | GLY245 | 
| A | HOH382 | 
| A | HOH572 | 
| A | HOH585 | 
| A | HOH587 | 
| A | HOH642 | 
| A | HOH688 | 
| A | HOH715 | 
| A | HOH730 | 
| B | GOL204 | 
| B | SO4208 | 
| B | HOH483 | 
| B | HOH654 | 
| B | HOH695 | 
| B | HOH711 | 
| A | HIS57 | 
| A | ARG122 | 
Functional Information from PROSITE/UniProt
| site_id | PS00134 | 
| Number of Residues | 6 | 
| Details | TRYPSIN_HIS Serine proteases, trypsin family, histidine active site. VTAGHC | 
| Chain | Residue | Details | 
| A | VAL53-CYS58 |  | 
| site_id | PS00135 | 
| Number of Residues | 12 | 
| Details | TRYPSIN_SER Serine proteases, trypsin family, serine active site. CMgrGDSGGSWI | 
| Chain | Residue | Details | 
| A | CYS189-ILE200 |  | 
Functional Information from SwissProt/UniProt
| site_id | SWS_FT_FI1 | 
| Number of Residues | 3 | 
| Details | Active site: {"description":"Charge relay system","evidences":[{"evidenceCode":"ECO:0000250"}]} | 
Catalytic Information from CSA
| site_id | CSA1 | 
| Number of Residues | 5 | 
| Details | Annotated By Reference To The Literature 1ssx | 
| Chain | Residue | Details | 
| A | ASP102 |  | 
| A | SER195 |  | 
| A | GLY193 |  | 
| A | HIS57 |  | 
| A | SER214 |  | 
| site_id | CSA2 | 
| Number of Residues | 4 | 
| Details | Annotated By Reference To The Literature 1ssx | 
| Chain | Residue | Details | 
| A | ASP102 |  | 
| A | SER195 |  | 
| A | GLY193 |  | 
| A | HIS57 |  | 
| site_id | MCSA1 | 
| Number of Residues | 5 | 
| Details | M-CSA 609 | 
| Chain | Residue | Details | 
| A | HIS57 | proton acceptor, proton donor | 
| A | ASP102 | electrostatic stabiliser | 
| A | GLY193 | electrostatic stabiliser | 
| A | SER195 | electrostatic stabiliser | 
| A | SER214 | electrostatic stabiliser |