3T62
Crystal structure of recombinant Kunitz Type serine protease Inhibitor-1 from the Caribbean Sea anemone Stichodactyla helianthus in complex with bovine chymotrypsin
Functional Information from GO Data
Chain | GOid | namespace | contents |
A | 0004252 | molecular_function | serine-type endopeptidase activity |
A | 0005515 | molecular_function | protein binding |
A | 0005576 | cellular_component | extracellular region |
A | 0006508 | biological_process | proteolysis |
A | 0007586 | biological_process | digestion |
A | 0008236 | molecular_function | serine-type peptidase activity |
A | 0097180 | cellular_component | serine protease inhibitor complex |
A | 0097655 | molecular_function | serpin family protein binding |
B | 0004252 | molecular_function | serine-type endopeptidase activity |
B | 0005515 | molecular_function | protein binding |
B | 0005576 | cellular_component | extracellular region |
B | 0006508 | biological_process | proteolysis |
B | 0007586 | biological_process | digestion |
B | 0008236 | molecular_function | serine-type peptidase activity |
B | 0097180 | cellular_component | serine protease inhibitor complex |
B | 0097655 | molecular_function | serpin family protein binding |
C | 0004252 | molecular_function | serine-type endopeptidase activity |
C | 0005515 | molecular_function | protein binding |
C | 0005576 | cellular_component | extracellular region |
C | 0006508 | biological_process | proteolysis |
C | 0007586 | biological_process | digestion |
C | 0008236 | molecular_function | serine-type peptidase activity |
C | 0097180 | cellular_component | serine protease inhibitor complex |
C | 0097655 | molecular_function | serpin family protein binding |
D | 0004867 | molecular_function | serine-type endopeptidase inhibitor activity |
D | 0005576 | cellular_component | extracellular region |
D | 0019828 | molecular_function | aspartic-type endopeptidase inhibitor activity |
D | 0042151 | cellular_component | nematocyst |
E | 0004867 | molecular_function | serine-type endopeptidase inhibitor activity |
E | 0005576 | cellular_component | extracellular region |
E | 0019828 | molecular_function | aspartic-type endopeptidase inhibitor activity |
E | 0042151 | cellular_component | nematocyst |
F | 0004867 | molecular_function | serine-type endopeptidase inhibitor activity |
F | 0005576 | cellular_component | extracellular region |
F | 0019828 | molecular_function | aspartic-type endopeptidase inhibitor activity |
F | 0042151 | cellular_component | nematocyst |
Functional Information from PDB Data
site_id | AC1 |
Number of Residues | 4 |
Details | BINDING SITE FOR RESIDUE SO4 A 246 |
Chain | Residue |
A | TRP172 |
A | SER217 |
A | SER218 |
D | ARG13 |
site_id | AC2 |
Number of Residues | 3 |
Details | BINDING SITE FOR RESIDUE SO4 A 247 |
Chain | Residue |
A | LYS93 |
A | HOH439 |
A | HOH490 |
site_id | AC3 |
Number of Residues | 8 |
Details | BINDING SITE FOR RESIDUE SO4 B 246 |
Chain | Residue |
B | ASN100 |
B | LYS177 |
B | HOH283 |
B | HOH291 |
B | HOH303 |
B | HOH343 |
A | LYS177 |
B | THR98 |
site_id | AC4 |
Number of Residues | 4 |
Details | BINDING SITE FOR RESIDUE SO4 B 247 |
Chain | Residue |
B | TRP172 |
B | SER218 |
B | HOH338 |
E | ARG13 |
site_id | AC5 |
Number of Residues | 6 |
Details | BINDING SITE FOR RESIDUE SO4 E 57 |
Chain | Residue |
B | SER221 |
B | THR222 |
B | HOH399 |
E | THR47 |
E | HIS49 |
E | GLN50 |
site_id | AC6 |
Number of Residues | 4 |
Details | BINDING SITE FOR RESIDUE SO4 E 58 |
Chain | Residue |
B | SER218 |
E | VAL11 |
E | GLY12 |
E | HOH420 |
site_id | AC7 |
Number of Residues | 2 |
Details | BINDING SITE FOR RESIDUE SO4 E 59 |
Chain | Residue |
B | LYS175 |
E | ARG13 |
Functional Information from PROSITE/UniProt
site_id | PS00134 |
Number of Residues | 6 |
Details | TRYPSIN_HIS Serine proteases, trypsin family, histidine active site. VTAAHC |
Chain | Residue | Details |
A | VAL53-CYS58 |
site_id | PS00135 |
Number of Residues | 12 |
Details | TRYPSIN_SER Serine proteases, trypsin family, serine active site. SScmGDSGGPLV |
Chain | Residue | Details |
A | SER189-VAL200 |
site_id | PS00280 |
Number of Residues | 19 |
Details | BPTI_KUNITZ_1 Pancreatic trypsin inhibitor (Kunitz) family signature. FiyGGCggngnnFetlhqC |
Chain | Residue | Details |
D | PHE33-CYS51 |
Functional Information from SwissProt/UniProt
site_id | SWS_FT_FI1 |
Number of Residues | 3 |
Details | SITE: Reactive bond for trypsin => ECO:0000269|PubMed:22975140 |
Chain | Residue | Details |
D | LYS15 | |
E | LYS15 | |
F | LYS15 | |
B | HIS57 | |
B | ASP102 | |
B | SER195 | |
C | HIS57 | |
C | ASP102 | |
C | SER195 |
Catalytic Information from CSA
site_id | MCSA1 |
Number of Residues | 5 |
Details | M-CSA 387 |
Chain | Residue | Details |
A | HIS57 | electrostatic stabiliser, proton shuttle (general acid/base) |
A | ASP102 | modifies pKa |
A | GLY193 | electrostatic stabiliser |
A | SER195 | covalent catalysis |
A | GLY196 | electrostatic stabiliser |
site_id | MCSA2 |
Number of Residues | 5 |
Details | M-CSA 387 |
Chain | Residue | Details |
B | HIS57 | electrostatic stabiliser, proton shuttle (general acid/base) |
B | ASP102 | modifies pKa |
B | GLY193 | electrostatic stabiliser |
B | SER195 | covalent catalysis |
B | GLY196 | electrostatic stabiliser |
site_id | MCSA3 |
Number of Residues | 5 |
Details | M-CSA 387 |
Chain | Residue | Details |
C | HIS57 | electrostatic stabiliser, proton shuttle (general acid/base) |
C | ASP102 | modifies pKa |
C | GLY193 | electrostatic stabiliser |
C | SER195 | covalent catalysis |
C | GLY196 | electrostatic stabiliser |