1DS2
CRYSTAL STRUCTURE OF SGPB:OMTKY3-COO-LEU18I
External Resource: Annotation
Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage
Chains | Domain Info | Class | Fold | Superfamily | Family | Domain | Species | Provenance Source (Version) |
---|---|---|---|---|---|---|---|---|
A [auth E] | d1ds2e_ | All beta proteins | Trypsin-like serine proteases | Trypsin-like serine proteases | Prokaryotic proteases | Protease B | (Streptomyces griseus ) [TaxId: 1911 ], | SCOPe (2.08) |
B [auth I] | d1ds2i_ | Small proteins | Kazal-type serine protease inhibitors | Kazal-type serine protease inhibitors | Ovomucoid domain III-like | Ovomucoid domains | turkey (Meleagris gallopavo ) [TaxId: 9103 ], | SCOPe (2.08) |
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
Chains | Type | Family Name | Domain Identifier | Family Identifier | Provenance Source (Version) |
---|---|---|---|---|---|
A [auth E] | SCOP2B Superfamily | Trypsin-like serine proteases | 8035344 | 3000114 | SCOP2B (2022-06-29) |
B [auth I] | SCOP2B Superfamily | Kazal-type serine protease inhibitors | 8040162 | 3000605 | SCOP2B (2022-06-29) |
Domain Annotation: ECOD Classification ECOD Database Homepage
Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
---|---|---|---|---|---|---|---|---|
A [auth E] | Trypsin_3 | e1ds2E1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: FMN-binding split barrel 2 | F: Trypsin_3 | ECOD (1.6) |
B [auth I] | Kazal_1 | e1ds2I1 | A: few secondary structure elements | X: Kazal-type serine protease inhibitors-like | H: Kazal-type serine protease inhibitors (From Topology) | T: Kazal-type serine protease inhibitors | F: Kazal_1 | ECOD (1.6) |
Domain Annotation: CATH CATH Database Homepage
Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
---|---|---|---|---|---|---|
A [auth E] | 2.40.10.10 | Mainly Beta | Beta Barrel | Thrombin, subunit H | Trypsin-like serine proteases | CATH (4.3.0) |
B [auth I] | 3.30.60.30 | Alpha Beta | 2-Layer Sandwich | Wheat Germ Agglutinin (Isolectin 2) | domain 1 | CATH (4.3.0) |
Protein Family Annotation Pfam Database Homepage
Chains | Accession | Name | Description | Comments | Source |
---|---|---|---|---|---|
A [auth E] | PF00089 | Trypsin (Trypsin) | Trypsin | - | Domain |
B [auth I] | PF00050 | Kazal-type serine protease inhibitor domain (Kazal_1) | Kazal-type serine protease inhibitor domain | Usually indicative of serine protease inhibitors. However, kazal-like domains are also seen in the extracellular part of agrins, which are not known to be protease inhibitors. Kazal domains often occur in tandem arrays. Small alpha+beta fold containi ... | Domain |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
Chains | Polymer | Molecular Function | Biological Process | Cellular Component |
---|---|---|---|---|
A [auth E] | PROTEINASE B (SGPB) | |||
B [auth I] | OVOMUCOID | - |
InterPro: Protein Family Classification InterPro Database Homepage
Chains | Accession | Name | Type |
---|---|---|---|
A [auth E] | IPR001254 | Serine proteases, trypsin domain | Domain |
A [auth E] | IPR009003 | Peptidase S1, PA clan | Homologous Superfamily |
A [auth E] | IPR004236 | Peptidase S1A, alpha-lytic prodomain | Domain |
A [auth E] | IPR001316 | Peptidase S1A, streptogrisin | Family |
A [auth E] | IPR043504 | Peptidase S1, PA clan, chymotrypsin-like fold | Homologous Superfamily |
A [auth E] | IPR018114 | Serine proteases, trypsin family, histidine active site | Active Site |
A [auth E] | IPR033116 | Serine proteases, trypsin family, serine active site | Active Site |
B [auth I] | IPR050159 | Kazal-type Serine Protease Inhibitor | Family |
B [auth I] | IPR036058 | Kazal domain superfamily | Homologous Superfamily |
B [auth I] | IPR002350 | Kazal domain | Domain |
B [auth I] | IPR001239 | Proteinase inhibitor I1, Kazal-type, metazoa | Family |
Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage
Chains | Enzyme Name | Description | Catalytic Residues |
---|---|---|---|
streptogrisin B M-CSA #608 | Serine protease B extracted from Streptomyces griseus shows similar active site architecture to the well characterised family of human serine proteases and displays trypsin like specificity for its peptide substrates. It has proved especially useful in analysing the effect of peptide inhibitors such as turkey ovomucoid inhibitor. | Defined by 5 residues: HIS:A-33 [auth E-57]ASP:A-63 [auth E-102]GLY:A-139 [auth E-193]SER:A-141 [auth E-195]SER:A-156 [auth E-214] | EC: 3.4.21.81 (PDB Primary Data) |