1PQ5
Trypsin at pH 5, 0.85 A
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 | d1pq5a_ | All beta proteins | Trypsin-like serine proteases | Trypsin-like serine proteases | Eukaryotic proteases | Trypsin(ogen) | (Fusarium oxysporum ) [TaxId: 5507 ], | SCOPe (2.08) |
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
Domain Annotation: ECOD Classification ECOD Database Homepage
Domain Annotation: CATH CATH Database Homepage
Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
---|---|---|---|---|---|---|
A | 2.40.10.10 | Mainly Beta | Beta Barrel | Thrombin, subunit H | Trypsin-like serine proteases | CATH (4.3.0) |
Protein Family Annotation Pfam Database Homepage
Chains | Accession | Name | Description | Comments | Source |
---|---|---|---|---|---|
PF00089 | Trypsin (Trypsin) | Trypsin | - | Domain |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
Chains | Polymer | Molecular Function | Biological Process | Cellular Component |
---|---|---|---|---|
Trypsin |
InterPro: Protein Family Classification InterPro Database Homepage
Chains | Accession | Name | Type |
---|---|---|---|
IPR001254 | Serine proteases, trypsin domain | Domain | |
IPR050430 | Peptidase S1 family serine proteases | Family | |
IPR009003 | Peptidase S1, PA clan | Homologous Superfamily | |
IPR043504 | Peptidase S1, PA clan, chymotrypsin-like fold | Homologous Superfamily | |
IPR018114 | Serine proteases, trypsin family, histidine active site | Active Site | |
IPR001314 | Peptidase S1A, chymotrypsin family | Family | |
IPR033116 | Serine proteases, trypsin family, serine active site | Active Site |
Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage
Chains | Enzyme Name | Description | Catalytic Residues |
---|---|---|---|
trypsin M-CSA #173 | The mechanism of the serine proteases is commonly believed to be among the best understood of all enzymes. As their name suggests, they are involved in hydrolysis of proteins using a serine nucleophile. As well as the active site, there is also a 'specificity pocket' which determines which amino acids the enzyme will cleave at. For trypsin, this pocket contains a negatively charged residue, which results in it having a preference for cleaving at positively charged residues i.e. lysine or arginine. | Defined by 6 residues: HIS:A-41 [auth A-56]ASP:A-84 [auth A-99]GLN:A-177 [auth A-192]GLY:A-178 [auth A-193]ASP:A-179 [auth A-194]SER:A-180 [auth A-195] | EC: 3.4.21.4 (PDB Primary Data) |