2FI3
Crystal structure of a BPTI variant (Cys14->Ser, Cys38->Ser) in complex with trypsin
Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage
Chains | Domain Info | Class | Fold | Superfamily | Family | Domain | Species | Provenance Source (Version) |
---|---|---|---|---|---|---|---|---|
A [auth E] | d2fi3e_ | All beta proteins | Trypsin-like serine proteases | Trypsin-like serine proteases | Eukaryotic proteases | Trypsin(ogen) | (Bos taurus ) [TaxId: 9913 ], | SCOPe (2.08) |
B [auth I] | d2fi3i1 | Small proteins | BPTI-like | BPTI-like | Small Kunitz-type inhibitors & BPTI-like toxins | Pancreatic trypsin inhibitor, BPTI | cattle (Bos taurus ) [TaxId: 9913 ], | 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 | 8037496 | 3000114 | SCOP2B (2022-06-29) |
B [auth I] | SCOP2B Superfamily | BPTI-like | 8038485 | 3000628 | 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_1 | e2fi3E1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: FMN-binding split barrel 2 | F: Trypsin_1 | ECOD (1.6) |
B [auth I] | Kunitz_BPTI | e2fi3I1 | A: few secondary structure elements | X: BPTI-like (From Topology) | H: BPTI-like (From Topology) | T: BPTI-like | F: Kunitz_BPTI | 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] | 4.10.410.10 | Few Secondary Structures | Irregular | Factor Xa Inhibitor | Pancreatic trypsin inhibitor Kunitz domain | 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] | PF00014 | Kunitz/Bovine pancreatic trypsin inhibitor domain (Kunitz_BPTI) | Kunitz/Bovine pancreatic trypsin inhibitor domain | Indicative of a protease inhibitor, usually a serine protease inhibitor. Structure is a disulfide rich alpha+beta fold. BPTI (bovine pancreatic trypsin inhibitor) is an extensively studied model structure. Certain family members are similar to the ... | Domain |