Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
B [auth H]SCOP2B SuperfamilyTrypsin-like serine proteases8042154 3000114 SCOP2B (2022-06-29)
D [auth K]SCOP2B SuperfamilyTrypsin-like serine proteases8042154 3000114 SCOP2B (2022-06-29)
E [auth P]SCOP2B SuperfamilyBPTI-like8038485 3000628 SCOP2B (2022-06-29)
F [auth Q]SCOP2B SuperfamilyBPTI-like8038485 3000628 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
E [auth P]PF00014e1bthP1 A: few secondary structure elementsX: BPTI-like (From Topology)H: BPTI-like (From Topology)T: BPTI-likeF: PF00014ECOD (1.6)
F [auth Q]PF00014e1bthQ1 A: few secondary structure elementsX: BPTI-like (From Topology)H: BPTI-like (From Topology)T: BPTI-likeF: PF00014ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A [auth L],
C [auth J]
PF09396Thrombin light chain (Thrombin_light)Thrombin light chainThrombin is an enzyme that cleaves bonds after Arg and Lys, converts fibrinogen to fibrin and activates factors V, VII, VIII. Prothrombin is activated on the surface of a phospholipid membrane where factor Xa removes the activation peptide and cleave ...Thrombin is an enzyme that cleaves bonds after Arg and Lys, converts fibrinogen to fibrin and activates factors V, VII, VIII. Prothrombin is activated on the surface of a phospholipid membrane where factor Xa removes the activation peptide and cleaves the remaining part into light and heavy chains. This domain corresponds to the light chain of thrombin.
Domain
B [auth H],
D [auth K]
PF00089Trypsin (Trypsin)Trypsin- Domain
E [auth P],
F [auth Q]
PF00014Kunitz/Bovine pancreatic trypsin inhibitor domain (Kunitz_BPTI)Kunitz/Bovine pancreatic trypsin inhibitor domainIndicative 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 ...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 tick anticoagulant peptide (TAP, Swiss:P17726). This is a highly selective inhibitor of factor Xa in the blood coagulation pathways [1]. TAP molecules are highly dipolar [2], and are arranged to form a twisted two- stranded antiparallel beta-sheet followed by an alpha helix [1].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A [auth L],
C [auth J]
THROMBIN
B [auth H],
D [auth K]
THROMBIN
E [auth P],
F [auth Q]
BOVINE PANCREATIC TRYPSIN INHIBITOR

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
A [auth L],
C [auth J]
IPR018992Thrombin light chainDomain
A [auth L],
C [auth J]
IPR037111Thrombin light chain domain superfamilyHomologous Superfamily
A [auth L],
C [auth J]
IPR003966Prothrombin/thrombinFamily
A [auth L],
C [auth J]
IPR018114Serine proteases, trypsin family, histidine active siteActive Site
A [auth L],
C [auth J]
IPR009003Peptidase S1, PA clanHomologous Superfamily
A [auth L],
C [auth J]
IPR033116Serine proteases, trypsin family, serine active siteActive Site
A [auth L],
C [auth J]
IPR001254Serine proteases, trypsin domainDomain
A [auth L],
C [auth J]
IPR035972Gamma-carboxyglutamic acid-rich (GLA) domain superfamilyHomologous Superfamily
A [auth L],
C [auth J]
IPR000001KringleDomain
A [auth L],
C [auth J]
IPR000294Gamma-carboxyglutamic acid-rich (GLA) domainDomain
A [auth L],
C [auth J]
IPR018056Kringle, conserved siteConserved Site
A [auth L],
C [auth J]
IPR013806Kringle-like foldHomologous Superfamily
A [auth L],
C [auth J]
IPR038178Kringle superfamilyHomologous Superfamily
A [auth L],
C [auth J]
IPR001314Peptidase S1A, chymotrypsin familyFamily
A [auth L],
C [auth J]
IPR043504Peptidase S1, PA clan, chymotrypsin-like foldHomologous Superfamily
B [auth H],
D [auth K]
IPR018992Thrombin light chainDomain
B [auth H],
D [auth K]
IPR037111Thrombin light chain domain superfamilyHomologous Superfamily
B [auth H],
D [auth K]
IPR003966Prothrombin/thrombinFamily
B [auth H],
D [auth K]
IPR018114Serine proteases, trypsin family, histidine active siteActive Site
B [auth H],
D [auth K]
IPR009003Peptidase S1, PA clanHomologous Superfamily
B [auth H],
D [auth K]
IPR033116Serine proteases, trypsin family, serine active siteActive Site
B [auth H],
D [auth K]
IPR001254Serine proteases, trypsin domainDomain
B [auth H],
D [auth K]
IPR035972Gamma-carboxyglutamic acid-rich (GLA) domain superfamilyHomologous Superfamily
B [auth H],
D [auth K]
IPR000001KringleDomain
B [auth H],
D [auth K]
IPR000294Gamma-carboxyglutamic acid-rich (GLA) domainDomain
B [auth H],
D [auth K]
IPR018056Kringle, conserved siteConserved Site
B [auth H],
D [auth K]
IPR013806Kringle-like foldHomologous Superfamily
B [auth H],
D [auth K]
IPR038178Kringle superfamilyHomologous Superfamily
B [auth H],
D [auth K]
IPR001314Peptidase S1A, chymotrypsin familyFamily
B [auth H],
D [auth K]
IPR043504Peptidase S1, PA clan, chymotrypsin-like foldHomologous Superfamily
E [auth P],
F [auth Q]
IPR020901Proteinase inhibitor I2, Kunitz, conserved siteConserved Site
E [auth P],
F [auth Q]
IPR036880Pancreatic trypsin inhibitor Kunitz domain superfamilyHomologous Superfamily
E [auth P],
F [auth Q]
IPR002223Pancreatic trypsin inhibitor Kunitz domainDomain

Pharos: Disease Associations Pharos Homepage Annotation

ChainsDrug Target  Associated Disease
A [auth L],
C [auth J]
PharosP00734
B [auth H],
D [auth K]
PharosP00734