1ZR0

Crystal Structure of Kunitz Domain 1 of Tissue Factor Pathway Inhibitor-2 with Bovine Trypsin

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1zr0a_	All beta proteins	Trypsin-like serine proteases	Trypsin-like serine proteases	Eukaryotic proteases	Trypsin(ogen)	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
C	d1zr0c_	All beta proteins	Trypsin-like serine proteases	Trypsin-like serine proteases	Eukaryotic proteases	Trypsin(ogen)	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
B	d1zr0b1	Small proteins	BPTI-like	BPTI-like	Small Kunitz-type inhibitors & BPTI-like toxins	Tissue factor pathway inhibitor	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
D	d1zr0d_	Small proteins	BPTI-like	BPTI-like	Small Kunitz-type inhibitors & BPTI-like toxins	Tissue factor pathway inhibitor	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Trypsin-like serine proteases	8037496	3000114	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Trypsin-like serine proteases	8037496	3000114	SCOP2B (2022-06-29)
B	SCOP2 Family	Small Kunitz-type inhibitors & BPTI-like toxins	8020200	4003337	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	BPTI-like	8032580	3000628	SCOP2 (2022-06-29)
D	SCOP2B Superfamily	BPTI-like	8032580	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	Trypsin_1	e1zr0A1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel 2	F: Trypsin_1	ECOD (1.6)
C	Trypsin_1	e1zr0C1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel 2	F: Trypsin_1	ECOD (1.6)
B	Kunitz_BPTI	e1zr0B1	A: few secondary structure elements	X: BPTI-like (From Topology)	H: BPTI-like (From Topology)	T: BPTI-like	F: Kunitz_BPTI	ECOD (1.6)
D	Kunitz_BPTI	e1zr0D1	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	2.40.10.10	Mainly Beta	Beta Barrel	Thrombin, subunit H	Trypsin-like serine proteases	CATH (4.3.0)
C	2.40.10.10	Mainly Beta	Beta Barrel	Thrombin, subunit H	Trypsin-like serine proteases	CATH (4.3.0)
B	4.10.410.10	Few Secondary Structures	Irregular	Factor Xa Inhibitor	Pancreatic trypsin inhibitor Kunitz domain	CATH (4.3.0)
D	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, C	PF00089	Trypsin (Trypsin)	Trypsin	-	Domain
B, D	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 ...	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

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, C	Cationic trypsin	peptidase activity catalytic activity, acting on a protein hydrolase activity catalytic activity endopeptidase activity serine hydrolase activity serine-type peptidase activity serine-type endopeptidase activity protein binding binding serpin family protein binding cation binding ion binding metal ion binding peptidase activity catalytic activity, acting on a protein hydrolase activity catalytic activity endopeptidase activity serine hydrolase activity serine-type peptidase activity serine-type endopeptidase activity protein binding binding serpin family protein binding cation binding ion binding metal ion binding small molecule binding	proteolysis metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process multicellular organismal process digestion	protein-containing complex serine protease inhibitor complex protease inhibitor complex peptidase inhibitor complex cellular anatomical structure extracellular region extracellular space
B, D	Tissue factor pathway inhibitor 2	enzyme regulator activity molecular function inhibitor activity peptidase regulator activity serine-type endopeptidase inhibitor activity molecular function regulator activity enzyme inhibitor activity peptidase inhibitor activity endopeptidase regulator activity endopeptidase inhibitor activity structural molecule activity extracellular matrix structural constituent	multicellular organismal process regulation of body fluid levels wound healing response to stimulus hemostasis biological regulation blood coagulation response to stress coagulation regulation of biological quality response to wounding cellular response to stimulus cellular response to stress response to fluid shear stress multicellular organismal process regulation of body fluid levels wound healing response to stimulus hemostasis biological regulation blood coagulation response to stress coagulation regulation of biological quality response to wounding cellular response to stimulus cellular response to stress response to fluid shear stress cellular process cellular response to fluid shear stress negative regulation of hydrolase activity negative regulation of proteolysis regulation of cellular process regulation of catalytic activity negative regulation of biological process negative regulation of catalytic activity regulation of primary metabolic process negative regulation of peptidase activity regulation of proteolysis proteolysis negative regulation of cellular process protein metabolic process negative regulation of protein metabolic process negative regulation of macromolecule metabolic process regulation of biological process regulation of protein metabolic process negative regulation of metabolic process negative regulation of molecular function regulation of peptidase activity primary metabolic process regulation of macromolecule metabolic process regulation of molecular function regulation of hydrolase activity metabolic process macromolecule metabolic process regulation of metabolic process	cell periphery extracellular matrix cellular anatomical structure external encapsulating structure extracellular region extracellular space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, C	IPR009003	Peptidase S1, PA clan	Homologous Superfamily
A, C	IPR001314	Peptidase S1A, chymotrypsin family	Family
A, C	IPR033116	Serine proteases, trypsin family, serine active site	Active Site
A, C	IPR001254	Serine proteases, trypsin domain	Domain
A, C	IPR043504	Peptidase S1, PA clan, chymotrypsin-like fold	Homologous Superfamily
A, C	IPR050127	Serine Proteases (Peptidase S1 Family)	Family
A, C	IPR018114	Serine proteases, trypsin family, histidine active site	Active Site
B, D	IPR002223	Pancreatic trypsin inhibitor Kunitz domain	Domain
B, D	IPR008296	Tissue factor pathway inhibitor-like	Family
B, D	IPR050098	Tissue factor pathway inhibitor/Kunitz-type serine protease inhibitor-like	Family
B, D	IPR020901	Proteinase inhibitor I2, Kunitz, conserved site	Conserved Site
B, D	IPR036880	Pancreatic trypsin inhibitor Kunitz domain superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
B, D	Pharos: P48307	melanoma rheumatoid arthritis breast carcinoma Neoplasm Metastasis breast cancer colorectal cancer malignant ependymoma adrenal cortex adenoma osteoarthritis ovarian cancer pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia colorectal carcinoma primitive neuroectodermal tumor cystic fibrosis hepatocellular carcinoma melanoma rheumatoid arthritis breast carcinoma Neoplasm Metastasis breast cancer colorectal cancer malignant ependymoma adrenal cortex adenoma osteoarthritis ovarian cancer pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia colorectal carcinoma primitive neuroectodermal tumor cystic fibrosis hepatocellular carcinoma lung carcinoma malignant glioma atypical teratoid rhabdoid tumor osteoarthritis susceptibility 1 pancreatic intraductal papillary-mucinous carcinoma chronic kidney disease pancreatic neoplasm pterygium dermatomyositis tuberculosis interstitial cystitis malignant colon neoplasm malignant mesothelioma malignant pancreatic neoplasm medulloblastoma nephrosclerosis pancreatic intraductal papillary-mucinous neoplasm pituitary cancer cutaneous melanoma pulmonary hypertension glioblastoma ulcerative colitis large cell medulloblastoma lung cancer

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.