Annotations: 5BRR

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A [auth I]	d5brri_	Multi-domain proteins (alpha and beta)	Serpins	Serpins	Serpins	Plasminogen activator inhibitor-1	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 [auth I]	SCOP2B Superfamily	Serpins	8041305	3001563	SCOP2B (2022-06-29)
B [auth E]	SCOP2B Superfamily	Trypsin-like serine proteases	8042245	3000114	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 I]	Serpin	e5brrI1	A: a+b complex topology	X: Serpins (From Topology)	H: Serpins (From Topology)	T: Serpins	F: Serpin	ECOD (1.6)
B [auth E]	Trypsin_1	e5brrE1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel 2	F: Trypsin_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth I]	3.30.497.10	Alpha Beta	2-Layer Sandwich	Antithrombin	Chain I, domain 2	CATH (4.3.0)
A [auth I]	2.30.39.10	Mainly Beta	Roll	Alpha-1-antitrypsin	domain 1	CATH (4.3.0)
B [auth E]	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
A [auth I]	PF00079	Serpin (serine protease inhibitor) (Serpin)	Serpin (serine protease inhibitor)	Structure is a multi-domain fold containing a bundle of helices and a beta sandwich.	Domain
B [auth E]	PF00089	Trypsin (Trypsin)	Trypsin	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth I]	Plasminogen activator inhibitor 1	protein binding binding signaling receptor binding enzyme binding protease binding 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	negative regulation of locomotion regulation of biological process regulation of cell motility regulation of cellular process regulation of smooth muscle cell migration biological regulation negative regulation of biological process smooth muscle cell migration muscle cell migration negative regulation of smooth muscle cell migration regulation of locomotion regulation of cell migration negative regulation of cellular process negative regulation of cell motility negative regulation of locomotion regulation of biological process regulation of cell motility regulation of cellular process regulation of smooth muscle cell migration biological regulation negative regulation of biological process smooth muscle cell migration muscle cell migration negative regulation of smooth muscle cell migration regulation of locomotion regulation of cell migration negative regulation of cellular process negative regulation of cell motility cell migration cellular process cell motility locomotion negative regulation of cell migration regulation of defense response response to stimulus regulation of response to external stimulus defense response positive regulation of biological process response to external stimulus regulation of inflammatory response positive regulation of response to stimulus positive regulation of response to external stimulus positive regulation of inflammatory response regulation of response to stimulus regulation of response to stress response to stress positive regulation of defense response inflammatory response developmental process multicellular organismal process blood vessel morphogenesis tube development angiogenesis vasculature development circulatory system development multicellular organism development anatomical structure morphogenesis tube morphogenesis anatomical structure development anatomical structure formation involved in morphogenesis blood vessel development system development cellular response to stimulus extrinsic apoptotic signaling pathway via death domain receptors signaling negative regulation of signaling regulation of signal transduction regulation of programmed cell death extrinsic apoptotic signaling pathway negative regulation of cell communication cell communication negative regulation of extrinsic apoptotic signaling pathway negative regulation of apoptotic signaling pathway signal transduction regulation of signaling cell surface receptor signaling pathway negative regulation of response to stimulus negative regulation of programmed cell death regulation of apoptotic process negative regulation of extrinsic apoptotic signaling pathway via death domain receptors cell death negative regulation of signal transduction regulation of extrinsic apoptotic signaling pathway apoptotic signaling pathway negative regulation of apoptotic process regulation of extrinsic apoptotic signaling pathway via death domain receptors regulation of cell communication apoptotic process programmed cell death regulation of apoptotic signaling pathway regulation of body fluid levels regulation of response to wounding regulation of coagulation coagulation regulation of multicellular organismal process regulation of biological quality response to wounding regulation of hemostasis wound healing negative regulation of wound healing regulation of blood coagulation negative regulation of blood coagulation hemostasis negative regulation of response to wounding blood coagulation negative regulation of hemostasis fibrinolysis negative regulation of coagulation negative regulation of response to external stimulus regulation of wound healing negative regulation of multicellular organismal process negative regulation of cell adhesion mediated by integrin regulation of cell adhesion mediated by integrin regulation of cell adhesion negative regulation of cell adhesion cell adhesion cell adhesion mediated by integrin replicative senescence cellular metabolic process metabolic process response to organic substance biological process involved in interspecies interaction between organisms response to lipid response to other organism cellular response to lipopolysaccharide response to oxygen-containing compound cellular response to molecule of bacterial origin response to lipopolysaccharide cellular response to oxygen-containing compound response to biotic stimulus cellular response to biotic stimulus cellular response to chemical stimulus response to chemical response to bacterium cellular response to lipid cellular response to organic substance response to external biotic stimulus response to molecule of bacterial origin positive regulation of interleukin-8 production cellular biosynthetic process positive regulation of cellular metabolic process positive regulation of macromolecule biosynthetic process positive regulation of metabolic process organic substance metabolic process positive regulation of biosynthetic process cytokine production organic substance biosynthetic process regulation of cytokine production positive regulation of macromolecule metabolic process positive regulation of cellular process regulation of biosynthetic process regulation of cellular metabolic process interleukin-8 production regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process regulation of cellular biosynthetic process regulation of gene expression biosynthetic process positive regulation of gene expression positive regulation of multicellular organismal process regulation of macromolecule biosynthetic process macromolecule metabolic process positive regulation of cytokine production regulation of metabolic process positive regulation of cellular biosynthetic process regulation of interleukin-8 production odontogenesis of dentin-containing tooth dentinogenesis odontogenesis animal organ development animal organ morphogenesis negative regulation of hydrolase activity negative regulation of proteolysis regulation of catalytic activity negative regulation of catalytic activity negative regulation of endopeptidase activity regulation of primary metabolic process negative regulation of peptidase activity regulation of proteolysis proteolysis regulation of endopeptidase activity protein metabolic process negative regulation of protein metabolic process negative regulation of macromolecule metabolic process organonitrogen compound metabolic process regulation of protein metabolic process negative regulation of metabolic process regulation of peptidase activity negative regulation of molecular function primary metabolic process regulation of molecular function regulation of hydrolase activity positive regulation of coagulation positive regulation of blood coagulation positive regulation of hemostasis positive regulation of response to wounding positive regulation of wound healing regulation of fibrinolysis negative regulation of fibrinolysis regulation of developmental process regulation of vasculature development vascular wound healing regulation of anatomical structure morphogenesis regulation of multicellular organismal development negative regulation of blood vessel morphogenesis negative regulation of developmental process angiogenesis involved in wound healing negative regulation of angiogenesis negative regulation of vasculature development regulation of angiogenesis negative regulation of vascular wound healing regulation of vascular wound healing positive regulation of odontoblast differentiation cellular developmental process regulation of cell differentiation epithelial cell differentiation regulation of epithelial cell differentiation positive regulation of developmental process positive regulation of cell differentiation cell differentiation neuroepithelial cell differentiation odontoblast differentiation epithelium development regulation of odontoblast differentiation tissue development positive regulation of epithelial cell differentiation columnar/cuboidal epithelial cell differentiation positive regulation of neuroepithelial cell differentiation regulation of localization import into cell positive regulation of cellular component organization regulation of cellular component organization transport vesicle-mediated transport cellular component organization localization positive regulation of endocytosis cellular component organization or biogenesis positive regulation of receptor-mediated endocytosis regulation of endocytosis regulation of transport regulation of receptor-mediated endocytosis regulation of vesicle-mediated transport establishment of localization positive regulation of transport endocytosis receptor-mediated endocytosis positive regulation of angiogenesis positive regulation of vasculature development positive regulation of monocyte chemotaxis positive regulation of locomotion positive regulation of chemotaxis positive regulation of cell migration regulation of monocyte chemotaxis taxis positive regulation of cell motility myeloid leukocyte migration positive regulation of mononuclear cell migration regulation of immune system process regulation of mononuclear cell migration positive regulation of immune system process cell chemotaxis chemotaxis regulation of leukocyte chemotaxis regulation of leukocyte migration positive regulation of leukocyte migration positive regulation of leukocyte chemotaxis regulation of chemotaxis monocyte chemotaxis leukocyte migration immune system process mononuclear cell migration leukocyte chemotaxis regulation of protein maturation negative regulation of plasminogen activation negative regulation of cellular metabolic process protein maturation plasminogen activation zymogen activation negative regulation of cellular biosynthetic process negative regulation of gene expression negative regulation of macromolecule biosynthetic process regulation of protein processing protein processing negative regulation of protein maturation regulation of plasminogen activation negative regulation of biosynthetic process negative regulation of protein processing defense response to Gram-negative bacterium defense response to bacterium defense response to other organism regulation of signaling receptor activity negative regulation of endothelial cell apoptotic process regulation of epithelial cell apoptotic process epithelial cell apoptotic process negative regulation of epithelial cell apoptotic process endothelial cell apoptotic process regulation of endothelial cell apoptotic process regulation of cell-substrate adhesion cell-substrate adhesion negative regulation of smooth muscle cell-matrix adhesion negative regulation of cell-matrix adhesion regulation of smooth muscle cell-matrix adhesion smooth muscle cell-matrix adhesion cell-matrix adhesion regulation of cell-matrix adhesion negative regulation of cell-substrate adhesion regulation of leukotriene production involved in inflammatory response arachidonic acid metabolite production involved in inflammatory response production of molecular mediator involved in inflammatory response positive regulation of leukotriene production involved in inflammatory response leukotriene production involved in inflammatory response	extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space cellular anatomical entity vesicle extracellular membrane-bounded organelle cell periphery extracellular matrix external encapsulating structure collagen-containing extracellular matrix extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space cellular anatomical entity vesicle extracellular membrane-bounded organelle cell periphery extracellular matrix external encapsulating structure collagen-containing extracellular matrix plasma membrane membrane protein-containing complex peptidase inhibitor complex serine protease inhibitor complex protease inhibitor complex vesicle lumen intracellular anatomical structure intracellular vesicle membrane-enclosed lumen cytoplasmic vesicle lumen intracellular membrane-bounded organelle secretory granule lumen endomembrane system intracellular organelle lumen intracellular organelle cytoplasmic vesicle organelle lumen secretory granule secretory vesicle cytoplasm platelet alpha granule platelet alpha granule lumen
B [auth E]	Tissue-type plasminogen activator	protein binding binding signaling receptor binding phosphoprotein binding peptidase activity catalytic activity, acting on a protein serine hydrolase activity serine-type peptidase activity hydrolase activity serine-type endopeptidase activity catalytic activity endopeptidase activity	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 muscle cell migration cell migration cellular process 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 muscle cell migration cell migration cellular process cell motility smooth muscle cell migration organic substance metabolic process organonitrogen compound metabolic process macromolecule modification metabolic process primary metabolic process protein metabolic process macromolecule metabolic process protein modification process regulation of response to external stimulus negative regulation of biological process regulation of response to wounding regulation of coagulation regulation of response to stress regulation of multicellular organismal process regulation of hemostasis regulation of biological process negative regulation of response to stimulus negative regulation of wound healing regulation of blood coagulation negative regulation of blood coagulation response to external stimulus negative regulation of response to wounding negative regulation of hemostasis fibrinolysis negative regulation of coagulation regulation of response to stimulus negative regulation of response to external stimulus regulation of wound healing negative regulation of multicellular organismal process zymogen activation cellular biosynthetic process cellular metabolic process gene expression macromolecule biosynthetic process protein maturation biosynthetic process proteolysis organic substance biosynthetic process protein processing plasminogen activation trans-synaptic signaling regulation of signaling regulation of cellular process signaling trans-synaptic signaling, modulating synaptic transmission modulation of chemical synaptic transmission cell-cell signaling cell communication chemical synaptic transmission trans-synaptic signaling by BDNF, modulating synaptic transmission synaptic signaling regulation of trans-synaptic signaling anterograde trans-synaptic signaling regulation of cell communication trans-synaptic signaling by BDNF negative regulation of proteolysis regulation of protein metabolic process negative regulation of metabolic process regulation of macromolecule metabolic process regulation of primary metabolic process regulation of proteolysis regulation of metabolic process negative regulation of protein metabolic process negative regulation of macromolecule metabolic process cellular response to stimulus cell surface receptor signaling pathway platelet-derived growth factor receptor signaling pathway cell surface receptor protein tyrosine kinase signaling pathway signal transduction enzyme-linked receptor protein signaling pathway positive regulation of coagulation positive regulation of biological process positive regulation of blood coagulation positive regulation of response to stimulus positive regulation of response to external stimulus positive regulation of hemostasis positive regulation of response to wounding positive regulation of wound healing regulation of fibrinolysis positive regulation of multicellular organismal process negative regulation of fibrinolysis regulation of protein maturation negative regulation of plasminogen activation negative regulation of cellular metabolic process regulation of cellular metabolic process negative regulation of cellular biosynthetic process regulation of gene expression negative regulation of gene expression negative regulation of macromolecule biosynthetic process regulation of protein processing regulation of macromolecule biosynthetic process negative regulation of protein maturation negative regulation of cellular process regulation of plasminogen activation regulation of biosynthetic process regulation of cellular biosynthetic process negative regulation of biosynthetic process negative regulation of protein processing response to decreased oxygen levels response to hypoxia response to oxygen levels response to abiotic stimulus sexual reproduction regulation of reproductive process reproductive process fertilization egg activation cell activation regulation of fertilization negative regulation of fertilization negative regulation of reproductive process prevention of polyspermy single fertilization	apical part of cell cellular anatomical entity extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space vesicle extracellular membrane-bounded organelle cell surface intracellular anatomical structure intracellular vesicle apical part of cell cellular anatomical entity extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space vesicle extracellular membrane-bounded organelle cell surface intracellular anatomical structure intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle secretory granule secretory vesicle cytoplasm synapse cell junction glutamatergic synapse protein-containing complex serine protease inhibitor complex protease inhibitor complex peptidase inhibitor complex Schaffer collateral - CA1 synapse

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth I]	IPR023795	Serpin, conserved site	Conserved Site
A [auth I]	IPR000215	Serpin family	Family
A [auth I]	IPR036186	Serpin superfamily	Homologous Superfamily
A [auth I]	IPR023796	Serpin domain	Domain
A [auth I]	IPR042178	Serpin superfamily, domain 1	Homologous Superfamily
A [auth I]	IPR042185	Serpin superfamily, domain 2	Homologous Superfamily
B [auth E]	IPR026280	Tissue plasminogen activator	Family
B [auth E]	IPR018056	Kringle, conserved site	Conserved Site
B [auth E]	IPR000742	EGF-like domain	Domain
B [auth E]	IPR018114	Serine proteases, trypsin family, histidine active site	Active Site
B [auth E]	IPR013806	Kringle-like fold	Homologous Superfamily
B [auth E]	IPR038178	Kringle superfamily	Homologous Superfamily
B [auth E]	IPR009003	Peptidase S1, PA clan	Homologous Superfamily
B [auth E]	IPR000083	Fibronectin, type I	Domain
B [auth E]	IPR001314	Peptidase S1A, chymotrypsin family	Family
B [auth E]	IPR033116	Serine proteases, trypsin family, serine active site	Active Site
B [auth E]	IPR001254	Serine proteases, trypsin domain	Domain
B [auth E]	IPR043504	Peptidase S1, PA clan, chymotrypsin-like fold	Homologous Superfamily
B [auth E]	IPR000001	Kringle	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A [auth I]	Pharos: P05121	atherosclerosis congestive heart failure nephrotic syndrome obesity disorder hypertensive disorder chronic kidney disease congenital plasminogen activator inhibitor type 1 deficiency Diabetes Mellitus, Experimental focal segmental glomerulosclerosis prostate cancer Behcet disease cholestasis nervous system disorder preeclampsia liver cancer atherosclerosis congestive heart failure nephrotic syndrome obesity disorder hypertensive disorder chronic kidney disease congenital plasminogen activator inhibitor type 1 deficiency Diabetes Mellitus, Experimental focal segmental glomerulosclerosis prostate cancer Behcet disease cholestasis nervous system disorder preeclampsia liver cancer thrombotic disease type 2 diabetes mellitus major depressive disorder ureteral obstruction malignant mesothelioma gastric neoplasm ovarian cancer pancreatic intraductal papillary-mucinous neoplasm heart failure atypical teratoid rhabdoid tumor inborn carbohydrate metabolic disorder kidney disease thrombophilia liver disease cystic fibrosis lung carcinoma ulcerative colitis diabetic kidney disease malignant ependymoma fatty liver disease gastric cancer arteriosclerosis disorder glioblastoma pancreatic ductal adenocarcinoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia atopic eczema autism cancer interstitial cystitis coronary artery disease liver neoplasm tuberculosis lung disease malignant glioma esophageal adenocarcinoma malignant pancreatic neoplasm gastric carcinoma osteosarcoma pancreatic intraductal papillary-mucinous carcinoma pilocytic astrocytoma attention deficit hyperactivity disorder, inattentive type hereditary diffuse gastric adenocarcinoma IgA glomerulonephritis psoriasis cerebrovascular disorder invasive ductal breast carcinoma cutaneous lupus erythematosus lung cancer
B [auth E]	Pharos: P00750	pulmonary embolism hypertensive disorder thrombophilia, familial, due to decreased release of tissue plasminogen activator angioedema respiratory failure Hematoma, Subdural cerebrovascular disorder atherosclerosis middle cerebral artery infarction myocardial infarction intracranial hemorrhage brain infarction intracranial vasospasm venous thromboembolism cardiac tamponade pulmonary embolism hypertensive disorder thrombophilia, familial, due to decreased release of tissue plasminogen activator angioedema respiratory failure Hematoma, Subdural cerebrovascular disorder atherosclerosis middle cerebral artery infarction myocardial infarction intracranial hemorrhage brain infarction intracranial vasospasm venous thromboembolism cardiac tamponade cerebral infarction meningoencephalitis cholesterol embolism congestive heart failure allergic contact dermatitis coronary thrombosis thrombotic disease hemopericardium bacterial infectious disease with sepsis amphetamine abuse intracranial thrombosis brain ischemia pericardial effusion aphasia psoriasis glioblastoma lung carcinoma heart failure malignant glioma medulloblastoma schizophrenia acquired lactic acidosis systemic lupus erythematosus Barrett esophagus coronary artery disease oligodendroglioma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia ulcerative colitis breast carcinoma periodontitis malignant colon neoplasm malignant mesothelioma arteriosclerosis disorder atopic eczema hypotensive disorder intracerebral hemorrhage ovarian cancer ischemia reperfusion injury drug-induced liver injury breast fibroadenoma pilocytic astrocytoma heart disease malignant ependymoma malignant pancreatic neoplasm sinusitis adrenal cortex carcinoma cystic fibrosis pancreatic ductal adenocarcinoma toxic encephalopathy lactic acidosis breast cancer C1 inhibitor deficiency

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.