Annotations: 9PYF

uPA Inhibitory Fab AB2 Complex

External Resource: Annotation

SAbDab Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
D, E [auth H]	Heavy Chain	IGHV3	-	-	SAbDab (2026-10-16)
A, C [auth I]	Light Chain	IGKV2	Kappa	-	SAbDab (2026-10-16)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B [auth F]	PF00089	Trypsin (Trypsin)	Trypsin		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
D, E [auth H]	AB2 Fab Heavy Chain	-	-	-
B [auth F]	Urokinase-type plasminogen activator	molecular function activator activity molecular function regulator activity signaling receptor regulator activity receptor ligand activity signaling receptor activator activity 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	regulation of biological process cell adhesion regulation of cellular process regulation of cell adhesion biological regulation cellular process cell adhesion mediated by integrin regulation of cell adhesion mediated by integrin multicellular organismal process regulation of body fluid levels response to stimulus regulation of response to external stimulus negative regulation of biological process regulation of response to wounding regulation of biological process cell adhesion regulation of cellular process regulation of cell adhesion biological regulation cellular process cell adhesion mediated by integrin regulation of cell adhesion mediated by integrin multicellular organismal process regulation of body fluid levels response to stimulus regulation of response to external stimulus negative regulation of biological process regulation of response to wounding regulation of coagulation response to stress regulation of response to stress coagulation regulation of multicellular organismal process regulation of biological quality response to wounding regulation of hemostasis wound healing negative regulation of response to stimulus negative regulation of wound healing regulation of blood coagulation negative regulation of blood coagulation hemostasis response to external stimulus negative regulation of response to wounding blood coagulation 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 primary metabolic process gene expression macromolecule biosynthetic process protein maturation biosynthetic process proteolysis protein processing metabolic process protein metabolic process macromolecule metabolic process plasminogen activation cellular response to stimulus positive regulation of cell communication positive regulation of signal transduction signaling positive regulation of biological process regulation of signal transduction cell surface receptor protein tyrosine kinase signaling pathway cell communication positive regulation of response to stimulus positive regulation of ERBB signaling pathway regulation of epidermal growth factor receptor signaling pathway epidermal growth factor receptor signaling pathway signal transduction enzyme-linked receptor protein signaling pathway positive regulation of cellular process positive regulation of epidermal growth factor receptor signaling pathway regulation of ERBB signaling pathway regulation of signaling cell surface receptor signaling pathway ERBB signaling pathway regulation of cell communication positive regulation of signaling regulation of cell motility regulation of smooth muscle cell migration smooth muscle cell migration muscle cell migration regulation of locomotion regulation of cell migration cell migration cell motility locomotion regulation of protein maturation regulation of primary metabolic process regulation of proteolysis regulation of plasminogen activation regulation of biosynthetic process regulation of protein metabolic process regulation of macromolecule metabolic process regulation of gene expression regulation of protein processing regulation of macromolecule biosynthetic process regulation of metabolic process chemotaxis taxis response to chemical positive regulation of coagulation positive regulation of blood coagulation 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 negative regulation of plasminogen activation negative regulation of proteolysis negative regulation of protein maturation negative regulation of cellular process negative regulation of protein metabolic process negative regulation of macromolecule metabolic process negative regulation of metabolic process negative regulation of gene expression negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process negative regulation of protein processing positive regulation of locomotion positive regulation of cell migration positive regulation of cell motility regulation of cell-substrate adhesion cell-substrate adhesion regulation of smooth muscle cell-matrix adhesion smooth muscle cell-matrix adhesion cell-matrix adhesion regulation of cell-matrix adhesion regulation of integrin-mediated signaling pathway integrin-mediated signaling pathway urokinase plasminogen activator signaling pathway cellular component disassembly extracellular matrix disassembly regulation of cellular component organization positive regulation of cellular component organization positive regulation of extracellular matrix organization extracellular matrix organization positive regulation of extracellular matrix disassembly cellular component organization cellular component organization or biogenesis regulation of extracellular matrix organization regulation of extracellular matrix disassembly extracellular structure organization external encapsulating structure organization	membrane-bounded organelle intracellular anatomical structure tertiary granule membrane membrane intracellular vesicle intracellular membrane-bounded organelle endomembrane system tertiary granule intracellular organelle cytoplasmic vesicle membrane cellular anatomical structure bounding membrane of organelle vesicle membrane cytoplasmic vesicle membrane-bounded organelle intracellular anatomical structure tertiary granule membrane membrane intracellular vesicle intracellular membrane-bounded organelle endomembrane system tertiary granule intracellular organelle cytoplasmic vesicle membrane cellular anatomical structure bounding membrane of organelle vesicle membrane cytoplasmic vesicle organelle secretory granule secretory vesicle cytoplasm vesicle organelle membrane secretory granule membrane anchoring junction cell junction focal adhesion cell-substrate junction specific granule membrane specific granule cell periphery cell surface plasma membrane external side of plasma membrane side of membrane extracellular exosome extracellular vesicle extracellular organelle extracellular region extracellular membrane-bounded organelle protein-containing complex serine protease inhibitor complex protease inhibitor complex peptidase inhibitor complex catalytic complex peptidase complex endopeptidase complex serine-type endopeptidase complex serine-type peptidase complex protein complex involved in cell-matrix adhesion protein complex involved in cell adhesion
A, C [auth I]	AB2 Fab Light Chain	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B [auth F]	IPR018056	Kringle, conserved site	Conserved Site
B [auth F]	IPR018114	Serine protease-like, trypsin family, histidine active site	Active Site
B [auth F]	IPR000742	EGF-like domain	Domain
B [auth F]	IPR013806	Kringle-like fold	Homologous Superfamily
B [auth F]	IPR038178	Kringle superfamily	Homologous Superfamily
B [auth F]	IPR009003	Peptidase S1, PA clan	Homologous Superfamily
B [auth F]	IPR001314	Peptidase S1A, chymotrypsin family	Family
B [auth F]	IPR033116	Serine proteases, trypsin family, serine active site	Active Site
B [auth F]	IPR001254	Serine proteases, trypsin domain	Domain
B [auth F]	IPR050127	Serine Proteases (Peptidase S1 Family)	Family
B [auth F]	IPR000001	Kringle	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
B [auth F]	: P00749	Quebec platelet disorder Alzheimer disease idiopathic pulmonary fibrosis transitional cell carcinoma Henoch-Schoenlein purpura IgA glomerulonephritis Venous Thrombosis malignant pancreatic neoplasm adenocarcinoma cerebrovascular disorder cholesterol embolism tubular adenocarcinoma ventricular fibrillation psoriasis granular cell carcinoma Quebec platelet disorder Alzheimer disease idiopathic pulmonary fibrosis transitional cell carcinoma Henoch-Schoenlein purpura IgA glomerulonephritis Venous Thrombosis malignant pancreatic neoplasm adenocarcinoma cerebrovascular disorder cholesterol embolism tubular adenocarcinoma ventricular fibrillation psoriasis granular cell carcinoma cerebral infarction myocardial infarction cirrhosis of liver intermediate coronary syndrome anuria nephritis brain edema brain ischemia prostate cancer carotid artery disease pulmonary embolism middle cerebral artery infarction sagittal sinus thrombosis asthma ischemia reperfusion injury bone cancer pilocytic astrocytoma breast cancer gastric carcinoma malignant glioma hereditary diffuse gastric adenocarcinoma multiple sclerosis idiopathic interstitial pneumonia nasopharyngeal carcinoma inflammatory bowel disease coronary artery disease interstitial cystitis osteosarcoma cribriform carcinoma of breast invasive ductal breast carcinoma atopic eczema pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia ischemic disease primitive neuroectodermal tumor malignant colon neoplasm cancer gastric neoplasm Alzheimer disease type 1 thrombotic disease interstitial lung disease intracranial hemorrhage ovarian cancer Crohn disease ulcerative colitis atypical teratoid rhabdoid tumor pancreatic neoplasm large cell medulloblastoma lung adenocarcinoma gastric cancer malignant ependymoma glioblastoma acute interstitial pneumonia hypotensive disorder congestive heart failure intracerebral hemorrhage non-small cell lung carcinoma cribriform carcinoma tuberculosis pancreatic ductal adenocarcinoma cystic fibrosis