4AFX | pdb_00004afx

Crystal structure of the reactive loop cleaved ZPI in I2 space group

External Resource: Annotation

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: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Serpins	8070171	3001563	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	PF28858	e4afxA01	A: a/b three-layered sandwiches	X: Rossmann-like	H: P-loop domains-related	T: ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase	F: PF28858	ECOD (v294.1)
B	PF28858	e4afxB01	A: a/b three-layered sandwiches	X: Rossmann-like	H: P-loop domains-related	T: ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase	F: PF28858	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.497.10	Alpha Beta	2-Layer Sandwich	Antithrombin	Chain I, domain 2	CATH (4.3.0)
A	2.30.39.10	Mainly Beta	Roll	Alpha-1-antitrypsin	domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	PROTEIN Z DEPENDENT PROTEASE INHIBITOR	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 heparin binding glycosaminoglycan binding binding carbohydrate derivative binding sulfur compound binding	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	membrane-bounded organelle intracellular anatomical structure membrane-enclosed lumen intracellular membrane-bounded organelle endomembrane system intracellular organelle lumen endoplasmic reticulum lumen intracellular organelle cellular anatomical structure organelle lumen organelle endoplasmic reticulum cytoplasm extracellular region membrane-bounded organelle intracellular anatomical structure membrane-enclosed lumen intracellular membrane-bounded organelle endomembrane system intracellular organelle lumen endoplasmic reticulum lumen intracellular organelle cellular anatomical structure organelle lumen organelle endoplasmic reticulum cytoplasm extracellular region extracellular space extracellular exosome extracellular vesicle extracellular organelle vesicle extracellular membrane-bounded organelle
B	PROTEIN Z DEPENDENT PROTEASE INHIBITOR	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 heparin binding glycosaminoglycan binding binding carbohydrate derivative binding sulfur compound binding	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	membrane-bounded organelle intracellular anatomical structure membrane-enclosed lumen intracellular membrane-bounded organelle endomembrane system intracellular organelle lumen endoplasmic reticulum lumen intracellular organelle cellular anatomical structure organelle lumen organelle endoplasmic reticulum cytoplasm extracellular region membrane-bounded organelle intracellular anatomical structure membrane-enclosed lumen intracellular membrane-bounded organelle endomembrane system intracellular organelle lumen endoplasmic reticulum lumen intracellular organelle cellular anatomical structure organelle lumen organelle endoplasmic reticulum cytoplasm extracellular region extracellular space extracellular exosome extracellular vesicle extracellular organelle vesicle extracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR042178	Serpin superfamily, domain 1	Homologous Superfamily
A	IPR042185	Serpin superfamily, domain 2	Homologous Superfamily
A	IPR036186	Serpin superfamily	Homologous Superfamily
A	IPR033835	Protein Z-dependent peptidase inhibitor, serpin domain	Domain
A	IPR000215	Serpin family	Family
A	IPR023796	Serpin domain	Domain
B	IPR042178	Serpin superfamily, domain 1	Homologous Superfamily
B	IPR042185	Serpin superfamily, domain 2	Homologous Superfamily
B	IPR036186	Serpin superfamily	Homologous Superfamily
B	IPR033835	Protein Z-dependent peptidase inhibitor, serpin domain	Domain
B	IPR000215	Serpin family	Family
B	IPR023796	Serpin domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q9UK55	thrombophilia Venous Thrombosis alcoholic liver cirrhosis cerebrovascular disorder endogenous depression ovarian cancer autism spectrum disorder gallbladder disease pancreatic ductal adenocarcinoma autoimmune disease diabetes mellitus heart disease
B	Pharos: Q9UK55	thrombophilia Venous Thrombosis alcoholic liver cirrhosis cerebrovascular disorder endogenous depression ovarian cancer autism spectrum disorder gallbladder disease pancreatic ductal adenocarcinoma autoimmune disease diabetes mellitus heart disease

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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.