4ZK3

Psoriasis pathogenesis - Pso p27 constitute a compact structure forming large aggregates. Low pH structure

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	d4zk3a_	Multi-domain proteins (alpha and beta)	Serpins	Serpins	automated matches	automated matches	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	Serpins	8070141	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	Serpin	e4zk3A1	A: a+b complex topology	X: Serpins (From Topology)	H: Serpins (From Topology)	T: Serpins	F: Serpin	ECOD (1.6)

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	Serpin B3	protein binding binding virus receptor activity exogenous protein binding enzyme regulator activity molecular function inhibitor activity peptidase regulator activity molecular function regulator activity enzyme inhibitor activity cysteine-type endopeptidase inhibitor activity peptidase inhibitor activity endopeptidase regulator activity endopeptidase inhibitor activity enzyme binding protein binding binding virus receptor activity exogenous protein binding enzyme regulator activity molecular function inhibitor activity peptidase regulator activity molecular function regulator activity enzyme inhibitor activity cysteine-type endopeptidase inhibitor activity peptidase inhibitor activity endopeptidase regulator activity endopeptidase inhibitor activity enzyme binding protease binding serine-type endopeptidase inhibitor activity	cellular response to stimulus regulation of cellular process response to stimulus regulation of catalytic activity negative regulation of biological process negative regulation of catalytic activity regulation of signal transduction regulation of transferase activity regulation of MAP kinase activity intracellular signal transduction regulation of primary metabolic process cell communication negative regulation of kinase activity negative regulation of transferase activity negative regulation of JNK cascade cellular response to stimulus regulation of cellular process response to stimulus regulation of catalytic activity negative regulation of biological process negative regulation of catalytic activity regulation of signal transduction regulation of transferase activity regulation of MAP kinase activity intracellular signal transduction regulation of primary metabolic process cell communication negative regulation of kinase activity negative regulation of transferase activity negative regulation of JNK cascade regulation of phosphate metabolic process JNK cascade phosphate-containing compound metabolic process intracellular signaling cassette negative regulation of protein modification process signal transduction phosphorus metabolic process protein modification process negative regulation of protein metabolic process regulation of biological process protein phosphorylation phosphorylation regulation of protein metabolic process negative regulation of metabolic process regulation of JNK cascade primary metabolic process regulation of MAPK cascade regulation of molecular function regulation of kinase activity regulation of response to stimulus negative regulation of protein phosphorylation regulation of protein serine/threonine kinase activity macromolecule modification regulation of phosphorus metabolic process metabolic process macromolecule metabolic process regulation of metabolic process regulation of protein modification process regulation of protein phosphorylation signaling negative regulation of signaling negative regulation of intracellular signal transduction negative regulation of phosphate metabolic process negative regulation of cell communication regulation of intracellular signal transduction negative regulation of protein serine/threonine kinase activity negative regulation of cellular process protein metabolic process negative regulation of JUN kinase activity negative regulation of macromolecule metabolic process regulation of signaling negative regulation of response to stimulus biological regulation negative regulation of molecular function negative regulation of MAP kinase activity regulation of protein kinase activity regulation of macromolecule metabolic process negative regulation of protein kinase activity negative regulation of signal transduction negative regulation of phosphorus metabolic process regulation of JUN kinase activity MAPK cascade regulation of cell communication regulation of phosphorylation cellular process negative regulation of phosphorylation negative regulation of MAPK cascade regulation of epithelial to mesenchymal transition multicellular organismal process regulation of developmental process cellular developmental process positive regulation of biological process positive regulation of epithelial to mesenchymal transition regulation of cell differentiation mesenchyme development positive regulation of developmental process positive regulation of cell differentiation cell differentiation anatomical structure development regulation of multicellular organismal process positive regulation of cellular process developmental process animal organ development tissue development epithelial to mesenchymal transition positive regulation of multicellular organismal process mesenchymal cell differentiation cell-cell signaling paracrine signaling negative regulation of proteolysis regulation of proteolysis proteolysis autocrine signaling cell population proliferation positive regulation of cell population proliferation regulation of cell population proliferation negative regulation of hydrolase activity negative regulation of endopeptidase activity negative regulation of peptidase activity regulation of endopeptidase activity regulation of peptidase activity regulation of hydrolase activity positive regulation of locomotion regulation of cell motility positive regulation of cell migration regulation of locomotion positive regulation of cell motility regulation of cell migration cell migration cell motility locomotion positive regulation of protein metabolic process positive regulation of peptidase activity positive regulation of molecular function positive regulation of metabolic process positive regulation of macromolecule metabolic process positive regulation of catalytic activity positive regulation of hydrolase activity positive regulation of endopeptidase activity positive regulation of proteolysis	membrane-bounded organelle cellular anatomical structure organelle vesicle extracellular exosome extracellular vesicle extracellular organelle extracellular region extracellular space extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm cytosol cell periphery membrane-bounded organelle cellular anatomical structure organelle vesicle extracellular exosome extracellular vesicle extracellular organelle extracellular region extracellular space extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm cytosol cell periphery plasma membrane membrane lytic vacuole intracellular vesicle membrane-enclosed lumen cytoplasmic vesicle lumen vacuolar lumen endomembrane system intracellular organelle lumen intracellular organelle cytoplasmic vesicle lysosome vesicle lumen azurophil granule vacuole intracellular membrane-bounded organelle secretory granule lumen azurophil granule lumen organelle lumen secretory granule primary lysosome secretory vesicle nucleus

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR023795	Serpin, conserved site	Conserved Site
A	IPR000215	Serpin family	Family
A	IPR036186	Serpin superfamily	Homologous Superfamily
A	IPR023796	Serpin domain	Domain
A	IPR042178	Serpin superfamily, domain 1	Homologous Superfamily
A	IPR042185	Serpin superfamily, domain 2	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: P29508	squamous cell carcinoma esophageal squamous cell carcinoma contact dermatitis esophageal cancer Precancerous Conditions cutaneous lupus erythematosus nasopharyngeal carcinoma oral cavity neoplasm psoriasis ulcerative colitis esophageal adenocarcinoma interstitial cystitis malignant pancreatic neoplasm neoplasm of esophagus precancerous condition squamous cell carcinoma esophageal squamous cell carcinoma contact dermatitis esophageal cancer Precancerous Conditions cutaneous lupus erythematosus nasopharyngeal carcinoma oral cavity neoplasm psoriasis ulcerative colitis esophageal adenocarcinoma interstitial cystitis malignant pancreatic neoplasm neoplasm of esophagus precancerous condition atopic eczema lung carcinoma non-small cell lung carcinoma

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.