Annotations: 8ET0

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	Heme-dependent peroxidases	8038293	3000844	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	EGF/Laminin-like	8038309	3000412	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	EGF/Laminin-like	8038309	3000412	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Heme-dependent peroxidases	8038293	3000844	SCOP2B (2022-06-29)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
C, D	Heavy Chain	IGHV1	-	prostaglandin g/h synthase 2	SAbDab (2025-10-31)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00008	EGF-like domain (EGF)	EGF-like domain	There is no clear separation between noise and signal. Pfam:PF00053 is very similar, but has 8 instead of 6 conserved cysteines. Includes some cytokine receptors. The EGF domain misses the N-terminus regions of the Ca2+ binding EGF domains (this is t ...	There is no clear separation between noise and signal. Pfam:PF00053 is very similar, but has 8 instead of 6 conserved cysteines. Includes some cytokine receptors. The EGF domain misses the N-terminus regions of the Ca2+ binding EGF domains (this is the main reason of discrepancy between swiss-prot domain start/end and Pfam). The family is hard to model due to many similar but different sub-types of EGF domains. Pfam certainly misses a number of EGF domains.	Domain
A, B	PF03098	Animal haem peroxidase (An_peroxidase)	Animal haem peroxidase		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Prostaglandin G/H synthase 2	peroxidase activity oxidoreductase activity antioxidant activity oxidoreductase activity, acting on peroxide as acceptor catalytic activity identical protein binding protein binding binding protein homodimerization activity protein dimerization activity tetrapyrrole binding heme binding oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen prostaglandin-endoperoxide synthase activity peroxidase activity oxidoreductase activity antioxidant activity oxidoreductase activity, acting on peroxide as acceptor catalytic activity identical protein binding protein binding binding protein homodimerization activity protein dimerization activity tetrapyrrole binding heme binding oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen prostaglandin-endoperoxide synthase activity dioxygenase activity enzyme binding cation binding ion binding metal ion binding small molecule binding	developmental process epithelium development epidermal cell differentiation cellular developmental process epidermis development animal organ development tissue development epithelial cell differentiation skin development cell differentiation keratinocyte differentiation anatomical structure development cellular process multicellular organismal process developmental process epithelium development epidermal cell differentiation cellular developmental process epidermis development animal organ development tissue development epithelial cell differentiation skin development cell differentiation keratinocyte differentiation anatomical structure development cellular process multicellular organismal process system process circulatory system process regulation of blood pressure biological regulation regulation of biological quality blood circulation response to stimulus response to chemical response to selenium ion ossification bone mineralization biomineral tissue development regulation of biological process regulation of cellular process negative regulation of programmed cell death regulation of apoptotic process negative regulation of biological process regulation of programmed cell death cell death negative regulation of apoptotic process negative regulation of cellular process apoptotic process programmed cell death response to decreased oxygen levels cellular response to stimulus cellular response to oxygen levels cellular response to hypoxia cellular response to decreased oxygen levels cellular response to chemical stimulus cellular response to stress response to hypoxia response to stress response to oxygen levels response to abiotic stimulus icosanoid metabolic process prostaglandin metabolic process unsaturated fatty acid metabolic process oxoacid metabolic process lipid biosynthetic process organic acid biosynthetic process organic acid metabolic process carboxylic acid biosynthetic process prostanoid metabolic process icosanoid biosynthetic process small molecule metabolic process prostaglandin biosynthetic process prostanoid biosynthetic process fatty acid metabolic process monocarboxylic acid biosynthetic process small molecule biosynthetic process carboxylic acid metabolic process primary metabolic process fatty acid biosynthetic process unsaturated fatty acid biosynthetic process biosynthetic process metabolic process monocarboxylic acid metabolic process lipid metabolic process prostaglandin transport transport signaling cell communication localization secretion by cell monocarboxylic acid transport fatty acid transport icosanoid transport signal release prostaglandin secretion icosanoid secretion organic anion transport carboxylic acid transport secretion cell-cell signaling export from cell lipid localization lipid transport establishment of localization organic acid transport lipid export from cell macromolecule localization response to osmotic stress cellular response to non-ionic osmotic stress response to non-ionic osmotic stress cellular response to chemical stress cellular response to osmotic stress cellular response to environmental stimulus cellular response to abiotic stimulus regulation of defense response regulation of response to external stimulus defense response regulation of inflammatory response response to external stimulus regulation of response to stimulus regulation of response to stress regulation of neuroinflammatory response inflammatory response neuroinflammatory response biological process involved in interspecies interaction between organisms response to other organism response to external biotic stimulus response to nematode response to biotic stimulus multicellular organism development multi-multicellular organism process reproductive process female pregnancy embryo implantation multi-organism reproductive process regulation of lipid metabolic process regulation of primary metabolic process positive regulation of metabolic process regulation of small molecule metabolic process positive regulation of lipid metabolic process positive regulation of prostaglandin biosynthetic process regulation of ketone metabolic process regulation of fatty acid metabolic process regulation of fatty acid biosynthetic process positive regulation of unsaturated fatty acid biosynthetic process regulation of metabolic process regulation of prostaglandin biosynthetic process ketone metabolic process regulation of unsaturated fatty acid biosynthetic process positive regulation of biological process positive regulation of fatty acid biosynthetic process positive regulation of biosynthetic process positive regulation of cellular process positive regulation of fatty acid metabolic process regulation of biosynthetic process positive regulation of lipid biosynthetic process regulation of lipid biosynthetic process positive regulation of small molecule metabolic process response to fluid shear stress cellular response to fluid shear stress regulation of cellular response to stress regulation of signal transduction intracellular signal transduction regulation of response to osmotic stress regulation of cellular response to osmotic stress negative regulation of apoptotic signaling pathway signal transduction intrinsic apoptotic signaling pathway regulation of intrinsic apoptotic signaling pathway in response to osmotic stress intrinsic apoptotic signaling pathway in response to osmotic stress regulation of apoptotic signaling pathway negative regulation of signaling negative regulation of intracellular signal transduction regulation of intrinsic apoptotic signaling pathway negative regulation of cell communication regulation of intracellular signal transduction negative regulation of intrinsic apoptotic signaling pathway in response to osmotic stress regulation of signaling negative regulation of response to stimulus negative regulation of signal transduction apoptotic signaling pathway negative regulation of intrinsic apoptotic signaling pathway regulation of cell communication placenta development maternal process involved in female pregnancy multicellular organismal reproductive process developmental process involved in reproduction maternal placenta development decidualization fat cell differentiation positive regulation of brown fat cell differentiation positive regulation of fat cell differentiation regulation of developmental process regulation of cell differentiation regulation of brown fat cell differentiation positive regulation of developmental process positive regulation of cell differentiation brown fat cell differentiation regulation of fat cell differentiation cell population proliferation regulation of cell population proliferation arachidonate metabolic process long-chain fatty acid metabolic process cyclooxygenase pathway olefinic compound metabolic process response to oxidative stress acute-phase response regulation of heat generation homeostatic process positive regulation of heat generation positive regulation of acute inflammatory response heat generation positive regulation of response to stimulus positive regulation of response to external stimulus positive regulation of inflammatory response positive regulation of fever generation regulation of multicellular organismal process acute inflammatory response fever generation multicellular organismal-level homeostasis positive regulation of defense response temperature homeostasis regulation of acute inflammatory response positive regulation of multicellular organismal process regulation of fever generation	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol membrane-bounded organelle organelle subcompartment membrane intracellular membrane-bounded organelle endomembrane system endoplasmic reticulum subcompartment intracellular organelle organelle nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum cellular anatomical structure intracellular anatomical structure cytoplasm cytosol membrane-bounded organelle organelle subcompartment membrane intracellular membrane-bounded organelle endomembrane system endoplasmic reticulum subcompartment intracellular organelle organelle nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum organelle membrane endoplasmic reticulum membrane cell projection neuron projection plasma membrane bounded cell projection nuclear outer membrane nuclear membrane nucleus organelle outer membrane organelle envelope bounding membrane of organelle nuclear envelope outer membrane organelle inner membrane nuclear inner membrane
C, D	anti-cox-2 alpaca nanobody F9	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR019791	Haem peroxidase, animal-type	Family
A, B	IPR000742	EGF-like domain	Domain
A, B	IPR050783	Oxylipin biosynthesis and metabolism	Family
A, B	IPR037120	Haem peroxidase domain superfamily, animal type	Homologous Superfamily
A, B	IPR010255	Haem peroxidase superfamily	Homologous Superfamily

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.