Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
Ad5coxa1 All alpha proteins Heme-dependent peroxidases Heme-dependent peroxidases Myeloperoxidase-like Prostaglandin H2 synthase house mouse (Mus musculus ) [TaxId: 10090 ], SCOPe (2.08)
Ad5coxa2 Small proteins Knottins (small inhibitors, toxins, lectins) EGF/Laminin EGF-type module Prostaglandin H2 synthase-1, EGF-like module house mouse (Mus musculus ) [TaxId: 10090 ], SCOPe (2.08)
Cd5coxc1 All alpha proteins Heme-dependent peroxidases Heme-dependent peroxidases Myeloperoxidase-like Prostaglandin H2 synthase house mouse (Mus musculus ) [TaxId: 10090 ], SCOPe (2.08)
Cd5coxc2 Small proteins Knottins (small inhibitors, toxins, lectins) EGF/Laminin EGF-type module Prostaglandin H2 synthase-1, EGF-like module house mouse (Mus musculus ) [TaxId: 10090 ], SCOPe (2.08)
Bd5coxb1 All alpha proteins Heme-dependent peroxidases Heme-dependent peroxidases Myeloperoxidase-like Prostaglandin H2 synthase house mouse (Mus musculus ) [TaxId: 10090 ], SCOPe (2.08)
Bd5coxb2 Small proteins Knottins (small inhibitors, toxins, lectins) EGF/Laminin EGF-type module Prostaglandin H2 synthase-1, EGF-like module house mouse (Mus musculus ) [TaxId: 10090 ], SCOPe (2.08)
Dd5coxd1 All alpha proteins Heme-dependent peroxidases Heme-dependent peroxidases Myeloperoxidase-like Prostaglandin H2 synthase house mouse (Mus musculus ) [TaxId: 10090 ], SCOPe (2.08)
Dd5coxd2 Small proteins Knottins (small inhibitors, toxins, lectins) EGF/Laminin EGF-type module Prostaglandin H2 synthase-1, EGF-like module house mouse (Mus musculus ) [TaxId: 10090 ], SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyHeme-dependent peroxidases 8038293 3000844 SCOP2B (2022-06-29)
ASCOP2B SuperfamilyEGF/Laminin-like 8038309 3000412 SCOP2B (2022-06-29)
CSCOP2B SuperfamilyEGF/Laminin-like 8038309 3000412 SCOP2B (2022-06-29)
CSCOP2B SuperfamilyHeme-dependent peroxidases 8038293 3000844 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyHeme-dependent peroxidases 8038293 3000844 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyEGF/Laminin-like 8038309 3000412 SCOP2B (2022-06-29)
DSCOP2B SuperfamilyEGF/Laminin-like 8038309 3000412 SCOP2B (2022-06-29)
DSCOP2B SuperfamilyHeme-dependent peroxidases 8038293 3000844 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AAn_peroxidasee5coxA1 A: alpha complex topologyX: Heme-dependent peroxidases (From Topology)H: Heme-dependent peroxidases (From Topology)T: Heme-dependent peroxidasesF: An_peroxidaseECOD (1.6)
AhEGF_4e5coxA2 A: few secondary structure elementsX: EGF-likeH: EGF-relatedT: EGF/LamininF: hEGF_4ECOD (1.6)
CAn_peroxidasee5coxC1 A: alpha complex topologyX: Heme-dependent peroxidases (From Topology)H: Heme-dependent peroxidases (From Topology)T: Heme-dependent peroxidasesF: An_peroxidaseECOD (1.6)
ChEGF_4e5coxC2 A: few secondary structure elementsX: EGF-likeH: EGF-relatedT: EGF/LamininF: hEGF_4ECOD (1.6)
BAn_peroxidasee5coxB1 A: alpha complex topologyX: Heme-dependent peroxidases (From Topology)H: Heme-dependent peroxidases (From Topology)T: Heme-dependent peroxidasesF: An_peroxidaseECOD (1.6)
BhEGF_4e5coxB2 A: few secondary structure elementsX: EGF-likeH: EGF-relatedT: EGF/LamininF: hEGF_4ECOD (1.6)
DAn_peroxidasee5coxD1 A: alpha complex topologyX: Heme-dependent peroxidases (From Topology)H: Heme-dependent peroxidases (From Topology)T: Heme-dependent peroxidasesF: An_peroxidaseECOD (1.6)
DhEGF_4e5coxD2 A: few secondary structure elementsX: EGF-likeH: EGF-relatedT: EGF/LamininF: hEGF_4ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B, C, D
PF00008EGF-like domain (EGF)EGF-like domainThere 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, C, D
PF03098Animal haem peroxidase (An_peroxidase)Animal haem peroxidase- Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B, C, D
CYCLOOXYGENASE-2

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

ChainsEnzyme NameDescriptionCatalytic Residues
prostaglandin-endoperoxide synthase  M-CSA #37

Converts arachidonate to prostaglandin H2 (PGH2), a committed step in prostanoid synthesis. Constitutively expressed in some tissues in physiological conditions, such as the endothelium, kidney and brain, and in pathological conditions, such as in cancer. PTGS2 is responsible for production of inflammatory prostaglandins. Up-regulation of PTGS2 is also associated with increased cell adhesion, phenotypic changes, resistance to apoptosis and tumor angiogenesis. In cancer cells, PTGS2 is a key step in the production of prostaglandin E2 (PGE2), which plays important roles in modulating motility, proliferation and resistance to apoptosis.

Production of prostaglandin hormones in vertebrates depends on this enzyme, which couples the reduction of dangerous hydroperoxides to the generation of a useful oxidised product. The cofactor which makes this possible is a single iron protoporphyrin IX; its interactions with protein ligands are essential for modulating protein function.

Defined by 7 residues: GLN:A-172 [auth A-203]HIS:A-176 [auth A-207]LEU:A-353 [auth A-384]TYR:A-354 [auth A-385]HIS:A-357 [auth A-388]GLY:A-495 [auth A-526]SER:A-499 [auth A-530]
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