PTGIS Gene Summary [Human]

This gene encodes a member of the cytochrome P450 superfamily of enzymes. The cytochrome P450 proteins are monooxygenases which catalyze many reactions involved in drug metabolism and synthesis of cholesterol, steroids and other lipids. However, this protein is considered a member of the cytochrome P450 superfamily on the basis of sequence similarity rather than functional similarity. This endoplasmic reticulum membrane protein catalyzes the conversion of prostglandin H2 to prostacyclin (prostaglandin I2), a potent vasodilator and inhibitor of platelet aggregation. An imbalance of prostacyclin and its physiological antagonist thromboxane A2 contribute to the development of myocardial infarction, stroke, and atherosclerosis. [provided by RefSeq, Jul 2008]

Details

Type
Protein Coding
Official Symbol
PTGIS
Official Name
prostaglandin I2 synthase [Source:HGNC Symbol;Acc:HGNC:9603]
Ensembl ID
ENSG00000124212
Bio databases IDs NCBI: 5740 Ensembl: ENSG00000124212
Aliases prostaglandin I2 synthase, cytochrome P450, family 8, subfamily A, polypeptide 1, prostacyclin synthase
Synonyms CYP8, CYP8A1, Pcs, PGI2 synthase, PGIS, PROSTACYCLIN, Prostacyclin synthase, prostaglandin I2 (prostacyclin) synthase, prostaglandin I2 synthase, PTGI
Species
Human, Homo sapiens
OrthologiesMouse

Protein Domains

A protein domain is a distinct structural or functional region within a protein that can evolve, function, and exist independently of the rest of the protein chain. These domains in human PTGIS often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • cytochrome P450 (CYP) superfamily
  • Cytochrome P450
  • prostaglandin-I synthase
  • enzyme
  • protein binding
  • heme binding

Pathways

Biological processes and signaling networks where the PTGIS gene in human plays a role, providing insight into its function and relevance in health or disease.

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
disease
  • neoplasia
  • epithelial cancer
  • liver cancer
  • COVID-19
  • bipolar disorder
  • schizophrenia
  • cervical posterior longitudinal ligament ossification
  • lung cancer
  • organismal death
  • endometriosis
regulated by
regulates
role in cell
  • expression in
  • cell viability
  • apoptosis
  • activation in
  • proliferation
  • oxidation in
  • production in
  • transactivation in
  • migration
  • invasion by

Subcellular Expression

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
  • Cytoplasm
  • Extracellular Space
  • Nucleus
  • Endoplasmic Reticulum
  • endoplasmic reticulum membrane
  • endoplasmic reticulum lumen
  • microsome
  • caveolae

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the human PTGIS gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • positive regulation of peroxisome proliferator activated receptor signaling pathway
  • negative regulation of NF-kappaB transcription factor activity
  • negative regulation of inflammatory response
  • icosanoid metabolic process
  • apoptotic signaling pathway
  • positive regulation of execution phase of apoptosis
  • positive regulation of angiogenesis
  • negative regulation of nitric oxide biosynthetic process
  • cyclooxygenase pathway
  • cellular response to interleukin-6
  • prostaglandin biosynthetic process
  • cellular response to interleukin-1
  • NAD biosynthesis via nicotinamide riboside salvage pathway
  • cellular response to hypoxia

Cellular Component

Where in the cell the gene product is active
  • endoplasmic reticulum membrane
  • nucleus
  • extracellular space
  • caveola
  • endoplasmic reticulum

Molecular Function

What the gene product does at the molecular level
  • protein binding
  • iron ion binding
  • oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen
  • monooxygenase activity
  • heme binding
  • prostaglandin-I synthase activity

Gene-Specific Assays for Results You Can Trust

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