S1PR3
Sphingosine-1-phosphate receptor 3 (S1PR3) is a G protein-coupled receptor that binds the bioactive lipid sphingosine-1-phosphate (S1P). It is part of the sphingosine-1-phosphate receptor family, which plays a crucial role in various physiological processes.
Structure[edit]
S1PR3 is a member of the G protein-coupled receptor (GPCR) superfamily, characterized by seven transmembrane domains. The receptor is encoded by the S1PR3 gene located on chromosome 9q22.1. The protein structure allows it to interact with sphingosine-1-phosphate, a signaling molecule involved in numerous cellular functions.
Function[edit]
S1PR3 is involved in the regulation of several physiological processes, including:
- Vascular development and angiogenesis
- Immune cell trafficking
- Cardiovascular function
- Inflammatory response
The receptor mediates its effects through coupling with different G proteins, leading to the activation of various downstream signaling pathways.
Expression[edit]
S1PR3 is expressed in a variety of tissues, including the endothelial cells of blood vessels, smooth muscle cells, and immune cells. Its expression pattern suggests a role in both vascular and immune system functions.
Clinical Significance[edit]
Alterations in S1PR3 signaling have been implicated in several pathological conditions, such as:
Research is ongoing to develop therapeutic agents targeting S1PR3 for the treatment of these conditions.
See Also[edit]
External Links[edit]
| Glycoconjugates, lipids, and glycolipids: sphingolipids and glycosphingolipids, and metabolic intermediates | ||||||||||||||||||
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