Anti-S1P₁, C-Terminal antibody produced in rabbit

Sphingosine-1-phosphate receptor 1 (S1P receptor 1 or S1P1), also known as endothelial differentiation gene 1 (EDG1) is a protein encoded by the S1PR1 gene in humans. It is a bioactive sphingolipid present at high concentrations in plasma and lymphatic fluid. S1P plays a critical role in regulating lymphocyte trafficking mainly through sphingosine-1-phosphate receptor 1 (S1PR1). It is a blood-borne lysosphingolipid that acts to promote endothelial cell (EC) barrier function. In plasma, it is associated with both high density lipoproteins (HDL) and albumin.

synthetic peptide (approximately 2.5 kDa) derived from the C-terminal region of the EDG-1/S1P₁ receptor.

Anti-S1P₁, C-Terminal antibody produced in rabbit is suitable for western blotting at a working concentration of 5 to 10 μg/ml using RH7777 cells transfected with full-length EDG-1 receptor.

Sphingosine-1-phosphate (SPP) activates the heterotrimeric guanine nucleotide binding protein (G protein)-coupled orphan receptor EDG-1. EDG-1 is a high-affinity receptor for the bioactive lipid mediator SPP. It binds to SPP with high affinity and specificity. Overexpression of EDG-1 induces exaggerated cell-cell aggregation, enhances expression of cadherins and formation of well-developed adherens junctions. It is essential for lymphocyte egress from secondary lymphoid organs and acts as a validated drug target for the treatment of autoimmune diseases. Activated EDG-1 induces an immediate increase in intracellular calcium and is able to increase S1P1 phosphorylation.

Supplied in phosphate buffered saline, pH 7.3, containing 0.08% sodium azide.

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