Anti-GPR109A/HCAR2 (extracellular)

IFC, IHC, LCI, WB

Hydroxycarboxylic Acid Receptor 2, Niacin Receptor 1, G-Protein Coupled Receptor HM74A, HM74A, Nicotinic acid receptor, PUMAG

Shipped at room temperature. Product as supplied can be stored intact at room temperature for several weeks. For longer periods, it should be stored at -20°C

Lyophilized powder. Reconstituted antibody contains phosphate buffered saline (PBS), pH 7.4

Hydroxycarboxylic Acid Receptor 2, Niacin Receptor 1, G-Protein Coupled Receptor HM74A, HM74A, Nicotinic acid receptor, PUMAG - A Rabbit Polyclonal antibody to GPR109A/HCAR2 (extracellular)

Rat - 11 out of 13 amino acid residues identical; Human - 9 out of 13 amino acid residues identical Note: it is not expected to recognize the highly homologous human protein HCAR3 (Accession P49019) HCAR3 has no mouse or rat orthologs

Confirmed by amino acid analysis and mass spectrometry

0.8 mg/ml

Extracellular, 1st loop.

Mouse

41116161

Hydroxy-carboxylic acid receptors (HCA1-3) are a family of G-protein-coupled receptors that regulate lipolysis. HCAR2 (GPR109A) was identified as the receptor for nicotinic acid (niacin; vitamin B3) and beta-hyroxybutyrate (β-OHB), a ketone body synthesized by the liver under negative energy balance1.HCAR2 is mainly expressed on adipocytes and immune cells and in lower levels in retinal pigmented and colonic epithelial cells, microglia and normal mammary tissue. High levels of HCAR2 can be found in immune cells such as macrophages in response to the presence of interferon-γ, TNF-α and hypoxia2.HCAR2 activity in adipocytes promotes inhibition of adenylate cyclase and decrease cAMP levels. HCAR2 activity leads to a rapid decrease in lipolysis and reduction in the release of fatty acids from the adipocytes3.Activation of HCAR2 has also been associated with anti-inflammatory effects in different disease states such as sepsis, diabetes and obesity. Interaction of HCAR2 with niacin and β-OHB under this conditions lead to variety of signaling events involving inflammatory downstream targets4.