External Ids for PTAFR Gene
Previous GeneCards Identifiers for PTAFR Gene
This gene encodes a seven-transmembrane G-protein-coupled receptor for platelet-activating factor (PAF) that localizes to lipid rafts and/or caveolae in the cell membrane. PAF (1-0-alkyl-2-acetyl-sn-glycero-3-phosphorylcholine) is a phospholipid that plays a significant role in oncogenic transformation, tumor growth, angiogenesis, metastasis, and pro-inflammatory processes. Binding of PAF to the PAF-receptor (PAFR) stimulates numerous signal transduction pathways including phospholipase C, D, A2, mitogen-activated protein kinases (MAPKs), and the phosphatidylinositol-calcium second messenger system. Following PAFR activation, cells become rapidly desensitized and this refractory state is dependent on PAFR phosphorylation, internalization, and down-regulation. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2011]
GeneCards Summary for PTAFR Gene
PTAFR (Platelet-Activating Factor Receptor) is a Protein Coding gene. Diseases associated with PTAFR include melanoma metastasis. Among its related pathways are Immune System and Signaling by GPCR. GO annotations related to this gene include G-protein coupled receptor activity and lipopolysaccharide binding. An important paralog of this gene is P2RY2.
UniProtKB/Swiss-Prot for PTAFR Gene
Receptor for platelet activating factor, a chemotactic phospholipid mediator that possesses potent inflammatory, smooth-muscle contractile and hypotensive activity. Seems to mediate its action via a G protein that activates a phosphatidylinositol-calcium second messenger system.
Platelet-activating factor receptor (PAF-R) is a Gq/G11-coupled-protein receptor that has a role in a wide range of biological processes such as vasodilation, superoxide formation, cell proliferation, angiogenesis and regulation of the inflammatory response.