GPR44 Antibody – Rabbit Polyclonal

This gene encodes a G-protein-coupled receptor that is preferentially expressed in CD4+ effector T helper 2 (Th2) cells. This protein is a prostaglandin D2 receptor that mediates the pro-inflammatory chemotaxis of eosinophils, basophils, and Th2 lymphocytes generated during allergic inflammation. Single nucleotide polymorphisms in the 3' UTR of this gene have been associated with asthma susceptibility.

GPR44: Receptor for prostaglandin D2 (PGD2). Coupled to the G(i)-protein. Receptor activation may result in pertussis toxin- sensitive decreases in cAMP levels and Ca(2+) mobilization. PI3K signaling is also implicated in mediating PTGDR2 effects. PGD2 induced receptor internalization. CRTH2 internalization can be regulated by diverse kinases such as, PKC, PKA, ADRBK1/GRK2, GPRK5/GRK5 and GRK6. Receptor activation is responsible, at least in part, in immune regulation and allergic/inflammation responses. Belongs to the G-protein coupled receptor 1 family.

Protein type: GPCR, family 1; Membrane protein, multi-pass; Receptor, GPCR; Membrane protein, integral

Chromosomal Location of Human Ortholog: 11q12-q13.3

Cellular Component: neuron projection; integral to plasma membrane; plasma membrane

Molecular Function: G-protein coupled receptor activity; neuropeptide binding; prostaglandin F receptor activity; prostaglandin J receptor activity; prostaglandin D receptor activity

Biological Process: synaptic transmission; G-protein signaling, coupled to cyclic nucleotide second messenger; G-protein coupled receptor protein signaling pathway; neuropeptide signaling pathway; positive regulation of G-protein coupled receptor protein signaling pathway; calcium-mediated signaling; immune response; G-protein signaling, adenylate cyclase inhibiting pathway; chemotaxis