The GPR44 ELISA kits listed below utilize specific antibodies for the plate-based assay of GPR44 in various samples. GPR44 is another term for the PTGDR2 gene, which encodes the protein, prostaglandin D2 receptor 2 in humans. It has been reported that GPR44 plays a role in chemotaxis and GPCR signaling pathways, among other functions. Structurally, the PTGDR2 protein is described to be 395 amino acid residues in length and 43.3 kilodaltons in mass. It is localized to the cell membrane of the cell. In terms of tissue specificity, it is reported to be widely expressed across many tissue types. This protein is known to be phosphorylated and glycosylated. Other names for this target antigen include CD294, CD294, and CRTH2.