Anti-GPR44 antibodies enable researchers to detect and measure the GPR44 antigen in biological samples. This target is a reported synonym of the PTGDR2 gene, which encodes prostaglandin D2 receptor 2. This protein is known to function in chemotaxis and GPCR signaling pathways, among other biological roles. The human version of GPR44 has a canonical amino acid length of 395 residues and a protein mass of 43.3 kilodaltons. It is reported to be localized in the cell membrane of cells. Other names for this target antigen include CD294, CD294, and CRTH2. ELISA, Western Blot, and Immunohistochemistry are common applications for GPR44 antibodies.