The GPR81 ELISA kits listed below are analytical tools for measuring concentrations of GPR81 in various samples. GPR81 is an alternative name for the human HCAR1 gene, which encodes the protein, hydroxycarboxylic acid receptor 1. It has been mentioned that GPR81 plays a role in GPCR signaling pathways and the metabolism of lipids, among other functions. Structurally, the HCAR1 protein is described to be 346 amino acid residues in length and 39.3 kilodaltons in mass. It is localized to the cell membrane of the cell. In terms of tissue specificity, it is noted to be expressed abundantly in brown and white fat. This protein is known to be glycosylated. Other names for this target antigen include FKSG80 and GPR104. Click on the following ELISA kits for more detailed information, including target reactivity and assay sensitivity.