Ready-to-use ELISA kits are available for the detection of Leucine-Rich Repeat-Containing G Protein-Coupled Receptor 4, an alias of the protein, leucine rich repeat containing G protein-coupled receptor 4. The official gene symbol is LGR4. The protein, with a mass of 104.5 kDa and length of 951 residues, is reported to be membrane-associated. It is a member of the G-protein coupled receptor 1 family and may be known by other names, including: GPR48, BNMD17, and G protein-coupled receptor 48.