Anti-GARP antibodies enable researchers to detect and measure the GARP antigen in biological samples. This target is a reported synonym of the LRRC32 gene, which encodes leucine rich repeat containing 32. This protein is known to function in cytokine-mediated signaling pathways and the regulation of gene expression, among other biological roles. The human version of GARP has a canonical amino acid length of 662 residues and a protein mass of 72 kilodaltons. It is reported to be localized in the cell membrane of cells. GARP is a member of the LRRC32/LRRC33 protein family.