Anti-proline rich Gla (G-carboxyglutamic acid) 1 antibodies enable researchers to detect and measure the proline rich Gla (G-carboxyglutamic acid) 1 antigen in biological samples. This target is a reported synonym of the PRRG1 gene, which encodes proline rich and Gla domain 1. The human version of proline rich Gla (G-carboxyglutamic acid) 1 has a canonical amino acid length of 218 residues and a protein mass of 24.9 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the membrane of cells. Other names for this target antigen include PRGP1, transmembrane gamma-carboxyglutamic acid protein 1, and proline rich Gla (G-carboxyglutamic acid) 1.