Anti-Prosaposin-Like 1 antibodies enable researchers to detect and measure the Prosaposin-Like 1 antigen in biological samples. This target is a reported synonym of the PSAPL1 gene, which encodes prosaposin like 1. This protein is known to function in the metabolism of lipids, among other biological roles. The human version of Prosaposin-Like 1 has a canonical amino acid length of 521 residues and a protein mass of 56.6 kilodaltons. It is reported to be a secreted protein that is notably expressed in the tonsil, testis, stomach, and skin.