Anti-aminopeptidase-like 1 antibodies enable researchers to detect and measure the aminopeptidase-like 1 antigen in biological samples. This target is a reported synonym of the NPEPL1 gene, which encodes aminopeptidase like 1. This protein is known to function in proteolysis, among other biological roles. The human version of aminopeptidase-like 1 has a canonical amino acid length of 523 residues and a protein mass of 55.9 kilodaltons, although 5 isoforms have been identified. It is reported to be widely expressed in many tissue types. aminopeptidase-like 1 is a member of the Peptidase M17 protein family.