Anti-PHT2 antibodies enable researchers to detect and measure the PHT2 antigen in biological samples. This target is a reported synonym of the SLC15A3 gene, which encodes solute carrier family 15 member 3. This protein is known to function in innate immune responses and the transport of ions, among other biological roles. The human version of PHT2 has a canonical amino acid length of 581 residues and a protein mass of 63.6 kilodaltons. It is reported to be localized in the lysosomes of cells and notably expressed in the urinary bladder, spleen, lung, gallbladder, and bone marrow. Other names for this target antigen include OCTP and PTR3.