Anti-UL13 antibodies enable researchers to detect and measure the UL13 antigen in biological samples. This target is a reported synonym of the RPL13A gene, which encodes ribosomal protein L13a. This protein is known to function in protein translation, among other biological roles. The human version of UL13 has a canonical amino acid length of 203 residues and a protein mass of 23.6 kilodaltons. It is reported to be localized in the cytoplasm of cells and widely expressed in many tissue types. UL13 is a member of the Universal ribosomal protein uL13 protein family.