Anti-TSR3 ribosome maturation factor antibodies are used for the immunodetection of the protein encoded by the TSR3 gene. In humans, the canonical protein has a reported length of 312 amino acid residues and a mass of 33.6 kDa. Its subcellular localization is in the cytoplasm. A member of the TSR3 protein family, it is a reported aminocarboxypropyltransferase that catalyzes the aminocarboxypropyl transfer on pseudouridine at position 1248 (Psi1248) in 18S rRNA (Probable). Other names for this target antigen include 20S S rRNA accumulation protein 3 homolog, TSR3, 20S rRNA accumulation, homolog, TSR3, acp transferase ribosome maturation factor, and 18S rRNA aminocarboxypropyltransferase. Gene orthologs have been identified in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species.