Anti-QTRT2 antibodies are used in the immunodetection of the protein queuine tRNA-ribosyltransferase accessory subunit 2. In humans, the canonical protein has a reported length of 415 amino acid residues and a mass of 46.7 kDa. Its subcellular localization is in the membrane, mitochondria, and cytoplasm. Up to 4 different isoforms have been reported for this protein. A member of the Queuine tRNA-ribosyltransferase protein family, QTRT2 is reported to be a non-catalytic subunit of the queuine tRNA-ribosyltransferase (TGT) that catalyzes the base-exchange of a guanine (G) residue with queuine (Q) at position 34 (anticodon wobble position) in tRNAs with GU(N) anticodons (tRNA-Asp, -Asn, -His and -Tyr), resulting in the hypermodified nucleoside queuosine (7-(((4,5-cis-dihydroxy-2-cyclopenten-1-yl)amino)methyl)-7-deazaguanosine). Synonyms for this target antigen include queuine tRNA-ribosyltransferase domain containing 1. Western Blot is the most common application for the QTRT2 antibodies listed below. ELISA, Immunocytochemistry, Immunofluorescence, and Immunohistochemistry are also common applications.