Anti-Atp6i antibodies enable researchers to detect and measure the Atp6i antigen in biological samples. This target is a reported synonym of the TCIRG1 gene, which encodes T cell immune regulator 1, ATPase H+ transporting V0 subunit a3. This protein is known to function in the apoptotic pathway and B cell differentiation, among other biological roles. The human version of Atp6i has a canonical amino acid length of 830 residues and a protein mass of 93 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the membrane of cells and widely expressed in many tissue types. Other names for this target antigen include ATP6N1C and ATP6V0A3. Indicated applications for Atp6i antibodies listed below include ELISA and Western Blot.