Anti-SRY box 21 antibodies enable researchers to detect and measure the SRY box 21 antigen in biological samples. This target is a reported synonym of the SOX21 gene, which encodes SRY-box transcription factor 21. This protein is known to function in the morphogenesis of anatomical structure and cell differentiation, among other biological roles. The human version of SRY box 21 has a canonical amino acid length of 276 residues and a protein mass of 28.6 kilodaltons. It is reported to be localized in the nucleus of cells and notably expressed in the tonsil, kidney, and caudate. Other names for this target antigen include SOX25, SOX25, and transcription factor SOX-21. Indicated applications for SRY box 21 antibodies listed below include ELISA.