Anti-GUA antibodies enable researchers to detect and measure the GUA antigen in biological samples. This target is a reported synonym of the DDX21 gene, which encodes DExD-box helicase 21. This protein is known to function in chromatin remodeling and viral immune response, among other biological roles. The human version of GUA has a canonical amino acid length of 783 residues and a protein mass of 87.3 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the nucleus, mitochondria, and cytoplasm of cells and widely expressed in many tissue types. Other names for this target antigen include GURDB and II/Gu. Indicated applications for GUA antibodies listed below include ELISA, Western Blot, Immunocytochemistry, Immunofluorescence, Immunoprecipitation, and Immunohistochemistry.