Anti-small nuclear ribonucleoprotein 25kDa (U11/U12) antibodies enable researchers to detect and measure the small nuclear ribonucleoprotein 25kDa (U11/U12) antigen in biological samples. This target is a reported synonym of the SNRNP25 gene, which encodes small nuclear ribonucleoprotein U11/U12 subunit 25. This protein is known to function in RNA splicing, among other biological roles. The human version of small nuclear ribonucleoprotein 25kDa (U11/U12) has a canonical amino acid length of 132 residues and a protein mass of 15.3 kilodaltons. It is reported to be localized in the nucleus of cells. Other names for this target antigen include U11/U12 small nuclear ribonucleoprotein 25 kDa protein, U11/U12 snRNP 25 kDa protein, and U11/U12 snRNP 25K.