Anti-YJU2 antibodies are used in the immunodetection of the protein YJU2 splicing factor homolog. In humans, the canonical protein has a reported length of 323 amino acid residues and a mass of 37.1 kDa. Its subcellular localization is in the nucleus. It is notably widely expressed in many tissue types. A member of the CWC16 protein family, YJU2 is known to be a part of the spliceosome which catalyzes two sequential transesterification reactions, first the excision of the non-coding intron from pre-mRNA and then the ligation of the coding exons to form the mature mRNA. Synonyms for this target antigen include coiled-coil domain containing 94, coiled-coil domain-containing protein 94, and splicing factor YJU2. YJU2 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species.