Anti-serine and arginine-rich splicing factor 2 antibodies are protein reagents that detect specific antigens. The serine and arginine-rich splicing factor 2 antigen is another term for the human protein serine and arginine rich splicing factor 2, encoded by the SRSF2 gene. The protein is known to be important for the splicing of pre-mRNA. Canonically, it has an amino acid length of 221 residues and a mass of 25.5 kilodaltons. Its subcellular localization is in the nucleus and it is widely expressed in many tissue types. The serine and arginine-rich splicing factor 2 protein is a member of the Splicing factor SR protein family.