Anti-serine and arginine-rich splicing factor 5 antibodies are protein reagents that detect specific antigens. The serine and arginine-rich splicing factor 5 antigen is another term for the human protein serine and arginine rich splicing factor 5, encoded by the SRSF5 gene. The protein is reported to play a role in constitutive splicing and can modulate the selection of alternative splice sites. Canonically, it has an amino acid length of 272 residues and a mass of 31.3 kilodaltons. Its subcellular localization is in the nucleus and it is widely expressed in many tissue types. The serine and arginine-rich splicing factor 5 protein is a member of the Splicing factor SR protein family.