Anti-SRSF7 antibodies are used in the immunodetection of the protein serine and arginine rich splicing factor 7. In humans, the canonical protein has a reported length of 238 amino acid residues and a mass of 27.4 kDa. Its subcellular localization is in the nucleus and cytoplasm. Alternative splicing is reported to yield 4 different isoforms for this protein. A member of a the Splicing factor SR protein family, SRSF7 is said to be required for pre-mRNA splicing. Post-translational modifications have been described, including phosphorylation. Synonyms for this target antigen include AAG3, SFRS7, serine/arginine-rich splicing factor 7, SR splicing factor 7, aging-associated protein 3, and 9G8.