ASF is a reported alias of the human protein 'serine and arginine rich splicing factor 1', encoded by the gene SRSF1. Anti-ASF antibodies are available from several suppliers. The full protein is reported to be 248 amino acid residues in length. Based on antigen name, there may be fly, canine, porcine, monkey, mouse and rat variants of this protein. See the antibody supplier page for important details, including specific immunogenicity and validated applications.