Upstream binding transcription factor, RNA polymerase I is a reported alias of the human protein 'upstream binding transcription factor', encoded by the gene UBTF. Anti-Upstream binding transcription factor, RNA polymerase I antibodies are available from several suppliers. The full protein is reported to be 764 amino acid residues in length. Based on antigen name, there may be canine, porcine, monkey, mouse and rat variants of this protein. See the antibody supplier page for important details, including specific immunogenicity and validated applications.