Anti-Tat-SF1 antibodies are protein reagents that detect specific antigens. The Tat-SF1 antigen is another term for the human protein HIV-1 Tat specific factor 1, encoded by the HTATSF1 gene. The protein is known to function as a general transcription factor playing a role in the process of transcriptional elongation. Canonically, it has an amino acid length of 755 residues and a mass of 85.9 kilodaltons. Its subcellular localization is in the nucleus and it is widely expressed across many tissue types. The Tat-SF1 protein is a member of the HTATSF1 protein family. Indicated applications for Tat-SF1 antibodies listed below include ELISA, Western Blot, Immunofluorescence, and Immunohistochemistry.