Anti-HSF4 antibodies are used in the immunodetection of the protein heat shock transcription factor 4. In humans, the canonical protein has a reported length of 492 amino acid residues and a mass of 53 kDa. Its subcellular localization is in the nucleus. Up to 2 different isoforms have been reported for this protein. It is found to be expressed in the heart, skeletal muscle, eye and brain, and at much lower levels in some other tissues. A member of the HSF protein family, HSF4 is known to be involved with lens fiber cell differentiation and the regulation of transcription. Post-translational modifications have been described, including phosphorylation. Synonyms for this target antigen include CTRCT5, heat shock factor protein 4, HSTF 4, hHSF4, and CTM. HSF4 gene orthologs have been reported in the mouse, rat, bovine, frog, chimpanzee and chicken species. Some HSF4 antibodies may have been used in research and have associated citations. Western Blot is a widely used application for these antibodies. In addition, ELISA is also a common application.