HSF4 is a symbol for the gene, Heat shock transcription factor 4, in humans. Other names include: Heat shock factor protein 4; HSF 4; hHSF4; HSTF 4; CTM; CTRCT5. The encoded protein has an amino acid length of 492 and a mass of 53.0 kDa. Other isoforms may exist. HSF4 is a member of the HSF family. This gene shares homology with other species, including: Mouse, Rat, Arabidopsis, Zebrafish, Frog, Chicken.