SUPT4h is an alias for the gene, SPT4 homolog, DSIF elongation factor subunit, in humans. Other names include: Transcription elongation factor SPT4; DRB sensitivity-inducing factor 14 kDa subunit; DSIF p14; DRB sensitivity-inducing factor small subunit; DSIF small subunit; hSPT4; SPT4; SPT4H; SUPT4H; suppressor of Ty 4 homolog 1 (S. cerevisiae). The encoded protein has an amino acid length of 117 and a mass of 13.2 kDa. Other isoforms may exist. SUPT4h is a member of the SPT4 family. This gene shares homology with other species, including: Mouse, Rat, Zebrafish, Frog, Chicken.