Suppressor of Ty 6 Homolog, or SPT6 homolog, histone chaperone, is a human gene encoded by SUPT6H. It may also be known as: Transcription elongation factor SPT6; Histone chaperone suppressor of Ty6; Tat-cotransactivator 2 protein; Tat-CT2 protein; hSPT6; SPT6; SPT6H; emb-5; suppressor of Ty 6 homolog (S. cerevisiae). The encoded protein has an amino acid length of 1726 and a mass of 199.1 kDa. Suppressor of Ty 6 Homolog is a member of the SPT6 family. Homologs of this gene exist in other organisms, including: Rat, Zebrafish, Frog, Chicken.