HuF2, or Transcription termination factor, RNA polymerase II, is a human gene encoded by TTF2. It may also be known as: Transcription termination factor 2; RNA polymerase II termination factor; Transcription release factor 2; Lodestar homolog; Transcription termination factor 2 ; zinc finger, GRF-type containing 6; ZGRF6. The encoded protein is an enzyme with an amino acid length of 1162 and a mass of 129.6 kDa. HuF2 is a member of the SNF2/RAD54 helicase family. Homologs of this gene exist in other organisms, including: Mouse, Rat, Zebrafish, Frog, Chicken.