HUNK1, or Bromodomain containing 4, is a human gene encoded by BRD4. It may also be known as: Bromodomain-containing protein 4; Protein HUNK1; chromosome-associated protein; HUNKI; MCAP. The encoded protein has an amino acid length of 1362 and a mass of 152.2 kDa. Other isoforms may exist. Homologs of this gene exist in other organisms, including: Mouse, Rat, Zebrafish, Frog.