BERP, or Tripartite motif containing 3, is a human gene encoded by TRIM3. It may also be known as: Tripartite motif-containing protein 3; RING finger protein 22; RING finger protein 97; Brain-expressed RING finger protein; brain expressed ring finger; tripartite motif protein TRIM3; HAC1; RNF22; RNF97. The encoded protein has an amino acid length of 744 and a mass of 80.8 kDa. BERP is a member of the TRIM/RBCC family. Homologs of this gene exist in other organisms, including: Mouse, Rat.