CD283, or Toll-like receptor 3, is a human gene encoded by TLR3. It may also be known as: CD antigen CD283; IIAE2. The encoded protein has an amino acid length of 904 and a mass of 103.8 kDa. Other isoforms may exist. CD283 is a member of the Toll-like receptor family. Homologs of this gene exist in other organisms, including: Mouse, Rat, Zebrafish, Frog, Chicken.