BBS4 is a symbol for the gene, Bardet-Biedl syndrome 4, in humans. Other names include: Bardet-Biedl syndrome 4 protein. The encoded protein has an amino acid length of 519 and a mass of 58.3 kDa. Other isoforms may exist. BBS4 is a member of the BBS4 family. This gene shares homology with other species, including: Fly, Mouse, Rat, Zebrafish, Frog, Chicken.