BBBG1 is an alias for the gene, Midline 1, in humans. Other names include: E3 ubiquitin-protein ligase Midline-1; Midin; Putative transcription factor XPRF; RING finger protein 59; RING finger protein Midline-1; Tripartite motif-containing protein 18; E3 ubiquitin-protein ligase Midline-1 ; Opitz/BBB syndrome; FXY; GBBB1; OGS1; OS; RNF59; TRIM18; XPRF; ZNFXY. The encoded protein is an enzyme with an amino acid length of 667 and a mass of 75.3 kDa. BBBG1 is a member of the TRIM/RBCC family. This gene shares homology with other species, including: Mouse, Rat, Frog.