TTLL11 is a symbol for the gene, Tubulin tyrosine ligase like11, in humans. Other names include: Tubulin polyglutamylase TTLL11; Tubulin polyglutamylase TTLL11 ; Tubulin--tyrosine ligase-like protein 11; C9orf20; bA244O19.1; tubulin tyrosine ligase-like family member 11. The encoded protein is an enzyme with an amino acid length of 800 and a mass of 87.6 kDa. Other isoforms may exist. TTLL11 is a member of the Tubulin--tyrosine ligase family. This gene shares homology with other species, including: Mouse, Rat, Zebrafish, Frog, Chicken.