TTL.6, or Tubulin tyrosine ligase like 6, is a human gene encoded by TTLL6. It may also be known as: Tubulin polyglutamylase TTLL6; Tubulin polyglutamylase TTLL6 ; Tubulin--tyrosine ligase-like protein 6; tubulin tyrosine ligase-like family member 6. The encoded protein is an enzyme with an amino acid length of 843 and a mass of 96.4 kDa. TTL.6 is a member of the Tubulin--tyrosine ligase family. Homologs of this gene exist in other organisms, including: Mouse, Rat, Zebrafish, Frog.