FEATURES

FAMILY

DESCRIPTION

Also known as TTL11_HUMAN, TTLL11, C9orf20. Polyglutamylase which modifies tubulin, generating polyglutamate side chains of variable lengths on the gamma-carboxyl group of specific glutamate residues within the C-terminal tail of tubulin. Preferentially mediates ATP-dependent polyglutamate long side-chain elongation over the initiation step of the polyglutamylation reaction. Preferentially modifies the alpha-tubulin tail over a beta-tail (By similarity). Required for CCSAP localization to both spindle and cilia microtubules (PubMed:22493317). Promotes tubulin polyglutamylation which stimulates spastin/SPAST-mediated microtubule severing, thereby regulating microtubule functions (By similarity).

EXTERNAL LINKS

TTLL11

Tubulin polyglutamylase TTLL11

TTLL11

Molecular Synopsis