FUNCTION: Metallocarboxypeptidase that mediates deglutamylation of tubulin and non-tubulin target proteins. Catalyzes the removal of polyglutamate side chains present on the gamma-carboxyl group of glutamate residues within the C-terminal tail of tubulin protein. Specifically cleaves tubulin long-si...
                        FUNCTION: Metallocarboxypeptidase that mediates deglutamylation of tubulin and non-tubulin target proteins. Catalyzes the removal of polyglutamate side chains present on the gamma-carboxyl group of glutamate residues within the C-terminal tail of tubulin protein. Specifically cleaves tubulin long-side-chains, while it is not able to remove the branching point glutamate. Also catalyzes the removal of polyglutamate residues from the carboxy-terminus of non-tubulin proteins such as MYLK. May catalyze the hydrolysis of aspartate from the carboxy-terminus of target proteins. Does not show detyrosinase or deglycylase activities from the carboxy-terminus of target proteins. {ECO:0000250|UniProtKB:Q8CDP0}.; FUNCTION: [Isoform 2]: Metallocarboxypeptidase that mediates tubulin deglutamylation. {ECO:0000269|PubMed:25103237}.
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                        GO - Biological processes (BP): 
                        protein side chain deglutamylation [GO:0035610]...
                        protein side chain deglutamylation [GO:0035610]
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                        GO - Molecular function (MF): 
                        metallocarboxypeptidase activity [GO:0004181]; zinc ion binding [GO:0008270]...
                        metallocarboxypeptidase activity [GO:0004181]; zinc ion binding [GO:0008270]
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                        GO - Cellular component (CC): 
                        cytosol [GO:0005829]...
                        cytosol [GO:0005829]
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