AGTPBP1 - Cytosolic carboxypeptidase 1 - human protein (Function)
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AGTPBP1 »  Cytosolic carboxypeptidase 1   [ EC 3.4.17.- ]
Protein also known as:  Nervous system nuclear protein induced by axotomy protein 1 homolog.
Gene name:  AGTPBP1
Family name: Peptidase M14
Entry whose protein(s) existence is based on evidence at protein level
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Metallocarboxypeptidase that mediates deglutamylation of target proteins. Catalyzes the deglutamylation of polyglutamate side chains generated by post-translational polyglutamylation in proteins such as tubulins. Also removes gene-encoded polyglutamates from the carboxy-terminus of target proteins such as MYLK. Acts as a long-chain deglutamylase and specifically shortens long polyglutamate chains, while it is not able to remove the branching point glutamate, a process catalyzed by AGBL5/CCP5 (By similarity).  
  • CuratedUniProtKB
GO molecular function 
Metallocarboxypeptidase activitydefinition[GO:0004181]  
  • ISSOrtholog Curator
Tubulin bindingdefinition[GO:0015631]  
  • ISSOrtholog Curator
Zinc ion bindingdefinition[GO:0008270] silver  
  • IEAInterPro 2 GO
GO biological process 
Adult walking behaviordefinition[GO:0007628] silver  
  • IEAOrtholog Compara
C-terminal protein deglutamylationdefinition[GO:0035609]  
  • ISSOrtholog Curator
Cerebellar Purkinje cell differentiationdefinition[GO:0021702]  
  • ISSOrtholog Curator
Eye photoreceptor cell differentiationdefinition[GO:0001754]  
  • ISSOrtholog Curator
Mitochondrion organizationdefinition[GO:0007005]  
  • ISSOrtholog Curator
Neuromuscular processdefinition[GO:0050905]  
  • ISSOrtholog Curator
Neurotransmitter metabolic processdefinition[GO:0042133] silver  
  • IEAOrtholog Compara
Olfactory bulb developmentdefinition[GO:0021772]  
  • ISSOrtholog Curator
Protein side chain deglutamylationdefinition[GO:0035610]  
  • ISSOrtholog Curator
  • IEAUniProtKB KW
Retina development in camera-type eyedefinition[GO:0060041] silver  
  • IEAOrtholog Compara
Enzymatic activity 
It requires the following cofactor
Binds 1 zinc ion per subunit (By similarity).  
  • CuratedUniProtKB
More information is available from:


Molecular function 
Carboxypeptidase  definition   [KW-0121]
Hydrolase  definition   [KW-0378]
Metalloprotease  definition   [KW-0482]
Protease  definition   [KW-0645]
Technical term 
Reference proteome  definition   [KW-1185]

Further external links

GenomeRNAi: 23287