Ppt1 Gene Palmitoyl Protein Thioesterase 1 is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
| Attribute | Value | [@lyly2009] |-----------|-------| | Gene Symbol | PPT1 | | Gene Name | Palmitoyl-Protein Thioesterase 1 | | Official Full Name | Palmitoyl-Protein Thioesterase 1 | | Chromosomal Location | 1p34.2 | | GRCh38 Coordinates | chr1:40,285,938-40,313,917 | | NCBI Gene ID | 5538 | | OMIM ID | 256730 | | Ensembl ID | ENSG00000131238 | | UniProt ID | P60617 | | Gene Family | Palmitoyl-protein thioesterase family |
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Overview
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PPT1 Gene
Introduction
Ppt1 Gene Palmitoyl Protein Thioesterase 1 is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
| Attribute | Value | [@lyly2009] |-----------|-------| | Gene Symbol | PPT1 | | Gene Name | Palmitoyl-Protein Thioesterase 1 | | Official Full Name | Palmitoyl-Protein Thioesterase 1 | | Chromosomal Location | 1p34.2 | | GRCh38 Coordinates | chr1:40,285,938-40,313,917 | | NCBI Gene ID | 5538 | | OMIM ID | 256730 | | Ensembl ID | ENSG00000131238 | | UniProt ID | P60617 | | Gene Family | Palmitoyl-protein thioesterase family |
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Overview
Mermaid diagram (expand to render)
The PPT1 gene encodes palmitoyl-protein thioesterase 1 (PPT1), a lysosomal enzyme that catalyzes the removal of palmitate (C16:0) fatty acid chains from cysteine residues of proteins. This post-translational modification (S-acylation/palmitoylation) regulates protein localization and function. Mutations in PPT1 cause Infantile Neuronal Ceroid Lipofuscinosis (INCL), the most severe form of Batten disease<sup>[1]</sup>.
Function
Enzymatic Activity
PPT1 is a 306-amino acid enzyme (34 kDa) that functions as a homodimer in the lysosome. It catalyzes:
Palmitoyl-protein + H₂O → Protein + Palmitate
This reaction removes lipid modifications from proteins, allowing their degradation in the lysosome<sup>[1]</sup>.
Normal Physiological Roles
Protein Depalmitoylation: Removes palmitate from signaling proteins
Lysosomal Protein Degradation: Essential for turnover of palmitoylated proteins
Several clinical trials are investigating gene therapy and enzyme replacement approaches for INCL.
Research Directions
Optimizing enzyme delivery to the CNS
Understanding palmitoylation in neuronal function
Developing gene therapy vectors
Identifying biomarkers for clinical trials
Background
The study of Ppt1 Gene Palmitoyl Protein Thioesterase 1 has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.
Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.