GABARAP Gene

GABARAP Gene

<table class="infobox infobox-gene">
<tr>
<th class="infobox-header" colspan="2">GABARAP Gene</th>
</tr>
<tr>
<td class="label">Gene Symbol</td>
<td>GABARAP</td>
</tr>
<tr>
<td class="label">Full Name</td>
<td>GABA Type A Receptor Associated Protein</td>
</tr>
<tr>
<td class="label">Chromosomal Location</td>
<td>17p13.1</td>
</tr>
<tr>
<td class="label">NCBI Gene ID</td>
<td>23710</td>
</tr>
<tr>
<td class="label">OMIM</td>
<td>607418</td>
</tr>
<tr>
<td class="label">Ensembl ID</td>
<td>ENSG00000138967</td>
</tr>
<tr>
<td class="label">UniProt</td>
<td>O95166</td>
</tr>
<tr>
<td class="label">Gene Type</td>
<td>Protein-coding (ATG8 family)</td>
</tr>
<tr>
<td class="label">Disease</td>
<td>Inheritance</td>
</tr>
<tr>
<td class="label">Agent</td>
<td>Target</td>
</tr>
<tr>
<td class="label">Small molecule autophagy inducers</td>
<td>ATG proteins</td>
</tr>
<tr>
<td class="label">GABARAP-specific modulators</td>
<td>GABARAP</td>
</tr>
<tr>
<td class="label">Associated Diseases</td>
<td><a href="/wiki/als" style="color:#ef9a9a">ALS</a>, <a href="/wiki/aging" style="color:#ef9a9a">Aging</a>, <a href="/wiki/als" style="color:#ef9a9a">Als</a>, <a href="/wiki/alzheimer" style="color:#ef9a9a">Alzheimer</a>, <a href="/wiki/amyotrophic-lateral-sclerosis" style="color:#ef9a9a">Amyotrophic Lateral Sclerosis</a></td>
</tr>
<tr>
<td class="label">KG Connections</td>
<td><a href="/atlas" style="color:#4

...

GABARAP Gene

<table class="infobox infobox-gene">
<tr>
<th class="infobox-header" colspan="2">GABARAP Gene</th>
</tr>
<tr>
<td class="label">Gene Symbol</td>
<td>GABARAP</td>
</tr>
<tr>
<td class="label">Full Name</td>
<td>GABA Type A Receptor Associated Protein</td>
</tr>
<tr>
<td class="label">Chromosomal Location</td>
<td>17p13.1</td>
</tr>
<tr>
<td class="label">NCBI Gene ID</td>
<td>23710</td>
</tr>
<tr>
<td class="label">OMIM</td>
<td>607418</td>
</tr>
<tr>
<td class="label">Ensembl ID</td>
<td>ENSG00000138967</td>
</tr>
<tr>
<td class="label">UniProt</td>
<td>O95166</td>
</tr>
<tr>
<td class="label">Gene Type</td>
<td>Protein-coding (ATG8 family)</td>
</tr>
<tr>
<td class="label">Disease</td>
<td>Inheritance</td>
</tr>
<tr>
<td class="label">Agent</td>
<td>Target</td>
</tr>
<tr>
<td class="label">Small molecule autophagy inducers</td>
<td>ATG proteins</td>
</tr>
<tr>
<td class="label">GABARAP-specific modulators</td>
<td>GABARAP</td>
</tr>
<tr>
<td class="label">Associated Diseases</td>
<td><a href="/wiki/als" style="color:#ef9a9a">ALS</a>, <a href="/wiki/aging" style="color:#ef9a9a">Aging</a>, <a href="/wiki/als" style="color:#ef9a9a">Als</a>, <a href="/wiki/alzheimer" style="color:#ef9a9a">Alzheimer</a>, <a href="/wiki/amyotrophic-lateral-sclerosis" style="color:#ef9a9a">Amyotrophic Lateral Sclerosis</a></td>
</tr>
<tr>
<td class="label">KG Connections</td>
<td><a href="/atlas" style="color:#4fc3f7">626 edges</a></td>
</tr>
</table>

Pathway Diagram

Introduction

Gabarap Gene is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.

GABARAP (GABA Type A Receptor-Associated Protein) is a ubiquitin-like protein involved in autophagy, intracellular trafficking, and GABA receptor clustering. It plays important roles in neurodegeneration through its effects on protein clearance and receptor trafficking.

Overview

This page provides comprehensive information about the protein/gene, its function in the nervous system, and its role in neurodegenerative diseases.

Basic Information

Function

GABARAP is a member of the ATG8 family (MAP1LC3/GABARAP family) with multiple cellular functions:

• Autophagosome formation: GABARAP is involved in the closure and maturation of autophagosomes
• Cargo recognition: GABARAP binds to autophagy receptors (p62, NBR1) to facilitate selective autophagy
• GABA receptor trafficking: GABARAP mediates clustering and synaptic targeting of GABA-A receptors
• Intracellular transport: GABARAP participates in vesicular trafficking pathways
• Mitochondrial quality control: GABARAP-mediated mitophagy removes damaged mitochondria
• Nucleophagy: GABARAP is involved in selective autophagy of the nucleus

Disease Associations

Expression

GABARAP is ubiquitously expressed with high levels in:

• Brain ([cortex](/brain-regions/cortex), cerebellum, hippocampus)
• Heart
• Liver
• Kidney

Key Publications

Nara A, et al. (2002) Golgi accumulation of autophagy proteins in neuronal cells. J Cell Sci. 115(Pt 13):2659-2670.

Lee JY, et al. (2019) GABARAP family proteins are essential for autophagy and neurological function. Mol Cell. 73(6):1180-1195.

Schwarten M, et al. (2015) GABARAP directly binds [LRRK2](/entities/lrrk2) to modulate autophagy. [Autophagy](/entities/autophagy). 11(12):2163-2173.

Therapeutic Implications

GABARAP and other ATG8 family proteins represent promising therapeutic targets:

• Parkinson's Disease: Enhancing GABARAP-mediated autophagy may improve clearance of [alpha-synuclein](/proteins/alpha-synuclein) aggregates. The GABARAP:LC3 ratio influences autophagosome formation efficiency.
• Alzheimer's Disease: Modulating GABARAP could enhance clearance of [amyloid-beta](/proteins/amyloid-beta) and [tau](/proteins/tau) aggregates through selective autophagy.
• Amyotrophic Lateral Sclerosis: Restoring autophagy flux via GABARAP may protect motor [neurons](/entities/neurons) from protein aggregate toxicity.

Drug Development Status

Research Directions

Selective autophagy receptors: Understanding how GABARAP interacts with p62, NBR1, and OPTN

Non-autophagic functions: GABARAP's role in intracellular trafficking and receptor signaling

Post-translational modifications: Phosphorylation and acetylation effects on GABARAP function

Structure-based drug design: Developing selective GABARAP modulators

Animal Models

• GABARAP knockout mice: Viable but show accumulation of protein aggregates under stress
• GABARAP/LG3 double knockout: Lethal, demonstrating essential functions
• Fly models (dGABARAP): Show neurodegeneration and lifespan reduction

Clinical Relevance

GABARAP variations and expression levels are associated with:

• Neurodegenerative disease risk: Altered autophagy in PD and AD
• Cancer: GABARAP has tumor suppressor activity in some contexts
• Metabolic disorders: Role in lipid metabolism and insulin signaling

Summary

GABARAP is a multifunctional ATG8 family protein critical for autophagy and intracellular trafficking. Its dysregulation contributes to neurodegeneration through impaired protein clearance. Therapeutic modulation of GABARAP-dependent pathways offers potential for treating protein aggregation diseases.

Key Takeaways

• Essential for autophagosome formation and selective autophagy
• Binds LC3-interacting regions (LIR) in autophagy receptors
• Dysfunction implicated in PD, AD, and ALS
• Non-autophagic functions in receptor trafficking
• Therapeutic potential as autophagy modulator

Background

The study of Gabarap Gene 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.

References

^{[[1]](https://pubmed.ncbi.nlm.nih.gov/15616571/)} GABARAP and autophagy. PMID: 15616571(https://pubmed.ncbi.nlm.nih.gov/15616571/)

See Also

• [Autophagy-Lysosomal Pathway](/mechanisms/autophagy-lysosome-neurodegeneration)
• [Protein Quality Control Network](/mechanisms/protein-quality-control)
• [LC3 Protein](/proteins/lc3-protein)
• [Parkinson's Disease](/diseases/parkinsons-disease)
• [Alpha-Synuclein Pathway](/proteins/alpha-synuclein)

Pathway Diagram

The following diagram shows the key molecular relationships involving GABARAP Gene discovered through SciDEX knowledge graph analysis: