PPARGC1B — PPARG Coactivator 1 Beta

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PPARGC1B — PPARG Coactivator 1 Beta

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PPARGC1B — PPARG Coactivator 1 Beta

Introduction

Ppargc1B — Pparg Coactivator 1 Beta is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.

Overview

The PPARGC1B (PPARG Coactivator 1 Beta) gene, also known as PGC-1β (Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1 Beta), encodes a transcriptional coactivator critical for mitochondrial biogenesis, energy metabolism, and cellular stress responses. It plays important roles in neurodegenerative diseases. [@handschin2007]

Gene Information

<div class="infobox infobox-gene"> [@stpierre2006]
<table> [@luo2016]
<tr><th>Gene Symbol</th><td>PPARGC1B (PGC1B)</td></tr> [@yang2020]
<tr><th>Full Name</th><td>PPARG Coactivator 1 Beta</td></tr> [@jiang2020]
<tr><th>Chromosomal Location</th><td>5q31.1</td></tr> [@wu2019]
<tr><th>NCBI Gene ID</th><td>[55627](https://www.ncbi.nlm.nih.gov/gene/55627)</td></tr> [@vingtdeux2011]
<tr><th>OMIM</th><td>[607981](https://www.omim.org/entry/607981)</td></tr>
<tr><th>Ensembl ID</th><td>ENSG00000155846</td></tr>
<tr><th>UniProt ID</th><td>[Q9Y5U8](https://www.uniprot.org/uniprot/Q9Y5U8)</td></tr>
<tr><th>Associated Diseases</th><td>Alzheimer's Disease, Parkinson's Disease, Metabolic Disorders</td></tr>
</table>
</div>

Function

PGC-1β is a transcriptional coactivator that regulates genes involved in energy metabolism:

...

PPARGC1B — PPARG Coactivator 1 Beta

Introduction

Ppargc1B — Pparg Coactivator 1 Beta is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.

Overview

The PPARGC1B (PPARG Coactivator 1 Beta) gene, also known as PGC-1β (Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1 Beta), encodes a transcriptional coactivator critical for mitochondrial biogenesis, energy metabolism, and cellular stress responses. It plays important roles in neurodegenerative diseases. [@handschin2007]

Gene Information

<div class="infobox infobox-gene"> [@stpierre2006]
<table> [@luo2016]
<tr><th>Gene Symbol</th><td>PPARGC1B (PGC1B)</td></tr> [@yang2020]
<tr><th>Full Name</th><td>PPARG Coactivator 1 Beta</td></tr> [@jiang2020]
<tr><th>Chromosomal Location</th><td>5q31.1</td></tr> [@wu2019]
<tr><th>NCBI Gene ID</th><td>[55627](https://www.ncbi.nlm.nih.gov/gene/55627)</td></tr> [@vingtdeux2011]
<tr><th>OMIM</th><td>[607981](https://www.omim.org/entry/607981)</td></tr>
<tr><th>Ensembl ID</th><td>ENSG00000155846</td></tr>
<tr><th>UniProt ID</th><td>[Q9Y5U8](https://www.uniprot.org/uniprot/Q9Y5U8)</td></tr>
<tr><th>Associated Diseases</th><td>Alzheimer's Disease, Parkinson's Disease, Metabolic Disorders</td></tr>
</table>
</div>

Function

PGC-1β is a transcriptional coactivator that regulates genes involved in energy metabolism:

Mitochondrial Biogenesis

Coactivates NRF-1, NRF-2, and ERRα for mitochondrial gene expression
Induces TFAM expression for mtDNA replication
Increases mitochondrial mass and function
Works coordinately with PGC-1α

Energy Metabolism

Regulates genes involved in oxidative phosphorylation
Controls fatty acid oxidation enzymes
Modulates glucose metabolism
Important for brown adipose tissue function

Antioxidant Defense

Upregulates expression of antioxidant genes
Increases SOD, catalase, and glutathione peroxidase
Protects against oxidative stress
Important for neurodegeneration

Thermogenesis

Essential for brown fat thermogenesis
Regulates uncoupling proteins (UCPs)
Important for maintaining body temperature

Lipid Metabolism

Regulates lipogenic genes
Controls cholesterol metabolism
Important for lipid homeostasis

Disease Associations

Alzheimer's Disease

PGC-1β expression is reduced in AD brains
Mitochondrial dysfunction is a hallmark of AD
Enhancing PGC-1β may protect against amyloid toxicity
Therapeutic target for AD

Parkinson's Disease

PGC-1β deficiency may contribute to PD pathogenesis
Protects dopaminergic [neurons](/entities/neurons) from mitochondrial toxins
May enhance mitophagy
Gene therapy approaches being explored

Metabolic Disorders

Linked to obesity and type 2 diabetes
Important for insulin sensitivity
Therapeutic target for metabolic syndrome

ALS

PGC-1β is dysregulated in ALS models
May protect against motor neuron degeneration
Mitochondrial dysfunction in ALS

Expression

Brain Expression

Expressed in [cortex](/brain-regions/cortex), [hippocampus](/brain-regions/hippocampus), cerebellum
Higher expression in neurons than glia
Activity-regulated expression
Declines with age

Cellular Localization

Nuclear localization
Associates with transcription factors
Cytoplasmic localization in unstimulated cells
Translocates to nucleus upon activation

Therapeutic Implications

Neurodegeneration

PGC-1β agonists being developed
Gene therapy approaches
Small molecule activators
Exercise can upregulate PGC-1β

Metabolic Disease

PPAR agonists can activate PGC-1β
Exercise and cold exposure increase expression
Potential for metabolic syndrome treatment

Key Publications

Lin J, et al. (2004). "Defects in adaptive energy metabolism with CNS-linked hyperactivity in PGC-1α null mice." Cell. [DOI:10.1016/j.cell.2004.06.016](https://doi.org/10.1016/j.cell.2004.06.016)

Handschin C, Spiegelman BM. (2006). "Peroxisome proliferator-activated receptor gamma coactivator 1 coactivators, energy homeostasis, and metabolism." Endocr Rev. [DOI:10.1210/er.2006-0037](https://doi.org/10.1210/er.2006-0037)

St-Pierre J, et al. (2006). "Suppression of [reactive oxygen species](/entities/reactive-oxygen-species) and neurodegeneration by the PGC-1 transcriptional coactivators." Cell. [DOI:10.1016/j.cell.2006.09.024](https://doi.org/10.1016/j.cell.2006.09.024)

Luo C, et al. (2016). "PGC-1α in neurodegeneration: a therapeutic target?" Neurobiol Aging. [DOI:10.1016/j.neurobiolaging.2016.02.019](https://doi.org/10.1016/j.neurobiolaging.2016.02.019)

Yang X, et al. (2020). "PPARGC1B deletion induces dopaminergic neuron loss in mice." Neuropharmacology. [DOI:10.1016/j.neuropharm.2020.108044](https://doi.org/10.1016/j.neuropharm.2020.108044)

Background

The study of Ppargc1B — Pparg Coactivator 1 Beta 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.

External Links

[NCBI Gene: PPARGC1B](https://www.ncbi.nlm.nih.gov/gene/55627)
[UniProt: PGC-1β](https://www.uniprot.org/uniprot/Q9Y5U8)
[OMIM: PPARGC1B](https://www.omim.org/entry/607981)
[Ensembl: PPARGC1B](https://www.ensembl.org/Homo_sapiens/ENSG00000155846)

References

[Lin J, et al, (2005) (2005)](https://doi.org/10.1016/j.cell.2005.02.027)

[Handschin C, et al, (2007) (2007)](https://doi.org/10.1210/er.2006-0037)

[St-Pierre J, et al, (2006) (2006)](https://doi.org/10.1016/j.cell.2006.09.024)

[Luo C, et al, (2016) (2016)](https://doi.org/10.1016/j.neurobiolaging.2016.02.019)

[Yang X, et al, (2020) (2020)](https://doi.org/10.1016/j.neuropharm.2020.108044)

[Jiang H, et al, (2020) (2020)](https://doi.org/10.1016/j.freeradbiomed.2020.01.016)

[Wu J, et al, (2019) (2019)](https://doi.org/10.1038/s41582-019-0198-1)

[Vingtdeux V, et al, (2011) (2011)](https://doi.org/10.1038/cddis.2011.94)

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Related Entities

PGC1B

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kg_node_id	PGC1B
entity_type	gene
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wiki_page_id	wp-07de09664837
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_schema_version	1

📊 Evidence Profile

Evidence Balance

+0%

Certainty

25%

Debates

0

Incoming

5

Outgoing

5

0 supporting 0 contradicting 0 neutral

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📗 Cite This Artifact

PPARGC1B — PPARG Coactivator 1 Beta

PPARGC1B — PPARG Coactivator 1 Beta

Introduction

Overview

Gene Information

Function

PPARGC1B — PPARG Coactivator 1 Beta

Introduction

Overview

Gene Information

Function

Mitochondrial Biogenesis

Energy Metabolism

Antioxidant Defense

Thermogenesis

Lipid Metabolism

Disease Associations

Alzheimer's Disease

Parkinson's Disease

Metabolic Disorders

ALS

Expression

Brain Expression

Cellular Localization

Therapeutic Implications

Neurodegeneration

Metabolic Disease

See Also

Key Publications

Background

External Links

References

💬 Discussion