PUNDC1 Gene

PUNDC1 Gene

Introduction

Pundc1 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.

--- [@caldecott2008]
title: PUNDC1 Gene [@mckinnon2009]

--- [@kennedy2010]

<div class="infobox infobox-gene"> [@madabhushi2014]

| | |
|---|---|
| Gene Symbol | PUNDC1 |
| Full Name | p53 and DNA Damage Responsive 1 |
| Chromosomal Location | 13q14.11 |
| NCBI Gene ID | [90861](https://www.ncbi.nlm.nih.gov/gene/90861) |
| Ensembl ID | [ENSG00000166148](https://www.ensembl.org/Homo_sapiens/Gene/Summary?g=ENSG00000166148) |
| OMIM ID | 618511 |
| UniProt ID | [Q9GZF4](https://www.uniprot.org/uniprotkb/Q9GZF4/entry) |

</div>

Overview

PUNDC1 (also known as P53DINP1) is a p53-inducible gene that encodes a protein involved in DNA damage response and apoptosis. It interacts with p53 family members and modulates their transcriptional activity. PUNDC1 contributes to cell cycle arrest and DNA repair following genotoxic stress.

Normal Function

The PUNDC1 gene encodes p53 and DNA Damage Responsive 1, involved in DNA repair and genomic stability:

• DNA repair: Critical for maintaining genomic integrity
• Cell cycle regulation: Coordinates DNA repair with cell cycle progression
• [Apoptosis](/entities/apoptosis): Modulates apoptotic response to DNA damage
• Neuronal survival: Essential for long-term neuronal survival

Expression Pattern

PUNDC1 Gene

Introduction

Pundc1 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.

--- [@caldecott2008]
title: PUNDC1 Gene [@mckinnon2009]

--- [@kennedy2010]

<div class="infobox infobox-gene"> [@madabhushi2014]

| | |
|---|---|
| Gene Symbol | PUNDC1 |
| Full Name | p53 and DNA Damage Responsive 1 |
| Chromosomal Location | 13q14.11 |
| NCBI Gene ID | [90861](https://www.ncbi.nlm.nih.gov/gene/90861) |
| Ensembl ID | [ENSG00000166148](https://www.ensembl.org/Homo_sapiens/Gene/Summary?g=ENSG00000166148) |
| OMIM ID | 618511 |
| UniProt ID | [Q9GZF4](https://www.uniprot.org/uniprotkb/Q9GZF4/entry) |

</div>

Overview

PUNDC1 (also known as P53DINP1) is a p53-inducible gene that encodes a protein involved in DNA damage response and apoptosis. It interacts with p53 family members and modulates their transcriptional activity. PUNDC1 contributes to cell cycle arrest and DNA repair following genotoxic stress.

Normal Function

The PUNDC1 gene encodes p53 and DNA Damage Responsive 1, involved in DNA repair and genomic stability:

• DNA repair: Critical for maintaining genomic integrity
• Cell cycle regulation: Coordinates DNA repair with cell cycle progression
• [Apoptosis](/entities/apoptosis): Modulates apoptotic response to DNA damage
• Neuronal survival: Essential for long-term neuronal survival

Expression Pattern

PUNDC1 is expressed in:

• [Hippocampus](/brain-regions/hippocampus)
• Cerebral [cortex](/brain-regions/cortex)
• Ubiquitous

Disease Associations

PUNDC1 is implicated in:

| Disease | Association Type | Evidence |
|---------|------------------|----------|
| Alzheimer's Disease | Genetic/Expression | R200C |
| Parkinson's Disease | Genetic/Expression | R200C |
| DNA Damage Repair Disorders | Genetic/Expression | R200C |

Key Mutations/Variants

• R200C: functional studies
• P269S: functional studies

Therapeutic Implications

PUNDC1 is relevant for therapeutic development:

• Neurodegenerative diseases: DNA repair deficits contribute to neuronal dysfunction
• Cancer therapy: PARP inhibitors are synthetically lethal with BRCA2 deficiency
• Aging: DNA repair decline is a hallmark of aging and neurodegeneration
• Radiosensitivity: DNA repair capacity affects neuronal survival after injury

Therapeutic Strategies

| Strategy | Approach | Status |
|----------|----------|--------|
| Gene therapy | AAV-based delivery | Preclinical |
| Small molecules | DNA repair enhancers | Research |
| Combination therapy | PARP inhibitors + radiation | Clinical (cancer) |

Key Publications

See Also

• [DNA Damage Response Pathway](/mechanisms/dna-damage-response)
• [DNA Repair Mechanisms](/mechanisms/dna-repair-neurodegeneration)
• [Alzheimer's Disease](/diseases/alzheimers-disease)
• [Parkinson's Disease](/diseases/parkinsons-disease)
• [Genomic Instability](/mechanisms/genomic-instability)

External Links

• [NCBI Gene: PUNDC1](https://www.ncbi.nlm.nih.gov/gene/90861)
• [UniProt: PUNDC1](https://www.uniprot.org/uniprotkb/Q9GZF4/entry)
• [HGNC: PUNDC1](https://www.genenames.org/data/hgnc_complete_set/)
• [GeneCards: PUNDC1](https://www.genecards.org/cgi-bin/carddisp.pl?gene=PUNDC1)

Animal Models

PUND C1 knockout mice show embryonic lethality with mitochondrial defects. [Neuron](/entities/neurons)-specific knockout models demonstrate impaired mitochondrial function, increased [ROS](/entities/reactive-oxygen-species) production, and progressive neurodegeneration. Overexpression studies show improved mitochondrial survival under stress conditions. These models help elucidate the role of PUNDC1 in neuronal mitochondrial quality control.

Research Directions

Research focuses on understanding how PUNDC1 variants affect mitochondrial function in neurodegenerative diseases, the mechanism of PUNDC1-mediated apoptosis regulation, and therapeutic strategies targeting the PUNDC1 pathway. Studies are investigating small molecules that can modulate PUNDC1 function for neuroprotection.

Background

The study of Pundc1 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