RPL29 — Ribosomal Protein L29

RPL29 — Ribosomal Protein L29

Introduction

RPL29 (Ribosomal Protein L29) is a component of the large (60S) ribosomal subunit. It is a small, cysteine-rich protein that plays a structural role in ribosome function and is involved in protein synthesis essential for neuronal survival and function [1](https://pubmed.ncbi.nlm.nih.gov/10806232/).

<div class="infobox infobox-gene">
<table>
<tr><th colspan="2">RPL29 Gene</th></tr>
<tr><td>Symbol</td><td>RPL29</td></tr>
<tr><td>Full Name</td><td>Ribosomal Protein L29</td></tr>
<tr><td>Aliases</td><td>L29, HSU37072</td></tr>
<tr><td>Chromosomal Location</td><td>14q21.3</td></tr>
<tr><td>NCBI Gene ID</td><td>6165</td></tr>
<tr><td>Ensembl ID</td><td>ENSG00000137285</td></tr>
<tr><td>UniProt</td><td>P47914</td></tr>
<tr><td>Protein Length</td><td>159 amino acids</td></tr>
<tr>
<td class="label">Associated Diseases</td>
<td><a href="/wiki/cancer" style="color:#ef9a9a">Cancer</a>, <a href="/wiki/ms" style="color:#ef9a9a">Ms</a></td>
</tr>
<tr>
<td class="label">KG Connections</td>
<td><a href="/atlas" style="color:#4fc3f7">8 edges</a></td>
</tr>
</table>
</div>

Function

Ribosomal Structure

RPL29 is a ribosomal protein that contributes to the structural integrity of the 60S ribosomal subunit:

Molecular Functions

RPL29 — Ribosomal Protein L29

Introduction

RPL29 (Ribosomal Protein L29) is a component of the large (60S) ribosomal subunit. It is a small, cysteine-rich protein that plays a structural role in ribosome function and is involved in protein synthesis essential for neuronal survival and function [1](https://pubmed.ncbi.nlm.nih.gov/10806232/).

<div class="infobox infobox-gene">
<table>
<tr><th colspan="2">RPL29 Gene</th></tr>
<tr><td>Symbol</td><td>RPL29</td></tr>
<tr><td>Full Name</td><td>Ribosomal Protein L29</td></tr>
<tr><td>Aliases</td><td>L29, HSU37072</td></tr>
<tr><td>Chromosomal Location</td><td>14q21.3</td></tr>
<tr><td>NCBI Gene ID</td><td>6165</td></tr>
<tr><td>Ensembl ID</td><td>ENSG00000137285</td></tr>
<tr><td>UniProt</td><td>P47914</td></tr>
<tr><td>Protein Length</td><td>159 amino acids</td></tr>
<tr>
<td class="label">Associated Diseases</td>
<td><a href="/wiki/cancer" style="color:#ef9a9a">Cancer</a>, <a href="/wiki/ms" style="color:#ef9a9a">Ms</a></td>
</tr>
<tr>
<td class="label">KG Connections</td>
<td><a href="/atlas" style="color:#4fc3f7">8 edges</a></td>
</tr>
</table>
</div>

Function

Ribosomal Structure

RPL29 is a ribosomal protein that contributes to the structural integrity of the 60S ribosomal subunit:

Molecular Functions

• Protein synthesis: Essential for translation of mRNA into protein
• Ribosome assembly: Participates in the assembly of functional ribosomes
• Cellular localization: Cytoplasmic and nucleolar (during assembly)

Interaction Network

RPL29 interacts with:

• RPL5, RPL11: Core 60S proteins
• RPL23: Neighboring ribosomal proteins
• eIF4E: Translation initiation factor

Neurodegenerative Relevance

Alzheimer's Disease

Ribosomal dysfunction is a well-documented feature of AD:

• Translation impairment: Global reduction in protein synthesis in AD brain [2](https://pubmed.ncbi.nlm.nih.gov/1688826/)
• Ribosome aggregation: Associated with neurofibrillary tangles
• RPL29 expression: Altered in vulnerable brain regions

Parkinson's Disease

Dopaminergic neurons are particularly sensitive to translation defects:

• Protein homeostasis: Efficient ribosome function critical for α-synuclein clearance
• ER stress: Ribosome dysfunction contributes to ER stress response
• Mitochondrial function: Translation of mitochondrial proteins affected

Amyotrophic Lateral Sclerosis

• Motor neuron demands: High protein synthesis requirements
• Ribosome stalling: Implicated in ALS pathogenesis
• Stress granules: Ribosomal proteins sequestered in stress granules

Expression Patterns

| Brain Region | Expression | Notes |
|-------------|------------|-------|
| Motor cortex | High | Vulnerable in ALS |
| Hippocampus | High | Memory consolidation |
| Substantia nigra | Moderate | Dopaminergic neurons |
| Cerebellum | Moderate | Purkinje cells |

Therapeutic Implications

Research Directions

• Translation enhancers: Small molecules to improve ribosomal function
• Gene therapy: Restore expression of ribosomal proteins
• Stress granule modulators: Prevent aberrant sequestration

Biomarker Potential

• Cerebrospinal fluid levels of ribosomal proteins as biomarkers
• Translation efficiency as a therapeutic response marker

Mermaid Diagram: Ribosomal Function in Neurodegeneration

See Also

• [Ribosome Biogenesis in Neurodegeneration](/mechanisms/ribosome-biogenesis)
• [Protein Synthesis Machinery](/entities/protein-synthesis)
• [Translational Dysregulation in AD](/mechanisms/translational-dysregulation)
• [Alzheimer's Disease](/diseases/alzheimers-disease)
• [Parkinson's Disease](/diseases/parkinsons-disease)

External Links

• [NCBI Gene: RPL29](https://www.ncbi.nlm.nih.gov/gene/6165)
• [GeneCards: RPL29](https://www.genecards.org/cgi-bin/carddisp.pl?gene=RPL29)
• [UniProt: P47914](https://www.uniprot.org/uniprot/P47914)
• [Ensembl: ENSG00000137285](https://www.ensembl.org/Homo_sapiens/Gene/Summary?g=ENSG00000137285)

References