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RPL10A — Ribosomal Protein L10A
RPL10A — Ribosomal Protein L10A
<table class="infobox infobox-gene">
<tr>
<th class="infobox-header" colspan="2">rpl10a</th>
</tr>
<tr>
<td class="label">Symbol</td>
<td>RPL10A</td>
</tr>
<tr>
<td class="label">Name</td>
<td>Ribosomal Protein L10A</td>
</tr>
<tr>
<td class="label">Chromosome</td>
<td>6p21.3</td>
</tr>
<tr>
<td class="label">NCBI Gene ID</td>
<td>6146</td>
</tr>
<tr>
<td class="label">UniProt ID</td>
<td>P62906</td>
</tr>
<tr>
<td class="label">Protein Family</td>
<td>Ribosomal protein L10 family</td>
</tr>
<tr>
<td class="label">Molecular Weight</td>
<td>~24 kDa</td>
</tr>
<tr>
<td class="label">Expression</td>
<td>Ubiquitous, high in brain and liver</td>
</tr>
<tr>
<td class="label">KG Connections</td>
<td><a href="/atlas" style="color:#4fc3f7">1 edges</a></td>
</tr>
</table>
Overview
Gene Structure and Evolution
The RPL10A gene spans approximately 8.5 kb on chromosome 6p21.3 and consists of 7 exons. The gene encodes a protein of 216 amino acids that is highly conserved across eukaryotes, from yeast to humans [@rpla]. RPL10A belongs to the ribosomal protein L10P family, which is essential for ribosomal assembly and function. The protein is also known as p17, ribosomal protein P1, or nucleolin-like protein, reflecting its multiple cellular roles beyond ribosome biogenesis [@kraft2022].
RPL10A — Ribosomal Protein L10A
<table class="infobox infobox-gene">
<tr>
<th class="infobox-header" colspan="2">rpl10a</th>
</tr>
<tr>
<td class="label">Symbol</td>
<td>RPL10A</td>
</tr>
<tr>
<td class="label">Name</td>
<td>Ribosomal Protein L10A</td>
</tr>
<tr>
<td class="label">Chromosome</td>
<td>6p21.3</td>
</tr>
<tr>
<td class="label">NCBI Gene ID</td>
<td>6146</td>
</tr>
<tr>
<td class="label">UniProt ID</td>
<td>P62906</td>
</tr>
<tr>
<td class="label">Protein Family</td>
<td>Ribosomal protein L10 family</td>
</tr>
<tr>
<td class="label">Molecular Weight</td>
<td>~24 kDa</td>
</tr>
<tr>
<td class="label">Expression</td>
<td>Ubiquitous, high in brain and liver</td>
</tr>
<tr>
<td class="label">KG Connections</td>
<td><a href="/atlas" style="color:#4fc3f7">1 edges</a></td>
</tr>
</table>
Overview
Gene Structure and Evolution
The RPL10A gene spans approximately 8.5 kb on chromosome 6p21.3 and consists of 7 exons. The gene encodes a protein of 216 amino acids that is highly conserved across eukaryotes, from yeast to humans [@rpla]. RPL10A belongs to the ribosomal protein L10P family, which is essential for ribosomal assembly and function. The protein is also known as p17, ribosomal protein P1, or nucleolin-like protein, reflecting its multiple cellular roles beyond ribosome biogenesis [@kraft2022].
Phylogenetic analysis reveals that RPL10A is one of the most conserved ribosomal proteins, suggesting critical functional importance. The gene has undergone minimal duplication events compared to other ribosomal proteins, indicating strong selective pressure to maintain a single functional copy [@lee2020].
Protein Structure and Biochemistry
RPL10A is a component of the large (60S) ribosomal subunit, where it plays a central role in ribosome assembly and function. The protein contains several functional domains:
- N-terminal domain: Involved in binding to the 28S rRNA of the 60S subunit
- Central domain: Contains the peptidyl transferase center interaction site
- C-terminal domain: Mediates interactions with translation factors and other ribosomal proteins
The protein contains a conserved RPL10 signature motif that is essential for its function in translation. Structural studies have shown that RPL10A interacts directly with the ribosomal RNA and with other ribosomal proteins including RPL5 and RPL11, forming a critical bridge in the 60S subunit [@benshem2011][@gamalinda2014].
Post-translational Modifications
RPL10A undergoes several post-translational modifications that regulate its function:
- Phosphorylation: Multiple serine/threonine phosphorylation sites regulate ribosome assembly and function
- Acetylation: Lysine acetylation influences protein-protein interactions
- Methylation: Arginine methylation affects RNA binding
- Ubiquitination: Non-canonical ubiquitination plays roles in ribosome quality control
Normal Cellular Function
Translation Regulation
RPL10A plays multiple roles in translation regulation beyond its structural function in the ribosome:
Extra-ribosomal Functions
Beyond translation, RPL10A has several extra-ribosomal functions:
- DNA repair: RPL10A has been implicated in DNA damage response pathways [@dahl2020]
- Cell cycle regulation: The protein interacts with cell cycle regulators
- Apoptosis: RPL10A can modulate apoptotic pathways under cellular stress [@zhang2019]
- Signal transduction: The protein has been reported to interact with various signaling molecules
Expression Pattern
RPL10A is ubiquitously expressed with highest levels in tissues with high protein synthesis demands:
- Brain (especially neurons)
- Liver
- Kidney
- Pancreas
Within the brain, RPL10A is expressed in neurons and glia, with particular enrichment in synaptic regions where local protein synthesis is crucial for synaptic plasticity [@holt2019].
Role in Neurodegenerative Diseases
Alzheimer's Disease
Ribosomal dysfunction is a well-established hallmark of Alzheimer's disease, and RPL10A plays a key role in this process:
Translational impairment: Multiple studies have documented reduced translation efficiency in AD brain tissue. Ribosomes from AD hippocampus show decreased binding to mRNA and reduced activity [@wang2020]. RPL10A expression is altered in AD, contributing to the general translational deficit.
Amyloid-beta effects: Amyloid-beta oligomers directly impair translation by affecting ribosomal function. Studies show that Aβ accumulation leads to differential expression of ribosomal proteins including RPL10A [@hernandez2019].
Tau pathology: Hyperphosphorylated tau affects ribosomal function through multiple mechanisms. Tau interacts with ribosomal proteins and translation machinery, and RPL10A dysfunction may contribute to the characteristic translational deficits in AD [@b2021].
Synaptic translation: Local translation at synapses is crucial for memory formation and synaptic plasticity. In AD, synaptic translation is severely impaired, with RPL10A playing a role in this deficit. The protein's localization to dendritic spines suggests a role in activity-dependent translation [@rugerio2022].
Parkinson's Disease
RPL10A dysfunction contributes to several aspects of PD pathogenesis:
Alpha-synuclein toxicity: Alpha-synuclein aggregation affects ribosomal function and translation. Studies have shown that alpha-synuclein can directly interact with ribosomes and impair translation, potentially involving RPL10A [@linguin2018].
Mitochondrial dysfunction: PD is associated with mitochondrial dysfunction, which impacts cellular energy status and translation. RPL10A expression is modulated by mitochondrial stress, and this may contribute to the characteristic translational deficits in dopaminergic neurons [@gigure2019].
Lewy body pathology: Ribosomal proteins including RPL10A are found in Lewy bodies, suggesting they may be involved in the aggregation process or represent cellular stress response [@wakabayashi2020].
Amyotrophic Lateral Sclerosis (ALS)
Ribosomal dysfunction is a key feature of ALS:
Translation defects: Motor neurons in ALS show impaired translation efficiency. RPL10A is differentially expressed in ALS spinal cord, suggesting a role in the disease process [@lo2021].
RNA metabolism: ALS is associated with defects in RNA metabolism. RPL10A's role in translation makes it relevant to this pathway, as many ALS-associated proteins regulate RNA processing.
Stress granules: Stress granules contain ribosomal proteins and translation factors. RPL10A is found in stress granules, which are dysregulated in ALS [@mateju2020].
Huntington's Disease
Translation dysregulation: Huntington's disease is associated with broad translational deficits. Ribosomal profiling studies show reduced translation efficiency, with RPL10A potentially contributing to this deficit [@koch2021].
Mutant huntingtin effects: Mutant huntingtin protein affects ribosome function and assembly. RPL10A expression is altered in HD models, contributing to the characteristic translational impairment [@cervera2019].
Frontotemporal Dementia
Frontotemporal dementia (FTD) represents a group of disorders characterized by progressive neuronal loss in the frontal and temporal lobes. Ribosomal dysfunction has emerged as a significant contributor to FTD pathogenesis:
TDP-43 pathology: The majority of FTD cases involve TDP-43 proteinopathy. TDP-43 regulates RNA processing and translation, and its aggregation disrupts ribosomal function. Studies show that TDP-43 aggregates co-localize with ribosomal proteins in affected neurons, potentially including RPL10A [@neumann2020].
GRN mutations: Progranulin (GRN) mutations cause familial FTD. Progranulin is involved in lysosomal function and autophagy, which intersect with ribosomal quality control pathways. RPL10A dysfunction may contribute to the translational deficits observed in GRN-related FTD [@baker2021].
Stress granule dynamics: FTD is associated with altered stress granule biology. Stress granules contain ribosomal components and translation factors. RPL10A's presence in stress granules suggests a role in FTD pathogenesis through dysregulated stress response [@wolozin2019].
Progressive Supranuclear Palsy
Progressive supranuclear palsy (PSP) is a tauopathy characterized by neurofibrillary tangles composed of hyperphosphorylated tau. Ribosomal dysfunction contributes to PSP pathogenesis:
Tau-ribosome interactions: Hyperphosphorylated tau directly interacts with ribosomes and translation machinery. RPL10A, as a core ribosomal protein, may be affected by these interactions, contributing to the characteristic translational deficits in PSP [@dickson2020].
Brainstem vulnerability: PSP affects brainstem nuclei including the substantia nigra. The selective vulnerability of specific neuronal populations may relate to their translational demands and RPL10A function.
Amyotrophic Lateral Sclerosis (ALS)
Ribosomal dysfunction is a key feature of ALS:
Translation defects: Motor neurons in ALS show impaired translation efficiency. RPL10A is differentially expressed in ALS spinal cord, suggesting a role in the disease process [@lo2021].
RNA metabolism: ALS is associated with defects in RNA metabolism. RPL10A's role in translation makes it relevant to this pathway, as many ALS-associated proteins regulate RNA processing.
Stress granules: Stress granules contain ribosomal proteins and translation factors. RPL10A is found in stress granules, which are dysregulated in ALS [@mateju2020].
Corticobasal Degeneration
Corticobasal degeneration (CBD) is another tauopathy with overlapping features with PSP and AD. Ribosomal dysfunction contributes to CBD pathogenesis:
Cellular stress: CBD neurons exhibit severe cellular stress, including oxidative stress and ER stress. RPL10A's role in stress response integration makes it relevant to CBD pathophysiology.
Synaptic dysfunction: CBD affects cortical and basal ganglia circuits. Synaptic dysfunction is a key feature, and RPL10A's role in synaptic translation suggests involvement in CBD pathogenesis.
Protein-Protein Interactions
RPL10A interacts with multiple proteins that are relevant to neurodegeneration:
Ribosomal Proteins
- RPL5: Forms a critical bridge in the 60S subunit, involved in ribosomal assembly and p53 regulation
- RPL11: Cooperates with RPL5 in ribosome function and quality control
- RPL23: Involved in ribosomal assembly and antibiotic binding
- RPS6: Small subunit protein involved in translation initiation signaling
- RPS14: Involved in decoding center function
Translation Factors
- eIF4E: Cap-binding protein essential for translation initiation
- eIF4A: DEAD-box helicase involved in translation initiation
- eIF2α: GTP-binding protein forming the ternary complex for initiation
- eEF1A: Elongation factor involved in aminoacyl-tRNA delivery
- eEF2: Elongation factor involved in translocation
Quality Control Proteins
- Ltn1 (RQC1): E3 ubiquitin ligase involved in ribosome-associated quality control
- Rqc2: Ribosome quality control protein involved in tRNA addition
- ANP32A: Acidic nuclear phosphoprotein involved in RQC
- HCX1: Calcium-binding protein involved in stress response
- TMA64: Translation machinery-associated protein
Signaling Proteins
- mTOR: Central regulator of translation and cell growth
- AKT: Kinase involved in cell survival and translation regulation
- MAPK/ERK: Signaling pathway affecting translation
- JNK: Stress-activated kinase affecting ribosomal function
- p53: Tumor suppressor affected by ribosomal stress
Disease-Related Proteins
- TDP-43: RNA-binding protein aggregated in ALS/FTD
- FUS: RNA-binding protein mutated in ALS
- Tau (MAPT): Microtubule-associated protein in AD/PSP/CBD
- Alpha-synuclein (SNCA): Parkinson's disease protein
- Huntingtin (HTT): Huntington's disease protein
Epigenetic Regulation
RPL10A expression is regulated through epigenetic mechanisms that may be relevant to neurodegeneration:
DNA Methylation
The RPL10A promoter contains CpG islands that may be differentially methylated in neurodegenerative diseases. Studies suggest that ribosomal protein gene promoters can be hypermethylated in AD, leading to altered expression [@sztuk2019].
Histone Modifications
Histone marks such as H3K9ac and H3K27ac are associated with active transcription of ribosomal protein genes. Dysregulation of these marks may contribute to RPL10A expression changes in disease.
Non-coding RNAs
- miR-10b: Has been predicted to target RPL10A
- miR-124: Neuron-specific miR that may regulate ribosomal protein expression
- lncRNA NEAT1: Paraspeckle-associated RNA that affects translation
Clinical and Research Applications
Diagnostic Biomarkers
RPL10A expression changes may serve as diagnostic biomarkers:
- Peripheral blood mononuclear cells (PBMCs): RPL10A mRNA levels can be measured in PBMCs
- Cerebrospinal fluid (CSF): RPL10A protein detection in CSF
- Skin fibroblasts: Patient-derived fibroblasts show altered ribosomal protein expression
- Induced pluripotent stem cells (iPSCs): iPSC-derived neurons show ribosomal deficits
Prognostic Value
RPL10A expression levels correlate with disease progression:
- Lower RPL10A expression associated with faster cognitive decline in AD
- Altered RPL10A in PD substantia nigra correlates with disease severity
- RPL10A changes in ALS spinal cord correlate with disease duration
Therapeutic Monitoring
RPL10A can serve as a biomarker for therapeutic efficacy:
- Translation modulator response can be monitored via RPL10A expression
- Ribosome assembly efficiency can be assessed
- Ribosome integrity can be measured in patient samples
Molecular Mechanisms of Neurodegeneration
Ribosome Assembly Defects
RPL10A dysfunction leads to impaired ribosome assembly, reducing the capacity for protein synthesis. In neurons, where local translation is crucial for function, this has particularly severe consequences. Defects in 60S assembly affect:
- Global protein synthesis rates
- Synaptic protein synthesis
- Quality control mechanisms
- Stress response capacity
Translational Fidelity
RPL10A contributes to translational accuracy. Mutations or dysregulation of RPL10A can lead to:
- Increased misincorporation of amino acids
- Ribosome stalling
- Premature termination
- Frame-shifting errors
These defects lead to the production of aberrant proteins that accumulate and trigger cellular stress pathways [@brandman2022].
Ribosome-Associated Quality Control
The ribosome-associated quality control (RQC) pathway handles stalled ribosomes. RPL10A interfaces with RQC components including Ltn1 (RQC1), Rqc2, and ANP32. Defects in this pathway lead to:
- Accumulation of nascent polypeptide chains
- Ribosome collision-mediated stress
- Activation of integrated stress response (ISR)
- Ultimately, cell death
Stress Response Integration
RPL10A is involved in integrating cellular stress responses:
Genetic Associations and Variants
Alzheimer's Disease
Genome-wide association studies (GWAS) have identified variants near RPL10A that may influence AD risk. While not directly in the coding region, these associations suggest regulatory variants affecting RPL10A expression may modify disease risk [@jansen2019].
Parkinson's Disease
Rare variants in ribosomal protein genes have been implicated in PD. While direct pathogenic variants in RPL10A are not well-documented, the broader category of translation machinery genes shows enrichment for PD risk variants [@nalls2019].
ALS
Rare variants in ribosomal protein genes, including RPL10A, have been identified in ALS patients. These variants may affect ribosomal function and contribute to motor neuron vulnerability [@nicolas2018].
Animal Models and Research
Mouse Models
RPL10A knockout mice are embryonic lethal, demonstrating the essential nature of this protein. Conditional knockouts in specific tissues have revealed:
- Neuron-specific knockout leads to deficits in synaptic function
- Knockout in glia affects support of neuronal function
- Partial knockdown shows age-dependent neurodegeneration
Zebrafish Models
Zebrafish provide a tractable model for studying RPL10A function. Morpholino knockdown studies show:
- Developmental defects in brain formation
- Motor deficits
- Sensitivity to oxidative stress
In vitro Models
Cell culture models have been used to study RPL10A:
- siRNA knockdown in neurons shows reduced viability
- Overexpression leads to altered translation dynamics
- Stress treatments modulate RPL10A expression
Therapeutic Implications
Small Molecule Targeting
While directly targeting RPL10A is challenging, several therapeutic strategies are being explored:
Gene Therapy Approaches
- Viral vector delivery of wild-type RPL10A
- siRNA-based approaches to modulate expression
- CRISPR-based editing of pathogenic variants
Small Molecules and Compounds
Several existing drugs affect ribosomal function and may be repurposed:
- Rapamycin (mTOR inhibition affects translation)
- Ribavirin (direct effects on ribosome function)
- Eukaryotic translation inhibitors
Biomarkers
Expression Biomarkers
RPL10A expression can be measured in:
- Peripheral blood mononuclear cells (PBMCs)
- Cerebrospinal fluid (CSF)
- Postmortem brain tissue
Changes in RPL10A levels may serve as biomarkers for:
- Disease progression
- Treatment response
- Translational dysfunction
Functional Biomarkers
Functional assays measuring:
- Ribosome assembly efficiency
- Translation rates
- Ribosome integrity
These biomarkers could be used to monitor therapeutic efficacy.
Cross-linking and Related Pathways
RPL10A interacts with several key pathways relevant to neurodegeneration:
- [Translation machinery](/mechanisms/translation-machinery): Central to protein synthesis
- [Ribosome biogenesis](/mechanisms/ribosome-biogenesis): Essential for cellular function
- [Synaptic translation](/mechanisms/synaptic-translation): Critical for neuronal function
- [ER stress and UPR](/mechanisms/endoplasmic-reticulum-stress): Related to protein folding stress
- [Integrated stress response](/mechanisms/integrated-stress-response): Cellular stress signaling
- [Oxidative stress](/mechanisms/oxidative-stress-neurodegeneration): Key in neurodegeneration
- [Protein quality control](/mechanisms/protein-quality-control-network): Maintains proteostasis
Related genes and proteins:
- [RPL5](/genes/rpl5): Interacting ribosomal protein
- [RPL11](/genes/rpl11): Interacting ribosomal protein
- [RPS6](/proteins/rps6-protein): Small subunit protein
- [eIF4E](/proteins/eif4e-protein): Translation initiation factor
- [mTOR](/mechanisms/mtor-signaling-neurodegeneration): Translation regulation pathway
Future Research Directions
Mermaid Diagram: Ribosomal Dysfunction in Neurodegeneration
See Also
- [Alzheimer's Disease](/diseases/alzheimers-disease)
- [Parkinson's Disease](/diseases/parkinsons-disease)
- [Amyotrophic Lateral Sclerosis](/diseases/amyotrophic-lateral-sclerosis)
- [Huntington's Disease](/diseases/huntingtons)
- [Ribosome Biogenesis](/mechanisms/ribosome-biogenesis)
- [Synaptic Translation](/mechanisms/synaptic-translation)
- [Protein Quality Control](/mechanisms/protein-quality-control-network)
- [Translation Machinery](/mechanisms/translation-machinery)
- [Integrated Stress Response](/mechanisms/integrated-stress-response)
- [RPL5](/genes/rpl5)
- [RPL11](/genes/rpl11)
External Links
- [NCBI Gene: RPL10A](https://www.ncbi.nlm.nih.gov/gene/6146)
- [UniProt: P62906](https://www.uniprot.org/uniprot/P62906)
- [Ensembl: ENSG00000101190](https://www.ensembl.org/Homo_sapiens/Gene/Summary?g=ENSG00000101190)
- [KEGG Ribosome Pathway](https://www.genome.jp/kegg/pathway/map03010)
References
▸Metadataorigin_type: v1_polymorphic_backfill
| slug | genes-rpl10a |
| kg_node_id | RPL10A |
| entity_type | gene |
| origin_type | v1_polymorphic_backfill |
| source_table | wiki_pages |
| wiki_page_id | wp-e5302b00fd2e |
| __merged_from | {'merged_at': '2026-05-13', 'unprefixed_id': 'genes-rpl10a'} |
| _schema_version | 1 |
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